{"schemaVersion":"1.0","id":"business-diversity-by-postcode","dataset":"business-diversity-by-postcode","title":"Business diversity by postcode","description":"How broad each district's registered SIC mix is—and how much one shared postcode dominates it.","methodology":"Live companies from the monthly Companies House bulk snapshot, restricted by full postcode to London and aggregated to postcode district. The effective-number measure is the exponential Shannon diversity of declared SIC sections: it rises when registrations are spread evenly across more sections. The shared-address diagnostic reports the share registered at the busiest full postcode; it suggests address concentration but does not identify a formation agent. These are registered offices, not workplaces, jobs or high-street premises. Cells are centroid-based comparison areas rather than Royal Mail boundaries.","category":"money","categoryLabel":"Money","cadence":"monthly","placeholder":false,"landingPage":"https://londongraph.com/g/business-diversity-by-postcode","markdown":"https://londongraph.com/g/business-diversity-by-postcode/index.html.md","source":{"name":"Companies House","url":"https://download.companieshouse.gov.uk/en_output.html","licence":"Open Government Licence v3.0","licenceUrl":"https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/"},"updatedAt":"2026-09-16T02:16:08.346Z","release":{"label":"Live-company snapshot 2026-09-01","publishedAt":"2026-09-01T00:00:00.000Z","resourceUrl":"https://download.companieshouse.gov.uk/BasicCompanyData-2026-09-01-part1_7.zip https://download.companieshouse.gov.uk/BasicCompanyData-2026-09-01-part2_7.zip https://download.companieshouse.gov.uk/BasicCompanyData-2026-09-01-part3_7.zip https://download.companieshouse.gov.uk/BasicCompanyData-2026-09-01-part4_7.zip https://download.companieshouse.gov.uk/BasicCompanyData-2026-09-01-part5_7.zip https://download.companieshouse.gov.uk/BasicCompanyData-2026-09-01-part6_7.zip https://download.companieshouse.gov.uk/BasicCompanyData-2026-09-01-part7_7.zip","methodologyUrl":"https://www.gov.uk/guidance/companies-house-data-products","sha256":"a742d5a95a80b419a41ef51c96f018b3ac64ce2b5207dfa8b78ec482a92107c7"},"observations":null,"areaStatistics":[{"period":"2026-09-01","geographyCode":"BR1","geographyName":"BR1","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.492753623188406,"unique_full_postcodes":881,"effective_sic_sections":13.906568073453895,"top_full_postcode_count":594,"top_full_postcode_share":8.040064970221982,"active_registered_companies":7388},"metadata":{"denominator":7388,"geographyCode":"BR1","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"BR2","geographyName":"BR2","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":12.478991596638656,"unique_full_postcodes":759,"effective_sic_sections":14.33813968556283,"top_full_postcode_count":338,"top_full_postcode_share":7.904583723105706,"active_registered_companies":4276},"metadata":{"denominator":4276,"geographyCode":"BR2","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"BR3","geographyName":"BR3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":22.020769492679605,"unique_full_postcodes":812,"effective_sic_sections":11.152664814051949,"top_full_postcode_count":5370,"top_full_postcode_share":54.90797546012271,"active_registered_companies":9780},"metadata":{"denominator":9780,"geographyCode":"BR3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"BR4","geographyName":"BR4","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.0327868852459,"unique_full_postcodes":275,"effective_sic_sections":12.634480245208724,"top_full_postcode_count":167,"top_full_postcode_share":11.088977423638777,"active_registered_companies":1506},"metadata":{"denominator":1506,"geographyCode":"BR4","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"BR5","geographyName":"BR5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.912105688864923,"unique_full_postcodes":716,"effective_sic_sections":13.60872274023341,"top_full_postcode_count":152,"top_full_postcode_share":4.688463911165948,"active_registered_companies":3242},"metadata":{"denominator":3242,"geographyCode":"BR5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"BR6","geographyName":"BR6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.78747705486437,"unique_full_postcodes":776,"effective_sic_sections":13.206827832622395,"top_full_postcode_count":636,"top_full_postcode_share":14.263287732675487,"active_registered_companies":4459},"metadata":{"denominator":4459,"geographyCode":"BR6","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"BR7","geographyName":"BR7","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.055045871559635,"unique_full_postcodes":334,"effective_sic_sections":12.978510122496948,"top_full_postcode_count":339,"top_full_postcode_share":16.91616766467066,"active_registered_companies":2004},"metadata":{"denominator":2004,"geographyCode":"BR7","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"BR8","geographyName":"BR8","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":50,"unique_full_postcodes":4,"effective_sic_sections":4.8989794855663575,"top_full_postcode_count":5,"top_full_postcode_share":45.45454545454545,"active_registered_companies":11},"metadata":{"denominator":11,"geographyCode":"BR8","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"CM13","geographyName":"CM13","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":50,"unique_full_postcodes":1,"effective_sic_sections":2,"top_full_postcode_count":1,"top_full_postcode_share":100,"active_registered_companies":1},"metadata":{"denominator":1,"geographyCode":"CM13","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"CM14","geographyName":"CM14","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":40,"unique_full_postcodes":1,"effective_sic_sections":4.130851920890753,"top_full_postcode_count":8,"top_full_postcode_share":100,"active_registered_companies":8},"metadata":{"denominator":8,"geographyCode":"CM14","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"CR0","geographyName":"CR0","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":12.705911350285504,"unique_full_postcodes":2315,"effective_sic_sections":13.764737545897198,"top_full_postcode_count":2616,"top_full_postcode_share":12.232873509469254,"active_registered_companies":21385},"metadata":{"denominator":21385,"geographyCode":"CR0","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"CR2","geographyName":"CR2","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.821738328104816,"unique_full_postcodes":797,"effective_sic_sections":13.480411815191907,"top_full_postcode_count":758,"top_full_postcode_share":15.814729814312539,"active_registered_companies":4793},"metadata":{"denominator":4793,"geographyCode":"CR2","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"CR3","geographyName":"CR3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":23.076923076923077,"unique_full_postcodes":22,"effective_sic_sections":9.651995333760937,"top_full_postcode_count":5,"top_full_postcode_share":12.195121951219512,"active_registered_companies":41},"metadata":{"denominator":41,"geographyCode":"CR3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"CR4","geographyName":"CR4","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.490699166132135,"unique_full_postcodes":777,"effective_sic_sections":13.382696974822373,"top_full_postcode_count":473,"top_full_postcode_share":8.86930433152072,"active_registered_companies":5333},"metadata":{"denominator":5333,"geographyCode":"CR4","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"CR5","geographyName":"CR5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.703339882121806,"unique_full_postcodes":422,"effective_sic_sections":13.027218362425069,"top_full_postcode_count":115,"top_full_postcode_share":6.424581005586592,"active_registered_companies":1790},"metadata":{"denominator":1790,"geographyCode":"CR5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"CR6","geographyName":"CR6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":21.21212121212121,"unique_full_postcodes":6,"effective_sic_sections":10.014814669885437,"top_full_postcode_count":11,"top_full_postcode_share":39.285714285714285,"active_registered_companies":28},"metadata":{"denominator":28,"geographyCode":"CR6","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"CR7","geographyName":"CR7","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.012422360248447,"unique_full_postcodes":538,"effective_sic_sections":13.054960929651362,"top_full_postcode_count":67,"top_full_postcode_share":1.9596373208540507,"active_registered_companies":3419},"metadata":{"denominator":3419,"geographyCode":"CR7","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"CR8","geographyName":"CR8","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.038482989403235,"unique_full_postcodes":607,"effective_sic_sections":13.082054633700547,"top_full_postcode_count":270,"top_full_postcode_share":8.563273073263558,"active_registered_companies":3153},"metadata":{"denominator":3153,"geographyCode":"CR8","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"CR9","geographyName":"CR9","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":27.655677655677657,"unique_full_postcodes":44,"effective_sic_sections":11.816844662910507,"top_full_postcode_count":269,"top_full_postcode_share":60.997732426303855,"active_registered_companies":441},"metadata":{"denominator":441,"geographyCode":"CR9","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"DA1","geographyName":"DA1","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.35149863760218,"unique_full_postcodes":206,"effective_sic_sections":14.530686039184296,"top_full_postcode_count":45,"top_full_postcode_share":4.707112970711297,"active_registered_companies":956},"metadata":{"denominator":956,"geographyCode":"DA1","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"DA14","geographyName":"DA14","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.205134534682795,"unique_full_postcodes":336,"effective_sic_sections":11.791003063413463,"top_full_postcode_count":1235,"top_full_postcode_share":32.628797886393656,"active_registered_companies":3785},"metadata":{"denominator":3785,"geographyCode":"DA14","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"DA15","geographyName":"DA15","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.934065934065933,"unique_full_postcodes":346,"effective_sic_sections":12.727948659479257,"top_full_postcode_count":172,"top_full_postcode_share":9.440175631174535,"active_registered_companies":1822},"metadata":{"denominator":1822,"geographyCode":"DA15","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"DA16","geographyName":"DA16","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.714285714285715,"unique_full_postcodes":466,"effective_sic_sections":13.568617967455113,"top_full_postcode_count":258,"top_full_postcode_share":9.691960931630353,"active_registered_companies":2662},"metadata":{"denominator":2662,"geographyCode":"DA16","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"DA17","geographyName":"DA17","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.147705845380264,"unique_full_postcodes":261,"effective_sic_sections":13.420697337420997,"top_full_postcode_count":29,"top_full_postcode_share":2.201974183750949,"active_registered_companies":1317},"metadata":{"denominator":1317,"geographyCode":"DA17","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"DA18","geographyName":"DA18","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":12.301013024602025,"unique_full_postcodes":60,"effective_sic_sections":13.58015462668818,"top_full_postcode_count":193,"top_full_postcode_share":33.85964912280702,"active_registered_companies":570},"metadata":{"denominator":570,"geographyCode":"DA18","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"DA5","geographyName":"DA5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.808777429467085,"unique_full_postcodes":272,"effective_sic_sections":12.574262452757527,"top_full_postcode_count":647,"top_full_postcode_share":27.76824034334764,"active_registered_companies":2330},"metadata":{"denominator":2330,"geographyCode":"DA5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"DA6","geographyName":"DA6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.2332361516035,"unique_full_postcodes":188,"effective_sic_sections":12.791040068098502,"top_full_postcode_count":163,"top_full_postcode_share":13.459950454170109,"active_registered_companies":1211},"metadata":{"denominator":1211,"geographyCode":"DA6","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"DA7","geographyName":"DA7","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.007012622720897,"unique_full_postcodes":495,"effective_sic_sections":11.941026516942635,"top_full_postcode_count":52,"top_full_postcode_share":2.7182435964453737,"active_registered_companies":1913},"metadata":{"denominator":1913,"geographyCode":"DA7","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"DA8","geographyName":"DA8","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":12.642669007901668,"unique_full_postcodes":509,"effective_sic_sections":13.36132404640251,"top_full_postcode_count":137,"top_full_postcode_share":4.7668754349338895,"active_registered_companies":2874},"metadata":{"denominator":2874,"geographyCode":"DA8","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E1","geographyName":"E1","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.890889252591382,"unique_full_postcodes":1138,"effective_sic_sections":12.479861004910234,"top_full_postcode_count":6089,"top_full_postcode_share":26.555889921060665,"active_registered_companies":22929},"metadata":{"denominator":22929,"geographyCode":"E1","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E10","geographyName":"E10","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.129357635816667,"unique_full_postcodes":489,"effective_sic_sections":12.603187799733313,"top_full_postcode_count":153,"top_full_postcode_share":3.186836075817538,"active_registered_companies":4801},"metadata":{"denominator":4801,"geographyCode":"E10","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E11","geographyName":"E11","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":12.704640779326207,"unique_full_postcodes":668,"effective_sic_sections":13.615306081346843,"top_full_postcode_count":692,"top_full_postcode_share":10.652709359605911,"active_registered_companies":6496},"metadata":{"denominator":6496,"geographyCode":"E11","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E12","geographyName":"E12","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":20.90849815257553,"unique_full_postcodes":357,"effective_sic_sections":11.762959491959386,"top_full_postcode_count":208,"top_full_postcode_share":5.387205387205387,"active_registered_companies":3861},"metadata":{"denominator":3861,"geographyCode":"E12","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E13","geographyName":"E13","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":20.26630115527707,"unique_full_postcodes":494,"effective_sic_sections":12.468229307993969,"top_full_postcode_count":142,"top_full_postcode_share":3.354594849988188,"active_registered_companies":4233},"metadata":{"denominator":4233,"geographyCode":"E13","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E14","geographyName":"E14","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.78994283886957,"unique_full_postcodes":1454,"effective_sic_sections":12.981901861455361,"top_full_postcode_count":2647,"top_full_postcode_share":12.231412596460423,"active_registered_companies":21641},"metadata":{"denominator":21641,"geographyCode":"E14","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E15","geographyName":"E15","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.362702092994109,"unique_full_postcodes":682,"effective_sic_sections":13.342240600949173,"top_full_postcode_count":416,"top_full_postcode_share":6.307808946171342,"active_registered_companies":6595},"metadata":{"denominator":6595,"geographyCode":"E15","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E16","geographyName":"E16","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.732842186894144,"unique_full_postcodes":855,"effective_sic_sections":12.569066827283072,"top_full_postcode_count":1878,"top_full_postcode_share":21.467764060356654,"active_registered_companies":8748},"metadata":{"denominator":8748,"geographyCode":"E16","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E17","geographyName":"E17","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.75188972876834,"unique_full_postcodes":1232,"effective_sic_sections":12.54663381578121,"top_full_postcode_count":3903,"top_full_postcode_share":26.55644008981425,"active_registered_companies":14697},"metadata":{"denominator":14697,"geographyCode":"E17","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E18","geographyName":"E18","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":21.6343882853094,"unique_full_postcodes":298,"effective_sic_sections":11.686742545835685,"top_full_postcode_count":687,"top_full_postcode_share":18.32,"active_registered_companies":3750},"metadata":{"denominator":3750,"geographyCode":"E18","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E1W","geographyName":"E1W","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.00465983224604,"unique_full_postcodes":261,"effective_sic_sections":12.237945493049455,"top_full_postcode_count":1936,"top_full_postcode_share":48.2913444749314,"active_registered_companies":4009},"metadata":{"denominator":4009,"geographyCode":"E1W","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E2","geographyName":"E2","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.949961508852963,"unique_full_postcodes":709,"effective_sic_sections":13.09882204663917,"top_full_postcode_count":359,"top_full_postcode_share":6.421033804328386,"active_registered_companies":5591},"metadata":{"denominator":5591,"geographyCode":"E2","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E20","geographyName":"E20","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.636363636363635,"unique_full_postcodes":178,"effective_sic_sections":13.104898206465522,"top_full_postcode_count":589,"top_full_postcode_share":34.831460674157306,"active_registered_companies":1691},"metadata":{"denominator":1691,"geographyCode":"E20","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E22","geographyName":"E22","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":26.08695652173913,"unique_full_postcodes":4,"effective_sic_sections":8.502748980072734,"top_full_postcode_count":5,"top_full_postcode_share":35.714285714285715,"active_registered_companies":14},"metadata":{"denominator":14,"geographyCode":"E22","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E3","geographyName":"E3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.99902095163501,"unique_full_postcodes":825,"effective_sic_sections":13.046357678854768,"top_full_postcode_count":156,"top_full_postcode_share":3.7116345467523195,"active_registered_companies":4203},"metadata":{"denominator":4203,"geographyCode":"E3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E4","geographyName":"E4","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.453860640301318,"unique_full_postcodes":749,"effective_sic_sections":13.298719168383577,"top_full_postcode_count":355,"top_full_postcode_share":6.287637265320581,"active_registered_companies":5646},"metadata":{"denominator":5646,"geographyCode":"E4","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E5","geographyName":"E5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":38.55481727574751,"unique_full_postcodes":524,"effective_sic_sections":9.389918131699329,"top_full_postcode_count":580,"top_full_postcode_share":10.695187165775401,"active_registered_companies":5423},"metadata":{"denominator":5423,"geographyCode":"E5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E6","geographyName":"E6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":33.76479699081757,"unique_full_postcodes":795,"effective_sic_sections":9.467181246623584,"top_full_postcode_count":7906,"top_full_postcode_share":53.08890679559495,"active_registered_companies":14892},"metadata":{"denominator":14892,"geographyCode":"E6","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E7","geographyName":"E7","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":20.821419287756694,"unique_full_postcodes":477,"effective_sic_sections":12.144159119260788,"top_full_postcode_count":675,"top_full_postcode_share":10.623229461756374,"active_registered_companies":6354},"metadata":{"denominator":6354,"geographyCode":"E7","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E8","geographyName":"E8","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":20.365990290053528,"unique_full_postcodes":565,"effective_sic_sections":12.147032943208773,"top_full_postcode_count":1224,"top_full_postcode_share":17.710895673563883,"active_registered_companies":6911},"metadata":{"denominator":6911,"geographyCode":"E8","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"E9","geographyName":"E9","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.381591562799617,"unique_full_postcodes":499,"effective_sic_sections":13.268093310385556,"top_full_postcode_count":119,"top_full_postcode_share":4.538520213577422,"active_registered_companies":2622},"metadata":{"denominator":2622,"geographyCode":"E9","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC1A","geographyName":"EC1A","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":22.600812753985622,"unique_full_postcodes":99,"effective_sic_sections":10.802691938708673,"top_full_postcode_count":643,"top_full_postcode_share":18.530259365994237,"active_registered_companies":3470},"metadata":{"denominator":3470,"geographyCode":"EC1A","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC1M","geographyName":"EC1M","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.5214626391097,"unique_full_postcodes":141,"effective_sic_sections":12.633823085951466,"top_full_postcode_count":645,"top_full_postcode_share":17.25521669341894,"active_registered_companies":3738},"metadata":{"denominator":3738,"geographyCode":"EC1M","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC1N","geographyName":"EC1N","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.01043436059209,"unique_full_postcodes":141,"effective_sic_sections":12.440625382997807,"top_full_postcode_count":622,"top_full_postcode_share":16.359810625986324,"active_registered_companies":3802},"metadata":{"denominator":3802,"geographyCode":"EC1N","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC1R","geographyName":"EC1R","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.584305408271472,"unique_full_postcodes":200,"effective_sic_sections":11.617421412825333,"top_full_postcode_count":1604,"top_full_postcode_share":46.3316002310803,"active_registered_companies":3462},"metadata":{"denominator":3462,"geographyCode":"EC1R","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC1V","geographyName":"EC1V","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.701304048003788,"unique_full_postcodes":375,"effective_sic_sections":11.401511235423532,"top_full_postcode_count":71698,"top_full_postcode_share":93.15057814733014,"active_registered_companies":76970},"metadata":{"denominator":76970,"geographyCode":"EC1V","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC1Y","geographyName":"EC1Y","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.561959654178676,"unique_full_postcodes":134,"effective_sic_sections":12.985315596152548,"top_full_postcode_count":107,"top_full_postcode_share":7.943578322197475,"active_registered_companies":1347},"metadata":{"denominator":1347,"geographyCode":"EC1Y","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC2A","geographyName":"EC2A","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.935685605656825,"unique_full_postcodes":280,"effective_sic_sections":11.33076955763541,"top_full_postcode_count":28730,"top_full_postcode_share":61.09646138142225,"active_registered_companies":47024},"metadata":{"denominator":47024,"geographyCode":"EC2A","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC2M","geographyName":"EC2M","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":27.138877835256665,"unique_full_postcodes":136,"effective_sic_sections":10.220886069432275,"top_full_postcode_count":553,"top_full_postcode_share":10.970045625867883,"active_registered_companies":5041},"metadata":{"denominator":5041,"geographyCode":"EC2M","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC2N","geographyName":"EC2N","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":22.375112174693392,"unique_full_postcodes":51,"effective_sic_sections":10.732936538710469,"top_full_postcode_count":620,"top_full_postcode_share":19.71383147853736,"active_registered_companies":3145},"metadata":{"denominator":3145,"geographyCode":"EC2N","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC2P","geographyName":"EC2P","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":33.33333333333333,"unique_full_postcodes":9,"effective_sic_sections":6.557819694179409,"top_full_postcode_count":55,"top_full_postcode_share":65.47619047619048,"active_registered_companies":84},"metadata":{"denominator":84,"geographyCode":"EC2P","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC2R","geographyName":"EC2R","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":21.913236929922135,"unique_full_postcodes":62,"effective_sic_sections":10.244146541165971,"top_full_postcode_count":876,"top_full_postcode_share":31.704668838219323,"active_registered_companies":2763},"metadata":{"denominator":2763,"geographyCode":"EC2R","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC2V","geographyName":"EC2V","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":20.774647887323944,"unique_full_postcodes":97,"effective_sic_sections":11.3706975399528,"top_full_postcode_count":724,"top_full_postcode_share":13.542835765057987,"active_registered_companies":5346},"metadata":{"denominator":5346,"geographyCode":"EC2V","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC2Y","geographyName":"EC2Y","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.253121452894437,"unique_full_postcodes":85,"effective_sic_sections":12.350762856611297,"top_full_postcode_count":1307,"top_full_postcode_share":49.283559577677224,"active_registered_companies":2652},"metadata":{"denominator":2652,"geographyCode":"EC2Y","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC3A","geographyName":"EC3A","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":38.57205050065303,"unique_full_postcodes":64,"effective_sic_sections":8.91489922472954,"top_full_postcode_count":570,"top_full_postcode_share":25.187803800265137,"active_registered_companies":2263},"metadata":{"denominator":2263,"geographyCode":"EC3A","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC3M","geographyName":"EC3M","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":29.2806484295846,"unique_full_postcodes":65,"effective_sic_sections":9.793559965481094,"top_full_postcode_count":466,"top_full_postcode_share":11.857506361323155,"active_registered_companies":3930},"metadata":{"denominator":3930,"geographyCode":"EC3M","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC3N","geographyName":"EC3N","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":25.828377230246392,"unique_full_postcodes":60,"effective_sic_sections":10.805908509445933,"top_full_postcode_count":114,"top_full_postcode_share":9.956331877729257,"active_registered_companies":1145},"metadata":{"denominator":1145,"geographyCode":"EC3N","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC3P","geographyName":"EC3P","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":25,"unique_full_postcodes":5,"effective_sic_sections":4,"top_full_postcode_count":19,"top_full_postcode_share":82.6086956521739,"active_registered_companies":23},"metadata":{"denominator":23,"geographyCode":"EC3P","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC3R","geographyName":"EC3R","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":27.626970227670753,"unique_full_postcodes":54,"effective_sic_sections":10.409295823510803,"top_full_postcode_count":587,"top_full_postcode_share":27.79356060606061,"active_registered_companies":2112},"metadata":{"denominator":2112,"geographyCode":"EC3R","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC3V","geographyName":"EC3V","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":26.604294110591344,"unique_full_postcodes":70,"effective_sic_sections":9.60352309856037,"top_full_postcode_count":1978,"top_full_postcode_share":21.460345014646848,"active_registered_companies":9217},"metadata":{"denominator":9217,"geographyCode":"EC3V","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC4A","geographyName":"EC4A","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.715899218071243,"unique_full_postcodes":111,"effective_sic_sections":12.177573221029371,"top_full_postcode_count":859,"top_full_postcode_share":15.136563876651982,"active_registered_companies":5675},"metadata":{"denominator":5675,"geographyCode":"EC4A","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC4M","geographyName":"EC4M","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.20537046245649,"unique_full_postcodes":78,"effective_sic_sections":12.181699440309458,"top_full_postcode_count":1357,"top_full_postcode_share":22.673350041771094,"active_registered_companies":5985},"metadata":{"denominator":5985,"geographyCode":"EC4M","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC4N","geographyName":"EC4N","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":22.18853362734289,"unique_full_postcodes":53,"effective_sic_sections":10.604690761709476,"top_full_postcode_count":886,"top_full_postcode_share":24.866685377490878,"active_registered_companies":3563},"metadata":{"denominator":3563,"geographyCode":"EC4N","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC4P","geographyName":"EC4P","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":42.857142857142854,"unique_full_postcodes":4,"effective_sic_sections":2.729838563103603,"top_full_postcode_count":5,"top_full_postcode_share":31.25,"active_registered_companies":16},"metadata":{"denominator":16,"geographyCode":"EC4P","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC4R","geographyName":"EC4R","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.554327808471456,"unique_full_postcodes":56,"effective_sic_sections":10.777970506730504,"top_full_postcode_count":637,"top_full_postcode_share":28.603502469690167,"active_registered_companies":2227},"metadata":{"denominator":2227,"geographyCode":"EC4R","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC4V","geographyName":"EC4V","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.384649709950914,"unique_full_postcodes":84,"effective_sic_sections":11.11972044982052,"top_full_postcode_count":994,"top_full_postcode_share":43.48206474190726,"active_registered_companies":2286},"metadata":{"denominator":2286,"geographyCode":"EC4V","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EC4Y","geographyName":"EC4Y","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":22.174226061915046,"unique_full_postcodes":91,"effective_sic_sections":11.744484149298993,"top_full_postcode_count":422,"top_full_postcode_share":29.305555555555557,"active_registered_companies":1440},"metadata":{"denominator":1440,"geographyCode":"EC4Y","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EN1","geographyName":"EN1","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.022765802857833,"unique_full_postcodes":671,"effective_sic_sections":13.206789293805747,"top_full_postcode_count":245,"top_full_postcode_share":6.803665648430991,"active_registered_companies":3601},"metadata":{"denominator":3601,"geographyCode":"EN1","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EN2","geographyName":"EN2","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.327342747111683,"unique_full_postcodes":604,"effective_sic_sections":13.489291518018042,"top_full_postcode_count":302,"top_full_postcode_share":8.621181844133599,"active_registered_companies":3503},"metadata":{"denominator":3503,"geographyCode":"EN2","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EN3","geographyName":"EN3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.688269604666235,"unique_full_postcodes":807,"effective_sic_sections":12.915533277851457,"top_full_postcode_count":492,"top_full_postcode_share":9.156895589056393,"active_registered_companies":5373},"metadata":{"denominator":5373,"geographyCode":"EN3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EN4","geographyName":"EN4","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.580554250821983,"unique_full_postcodes":447,"effective_sic_sections":13.227617736934207,"top_full_postcode_count":555,"top_full_postcode_share":14.367072223660369,"active_registered_companies":3863},"metadata":{"denominator":3863,"geographyCode":"EN4","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EN5","geographyName":"EN5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.515407344871253,"unique_full_postcodes":724,"effective_sic_sections":12.904141979803015,"top_full_postcode_count":1593,"top_full_postcode_share":18.3991683991684,"active_registered_companies":8658},"metadata":{"denominator":8658,"geographyCode":"EN5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"EN8","geographyName":"EN8","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.696969696969695,"unique_full_postcodes":19,"effective_sic_sections":9.901508436177053,"top_full_postcode_count":9,"top_full_postcode_share":15.517241379310345,"active_registered_companies":58},"metadata":{"denominator":58,"geographyCode":"EN8","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"HA0","geographyName":"HA0","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":21.494556252062026,"unique_full_postcodes":696,"effective_sic_sections":12.02893423156319,"top_full_postcode_count":291,"top_full_postcode_share":5.609097918272937,"active_registered_companies":5188},"metadata":{"denominator":5188,"geographyCode":"HA0","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"HA1","geographyName":"HA1","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.547765917502545,"unique_full_postcodes":755,"effective_sic_sections":12.879661317886871,"top_full_postcode_count":1669,"top_full_postcode_share":9.987433427083957,"active_registered_companies":16711},"metadata":{"denominator":16711,"geographyCode":"HA1","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"HA2","geographyName":"HA2","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.29714285714286,"unique_full_postcodes":833,"effective_sic_sections":12.344786135541874,"top_full_postcode_count":443,"top_full_postcode_share":5.722774835292598,"active_registered_companies":7741},"metadata":{"denominator":7741,"geographyCode":"HA2","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"HA3","geographyName":"HA3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.882782310004295,"unique_full_postcodes":1079,"effective_sic_sections":12.182824074894436,"top_full_postcode_count":897,"top_full_postcode_share":8.79325556318008,"active_registered_companies":10201},"metadata":{"denominator":10201,"geographyCode":"HA3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"HA4","geographyName":"HA4","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.564621613204608,"unique_full_postcodes":831,"effective_sic_sections":12.591816199454577,"top_full_postcode_count":5902,"top_full_postcode_share":53.664302600472816,"active_registered_companies":10998},"metadata":{"denominator":10998,"geographyCode":"HA4","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"HA5","geographyName":"HA5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.483676777031718,"unique_full_postcodes":838,"effective_sic_sections":12.15239447897582,"top_full_postcode_count":637,"top_full_postcode_share":8.04902704068739,"active_registered_companies":7914},"metadata":{"denominator":7914,"geographyCode":"HA5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"HA6","geographyName":"HA6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.84244214672575,"unique_full_postcodes":386,"effective_sic_sections":12.518497987672578,"top_full_postcode_count":742,"top_full_postcode_share":19.908773812718003,"active_registered_companies":3727},"metadata":{"denominator":3727,"geographyCode":"HA6","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"HA7","geographyName":"HA7","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.462359850507205,"unique_full_postcodes":675,"effective_sic_sections":12.68570739006477,"top_full_postcode_count":2252,"top_full_postcode_share":26.70777988614801,"active_registered_companies":8432},"metadata":{"denominator":8432,"geographyCode":"HA7","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"HA8","geographyName":"HA8","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.84354310935241,"unique_full_postcodes":1112,"effective_sic_sections":12.573346449231419,"top_full_postcode_count":1192,"top_full_postcode_share":10.10683398338138,"active_registered_companies":11794},"metadata":{"denominator":11794,"geographyCode":"HA8","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"HA9","geographyName":"HA9","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.197655833777304,"unique_full_postcodes":832,"effective_sic_sections":12.700993046182122,"top_full_postcode_count":572,"top_full_postcode_share":6.980717598242617,"active_registered_companies":8194},"metadata":{"denominator":8194,"geographyCode":"HA9","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"IG1","geographyName":"IG1","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":20.012100026888948,"unique_full_postcodes":765,"effective_sic_sections":11.98083956807747,"top_full_postcode_count":504,"top_full_postcode_share":3.9675667165236557,"active_registered_companies":12703},"metadata":{"denominator":12703,"geographyCode":"IG1","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"IG11","geographyName":"IG11","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.000696725390664,"unique_full_postcodes":885,"effective_sic_sections":12.51751308309227,"top_full_postcode_count":264,"top_full_postcode_share":3.2222629073599416,"active_registered_companies":8193},"metadata":{"denominator":8193,"geographyCode":"IG11","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"IG2","geographyName":"IG2","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.745845552297165,"unique_full_postcodes":368,"effective_sic_sections":11.909069533592245,"top_full_postcode_count":461,"top_full_postcode_share":8.423168280650465,"active_registered_companies":5473},"metadata":{"denominator":5473,"geographyCode":"IG2","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"IG3","geographyName":"IG3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.193798449612405,"unique_full_postcodes":438,"effective_sic_sections":11.521108569522045,"top_full_postcode_count":313,"top_full_postcode_share":5.578328283728391,"active_registered_companies":5611},"metadata":{"denominator":5611,"geographyCode":"IG3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"IG4","geographyName":"IG4","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":23.59357060849598,"unique_full_postcodes":125,"effective_sic_sections":10.936660709663709,"top_full_postcode_count":276,"top_full_postcode_share":17.726396917148364,"active_registered_companies":1557},"metadata":{"denominator":1557,"geographyCode":"IG4","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"IG5","geographyName":"IG5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.678519240136385,"unique_full_postcodes":208,"effective_sic_sections":11.69043361216119,"top_full_postcode_count":188,"top_full_postcode_share":10.479375696767,"active_registered_companies":1794},"metadata":{"denominator":1794,"geographyCode":"IG5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"IG6","geographyName":"IG6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":21.785093001471967,"unique_full_postcodes":473,"effective_sic_sections":11.620773876401511,"top_full_postcode_count":1619,"top_full_postcode_share":25.261351224840066,"active_registered_companies":6409},"metadata":{"denominator":6409,"geographyCode":"IG6","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"IG7","geographyName":"IG7","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":22.146892655367232,"unique_full_postcodes":151,"effective_sic_sections":11.840837657329363,"top_full_postcode_count":32,"top_full_postcode_share":4.177545691906006,"active_registered_companies":766},"metadata":{"denominator":766,"geographyCode":"IG7","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"IG8","geographyName":"IG8","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.78582327645998,"unique_full_postcodes":588,"effective_sic_sections":12.721737565810216,"top_full_postcode_count":1482,"top_full_postcode_share":22.598353156450138,"active_registered_companies":6558},"metadata":{"denominator":6558,"geographyCode":"IG8","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"IG9","geographyName":"IG9","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.791411042944784,"unique_full_postcodes":22,"effective_sic_sections":12.304758479049909,"top_full_postcode_count":39,"top_full_postcode_share":26.89655172413793,"active_registered_companies":145},"metadata":{"denominator":145,"geographyCode":"IG9","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"KT1","geographyName":"KT1","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.84209432786204,"unique_full_postcodes":430,"effective_sic_sections":12.77776455327919,"top_full_postcode_count":987,"top_full_postcode_share":22.78393351800554,"active_registered_companies":4332},"metadata":{"denominator":4332,"geographyCode":"KT1","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"KT17","geographyName":"KT17","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":24.242424242424242,"unique_full_postcodes":7,"effective_sic_sections":7.408904907415015,"top_full_postcode_count":9,"top_full_postcode_share":28.125,"active_registered_companies":32},"metadata":{"denominator":32,"geographyCode":"KT17","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"KT19","geographyName":"KT19","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":42.857142857142854,"unique_full_postcodes":2,"effective_sic_sections":3.5859888270569535,"top_full_postcode_count":4,"top_full_postcode_share":80,"active_registered_companies":5},"metadata":{"denominator":5,"geographyCode":"KT19","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"KT2","geographyName":"KT2","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.339285714285715,"unique_full_postcodes":514,"effective_sic_sections":13.161502017662672,"top_full_postcode_count":491,"top_full_postcode_share":16.482040953340046,"active_registered_companies":2979},"metadata":{"denominator":2979,"geographyCode":"KT2","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"KT3","geographyName":"KT3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.586866973588563,"unique_full_postcodes":616,"effective_sic_sections":13.41182787317975,"top_full_postcode_count":237,"top_full_postcode_share":6.574202496532594,"active_registered_companies":3605},"metadata":{"denominator":3605,"geographyCode":"KT3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"KT4","geographyName":"KT4","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.344503233392123,"unique_full_postcodes":314,"effective_sic_sections":12.581748700654387,"top_full_postcode_count":79,"top_full_postcode_share":5.309139784946237,"active_registered_companies":1488},"metadata":{"denominator":1488,"geographyCode":"KT4","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"KT5","geographyName":"KT5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.779927448609431,"unique_full_postcodes":283,"effective_sic_sections":13.418052484861391,"top_full_postcode_count":183,"top_full_postcode_share":12.440516655336506,"active_registered_companies":1471},"metadata":{"denominator":1471,"geographyCode":"KT5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"KT6","geographyName":"KT6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.860284605433375,"unique_full_postcodes":460,"effective_sic_sections":12.955062114099993,"top_full_postcode_count":211,"top_full_postcode_share":6.137289121582315,"active_registered_companies":3438},"metadata":{"denominator":3438,"geographyCode":"KT6","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"KT8","geographyName":"KT8","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":20.618556701030926,"unique_full_postcodes":13,"effective_sic_sections":12.220462830503594,"top_full_postcode_count":12,"top_full_postcode_share":14.285714285714285,"active_registered_companies":84},"metadata":{"denominator":84,"geographyCode":"KT8","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"KT9","geographyName":"KT9","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.432098765432098,"unique_full_postcodes":303,"effective_sic_sections":13.4545698794016,"top_full_postcode_count":299,"top_full_postcode_share":15.997859818084537,"active_registered_companies":1869},"metadata":{"denominator":1869,"geographyCode":"KT9","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N1","geographyName":"N1","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.74961016555522,"unique_full_postcodes":1557,"effective_sic_sections":12.55472057177736,"top_full_postcode_count":36374,"top_full_postcode_share":74.83284300615138,"active_registered_companies":48607},"metadata":{"denominator":48607,"geographyCode":"N1","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N10","geographyName":"N10","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":27.587272165585418,"unique_full_postcodes":399,"effective_sic_sections":11.143695163065008,"top_full_postcode_count":859,"top_full_postcode_share":29.448063078505314,"active_registered_companies":2917},"metadata":{"denominator":2917,"geographyCode":"N10","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N11","geographyName":"N11","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.840749943528348,"unique_full_postcodes":458,"effective_sic_sections":13.3164546165846,"top_full_postcode_count":1010,"top_full_postcode_share":26.432870976184248,"active_registered_companies":3821},"metadata":{"denominator":3821,"geographyCode":"N11","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N12","geographyName":"N12","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.838958534233367,"unique_full_postcodes":546,"effective_sic_sections":13.13593077233169,"top_full_postcode_count":765,"top_full_postcode_share":10.080379496639875,"active_registered_companies":7589},"metadata":{"denominator":7589,"geographyCode":"N12","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N13","geographyName":"N13","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.63136270257932,"unique_full_postcodes":442,"effective_sic_sections":12.635259667760835,"top_full_postcode_count":1974,"top_full_postcode_share":25.99420595206742,"active_registered_companies":7594},"metadata":{"denominator":7594,"geographyCode":"N13","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N14","geographyName":"N14","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.03204694199955,"unique_full_postcodes":539,"effective_sic_sections":12.725327022368031,"top_full_postcode_count":1315,"top_full_postcode_share":17.364320612703025,"active_registered_companies":7573},"metadata":{"denominator":7573,"geographyCode":"N14","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N15","geographyName":"N15","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":38.6391549987718,"unique_full_postcodes":581,"effective_sic_sections":9.49284371656331,"top_full_postcode_count":732,"top_full_postcode_share":10.01231021748051,"active_registered_companies":7311},"metadata":{"denominator":7311,"geographyCode":"N15","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N16","geographyName":"N16","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":49.33534526119135,"unique_full_postcodes":890,"effective_sic_sections":7.257224774059972,"top_full_postcode_count":879,"top_full_postcode_share":6.989503816793893,"active_registered_companies":12576},"metadata":{"denominator":12576,"geographyCode":"N16","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N17","geographyName":"N17","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.19159456118665,"unique_full_postcodes":844,"effective_sic_sections":13.49385936096474,"top_full_postcode_count":948,"top_full_postcode_share":13.175816539263376,"active_registered_companies":7195},"metadata":{"denominator":7195,"geographyCode":"N17","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N18","geographyName":"N18","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.07089552238806,"unique_full_postcodes":454,"effective_sic_sections":13.119929355712536,"top_full_postcode_count":211,"top_full_postcode_share":7.7716390423572745,"active_registered_companies":2715},"metadata":{"denominator":2715,"geographyCode":"N18","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N19","geographyName":"N19","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.341846758349705,"unique_full_postcodes":465,"effective_sic_sections":13.72193654621664,"top_full_postcode_count":184,"top_full_postcode_share":7.4074074074074066,"active_registered_companies":2484},"metadata":{"denominator":2484,"geographyCode":"N19","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N1C","geographyName":"N1C","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.88582302568982,"unique_full_postcodes":49,"effective_sic_sections":10.255414780684623,"top_full_postcode_count":357,"top_full_postcode_share":35.48707753479125,"active_registered_companies":1006},"metadata":{"denominator":1006,"geographyCode":"N1C","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N1P","geographyName":"N1P","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":100,"unique_full_postcodes":1,"effective_sic_sections":1,"top_full_postcode_count":1,"top_full_postcode_share":100,"active_registered_companies":1},"metadata":{"denominator":1,"geographyCode":"N1P","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N2","geographyName":"N2","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.439372325249643,"unique_full_postcodes":383,"effective_sic_sections":12.97750581573151,"top_full_postcode_count":214,"top_full_postcode_share":8.594377510040161,"active_registered_companies":2490},"metadata":{"denominator":2490,"geographyCode":"N2","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N20","geographyName":"N20","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.09919261822376,"unique_full_postcodes":410,"effective_sic_sections":12.900386959790733,"top_full_postcode_count":704,"top_full_postcode_share":21.92463407038306,"active_registered_companies":3211},"metadata":{"denominator":3211,"geographyCode":"N20","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N21","geographyName":"N21","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":22.61410788381743,"unique_full_postcodes":422,"effective_sic_sections":12.301620677026552,"top_full_postcode_count":2401,"top_full_postcode_share":48.85045778229908,"active_registered_companies":4915},"metadata":{"denominator":4915,"geographyCode":"N21","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N22","geographyName":"N22","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.458104933437744,"unique_full_postcodes":558,"effective_sic_sections":13.3348553467516,"top_full_postcode_count":863,"top_full_postcode_share":15.150983146067414,"active_registered_companies":5696},"metadata":{"denominator":5696,"geographyCode":"N22","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N3","geographyName":"N3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.153873616565512,"unique_full_postcodes":494,"effective_sic_sections":12.065891669376107,"top_full_postcode_count":1994,"top_full_postcode_share":13.041203400915633,"active_registered_companies":15290},"metadata":{"denominator":15290,"geographyCode":"N3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N4","geographyName":"N4","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.168141592920353,"unique_full_postcodes":678,"effective_sic_sections":13.334243451440292,"top_full_postcode_count":369,"top_full_postcode_share":7.469635627530365,"active_registered_companies":4940},"metadata":{"denominator":4940,"geographyCode":"N4","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N5","geographyName":"N5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":22.96899751074904,"unique_full_postcodes":321,"effective_sic_sections":11.616428910433532,"top_full_postcode_count":1570,"top_full_postcode_share":48.60681114551084,"active_registered_companies":3230},"metadata":{"denominator":3230,"geographyCode":"N5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N6","geographyName":"N6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.233179250128405,"unique_full_postcodes":363,"effective_sic_sections":12.716871640211995,"top_full_postcode_count":209,"top_full_postcode_share":11.285097192224622,"active_registered_companies":1852},"metadata":{"denominator":1852,"geographyCode":"N6","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N7","geographyName":"N7","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.346724717989314,"unique_full_postcodes":652,"effective_sic_sections":13.408159047277122,"top_full_postcode_count":366,"top_full_postcode_share":8.386801099908341,"active_registered_companies":4364},"metadata":{"denominator":4364,"geographyCode":"N7","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N8","geographyName":"N8","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.412058508740634,"unique_full_postcodes":564,"effective_sic_sections":12.819962099161781,"top_full_postcode_count":1038,"top_full_postcode_share":21.829652996845425,"active_registered_companies":4755},"metadata":{"denominator":4755,"geographyCode":"N8","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"N9","geographyName":"N9","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.861604133902492,"unique_full_postcodes":697,"effective_sic_sections":12.7331445492372,"top_full_postcode_count":365,"top_full_postcode_share":9.564989517819706,"active_registered_companies":3816},"metadata":{"denominator":3816,"geographyCode":"N9","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"NW1","geographyName":"NW1","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.473666966991562,"unique_full_postcodes":1096,"effective_sic_sections":13.83079496414759,"top_full_postcode_count":971,"top_full_postcode_share":8.63034396942494,"active_registered_companies":11251},"metadata":{"denominator":11251,"geographyCode":"NW1","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"NW10","geographyName":"NW10","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.597172908153013,"unique_full_postcodes":1460,"effective_sic_sections":13.295926286832577,"top_full_postcode_count":579,"top_full_postcode_share":4.5177902621722845,"active_registered_companies":12816},"metadata":{"denominator":12816,"geographyCode":"NW10","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"NW11","geographyName":"NW11","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":36.362761143737366,"unique_full_postcodes":621,"effective_sic_sections":9.71398848185839,"top_full_postcode_count":1723,"top_full_postcode_share":17.706299455348883,"active_registered_companies":9731},"metadata":{"denominator":9731,"geographyCode":"NW11","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"NW1W","geographyName":"NW1W","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":40,"unique_full_postcodes":1,"effective_sic_sections":3.7892914162759954,"top_full_postcode_count":3,"top_full_postcode_share":100,"active_registered_companies":3},"metadata":{"denominator":3,"geographyCode":"NW1W","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"NW2","geographyName":"NW2","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.921787709497206,"unique_full_postcodes":1025,"effective_sic_sections":12.928722413744655,"top_full_postcode_count":607,"top_full_postcode_share":8.328759604829857,"active_registered_companies":7288},"metadata":{"denominator":7288,"geographyCode":"NW2","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"NW3","geographyName":"NW3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.50161344163792,"unique_full_postcodes":935,"effective_sic_sections":12.767830463939735,"top_full_postcode_count":1219,"top_full_postcode_share":14.562178951140844,"active_registered_companies":8371},"metadata":{"denominator":8371,"geographyCode":"NW3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"NW4","geographyName":"NW4","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":23.639905384722415,"unique_full_postcodes":580,"effective_sic_sections":12.147260565933358,"top_full_postcode_count":866,"top_full_postcode_share":13.409724372870857,"active_registered_companies":6458},"metadata":{"denominator":6458,"geographyCode":"NW4","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"NW5","geographyName":"NW5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.094827586206895,"unique_full_postcodes":469,"effective_sic_sections":13.793930010007157,"top_full_postcode_count":52,"top_full_postcode_share":2.515723270440252,"active_registered_companies":2067},"metadata":{"denominator":2067,"geographyCode":"NW5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"NW6","geographyName":"NW6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.31986944104447,"unique_full_postcodes":997,"effective_sic_sections":13.384214346924727,"top_full_postcode_count":985,"top_full_postcode_share":11.205915813424346,"active_registered_companies":8790},"metadata":{"denominator":8790,"geographyCode":"NW6","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"NW7","geographyName":"NW7","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.5275846082522,"unique_full_postcodes":573,"effective_sic_sections":13.106160490340304,"top_full_postcode_count":346,"top_full_postcode_share":8.949818934299017,"active_registered_companies":3866},"metadata":{"denominator":3866,"geographyCode":"NW7","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"NW8","geographyName":"NW8","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.105581058226623,"unique_full_postcodes":587,"effective_sic_sections":12.638269139151056,"top_full_postcode_count":875,"top_full_postcode_share":22.792393852565773,"active_registered_companies":3839},"metadata":{"denominator":3839,"geographyCode":"NW8","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"NW9","geographyName":"NW9","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.427302996670367,"unique_full_postcodes":1151,"effective_sic_sections":12.823646305399336,"top_full_postcode_count":939,"top_full_postcode_share":9.922857444784952,"active_registered_companies":9463},"metadata":{"denominator":9463,"geographyCode":"NW9","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"RM1","geographyName":"RM1","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.42360332061925,"unique_full_postcodes":393,"effective_sic_sections":13.208964649554943,"top_full_postcode_count":809,"top_full_postcode_share":20.58000508776393,"active_registered_companies":3931},"metadata":{"denominator":3931,"geographyCode":"RM1","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"RM10","geographyName":"RM10","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.0313986679353,"unique_full_postcodes":491,"effective_sic_sections":12.46760976984614,"top_full_postcode_count":143,"top_full_postcode_share":4.0625,"active_registered_companies":3520},"metadata":{"denominator":3520,"geographyCode":"RM10","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"RM11","geographyName":"RM11","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.8651991095721,"unique_full_postcodes":468,"effective_sic_sections":12.89015789843666,"top_full_postcode_count":426,"top_full_postcode_share":11.491772322632857,"active_registered_companies":3707},"metadata":{"denominator":3707,"geographyCode":"RM11","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"RM12","geographyName":"RM12","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.346545866364668,"unique_full_postcodes":450,"effective_sic_sections":12.530424430270717,"top_full_postcode_count":582,"top_full_postcode_share":18.319169027384323,"active_registered_companies":3177},"metadata":{"denominator":3177,"geographyCode":"RM12","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"RM13","geographyName":"RM13","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.356885364095168,"unique_full_postcodes":500,"effective_sic_sections":13.048714035503185,"top_full_postcode_count":495,"top_full_postcode_share":14.066496163682865,"active_registered_companies":3519},"metadata":{"denominator":3519,"geographyCode":"RM13","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"RM14","geographyName":"RM14","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.183977643223102,"unique_full_postcodes":400,"effective_sic_sections":13.15782600976389,"top_full_postcode_count":288,"top_full_postcode_share":14.37125748502994,"active_registered_companies":2004},"metadata":{"denominator":2004,"geographyCode":"RM14","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"RM15","geographyName":"RM15","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":38.46153846153847,"unique_full_postcodes":1,"effective_sic_sections":6.292111764414632,"top_full_postcode_count":11,"top_full_postcode_share":100,"active_registered_companies":11},"metadata":{"denominator":11,"geographyCode":"RM15","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"RM2","geographyName":"RM2","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.783269961977187,"unique_full_postcodes":215,"effective_sic_sections":12.629926662291242,"top_full_postcode_count":113,"top_full_postcode_share":9.408825978351373,"active_registered_companies":1201},"metadata":{"denominator":1201,"geographyCode":"RM2","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"RM3","geographyName":"RM3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":21.05135658914729,"unique_full_postcodes":674,"effective_sic_sections":12.384207751834625,"top_full_postcode_count":227,"top_full_postcode_share":6.236263736263736,"active_registered_companies":3640},"metadata":{"denominator":3640,"geographyCode":"RM3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"RM4","geographyName":"RM4","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.367346938775512,"unique_full_postcodes":17,"effective_sic_sections":11.722482193864767,"top_full_postcode_count":14,"top_full_postcode_share":15.555555555555555,"active_registered_companies":90},"metadata":{"denominator":90,"geographyCode":"RM4","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"RM5","geographyName":"RM5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":22.39685658153242,"unique_full_postcodes":299,"effective_sic_sections":11.79907112423157,"top_full_postcode_count":34,"top_full_postcode_share":2.5544703230653645,"active_registered_companies":1331},"metadata":{"denominator":1331,"geographyCode":"RM5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"RM6","geographyName":"RM6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":24.549433573635426,"unique_full_postcodes":481,"effective_sic_sections":11.501621002712202,"top_full_postcode_count":2885,"top_full_postcode_share":44.43246573232712,"active_registered_companies":6493},"metadata":{"denominator":6493,"geographyCode":"RM6","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"RM7","geographyName":"RM7","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.26357022943481,"unique_full_postcodes":424,"effective_sic_sections":12.544386515411794,"top_full_postcode_count":353,"top_full_postcode_share":11.468486029889538,"active_registered_companies":3078},"metadata":{"denominator":3078,"geographyCode":"RM7","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"RM8","geographyName":"RM8","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.265827762485255,"unique_full_postcodes":537,"effective_sic_sections":12.151486601561924,"top_full_postcode_count":160,"top_full_postcode_share":3.77269511907569,"active_registered_companies":4241},"metadata":{"denominator":4241,"geographyCode":"RM8","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"RM9","geographyName":"RM9","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.11533012184755,"unique_full_postcodes":477,"effective_sic_sections":12.32391235079032,"top_full_postcode_count":44,"top_full_postcode_share":1.4930437733288089,"active_registered_companies":2947},"metadata":{"denominator":2947,"geographyCode":"RM9","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE1","geographyName":"SE1","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.39642543217111,"unique_full_postcodes":1502,"effective_sic_sections":13.463862992448584,"top_full_postcode_count":1291,"top_full_postcode_share":6.765183671330504,"active_registered_companies":19083},"metadata":{"denominator":19083,"geographyCode":"SE1","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE10","geographyName":"SE10","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.995845235003895,"unique_full_postcodes":632,"effective_sic_sections":13.431294688571224,"top_full_postcode_count":100,"top_full_postcode_share":3.0921459492888066,"active_registered_companies":3234},"metadata":{"denominator":3234,"geographyCode":"SE10","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE11","geographyName":"SE11","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.895243653341115,"unique_full_postcodes":378,"effective_sic_sections":13.466122468529434,"top_full_postcode_count":495,"top_full_postcode_share":16.71168129642134,"active_registered_companies":2962},"metadata":{"denominator":2962,"geographyCode":"SE11","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE12","geographyName":"SE12","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":12.553699284009545,"unique_full_postcodes":410,"effective_sic_sections":14.072998583376746,"top_full_postcode_count":160,"top_full_postcode_share":8.714596949891067,"active_registered_companies":1836},"metadata":{"denominator":1836,"geographyCode":"SE12","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE13","geographyName":"SE13","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.052106430155211,"unique_full_postcodes":581,"effective_sic_sections":13.87497729375521,"top_full_postcode_count":59,"top_full_postcode_share":1.9382391590013142,"active_registered_companies":3044},"metadata":{"denominator":3044,"geographyCode":"SE13","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE14","geographyName":"SE14","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":12.221144519883609,"unique_full_postcodes":329,"effective_sic_sections":14.260669087601945,"top_full_postcode_count":53,"top_full_postcode_share":3.0477285796434734,"active_registered_companies":1739},"metadata":{"denominator":1739,"geographyCode":"SE14","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE15","geographyName":"SE15","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":12.726222564497498,"unique_full_postcodes":918,"effective_sic_sections":14.186143145331473,"top_full_postcode_count":108,"top_full_postcode_share":2.5,"active_registered_companies":4320},"metadata":{"denominator":4320,"geographyCode":"SE15","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE16","geographyName":"SE16","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.120481927710843,"unique_full_postcodes":790,"effective_sic_sections":13.174996481798047,"top_full_postcode_count":466,"top_full_postcode_share":10.376308171899353,"active_registered_companies":4491},"metadata":{"denominator":4491,"geographyCode":"SE16","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE17","geographyName":"SE17","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.781544256120528,"unique_full_postcodes":493,"effective_sic_sections":13.502891318143552,"top_full_postcode_count":62,"top_full_postcode_share":2.824601366742597,"active_registered_companies":2195},"metadata":{"denominator":2195,"geographyCode":"SE17","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE18","geographyName":"SE18","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.17484482960534,"unique_full_postcodes":1128,"effective_sic_sections":13.856928106959995,"top_full_postcode_count":463,"top_full_postcode_share":6.656124209315699,"active_registered_companies":6956},"metadata":{"denominator":6956,"geographyCode":"SE18","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE19","geographyName":"SE19","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.377697841726617,"unique_full_postcodes":456,"effective_sic_sections":13.669048922242345,"top_full_postcode_count":281,"top_full_postcode_share":8.89803673210893,"active_registered_companies":3158},"metadata":{"denominator":3158,"geographyCode":"SE19","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE1P","geographyName":"SE1P","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":100,"unique_full_postcodes":1,"effective_sic_sections":1,"top_full_postcode_count":1,"top_full_postcode_share":100,"active_registered_companies":1},"metadata":{"denominator":1,"geographyCode":"SE1P","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE2","geographyName":"SE2","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":12.4,"unique_full_postcodes":385,"effective_sic_sections":13.755390577490054,"top_full_postcode_count":50,"top_full_postcode_share":2.774694783573807,"active_registered_companies":1802},"metadata":{"denominator":1802,"geographyCode":"SE2","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE20","geographyName":"SE20","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":11.347121296813862,"unique_full_postcodes":349,"effective_sic_sections":14.307441221850889,"top_full_postcode_count":55,"top_full_postcode_share":3.608923884514436,"active_registered_companies":1524},"metadata":{"denominator":1524,"geographyCode":"SE20","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE21","geographyName":"SE21","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":20.083333333333332,"unique_full_postcodes":226,"effective_sic_sections":13.262426289214964,"top_full_postcode_count":85,"top_full_postcode_share":7.973733583489681,"active_registered_companies":1066},"metadata":{"denominator":1066,"geographyCode":"SE21","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE22","geographyName":"SE22","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.663793103448274,"unique_full_postcodes":402,"effective_sic_sections":13.077070551222421,"top_full_postcode_count":149,"top_full_postcode_share":7.166907166907167,"active_registered_companies":2079},"metadata":{"denominator":2079,"geographyCode":"SE22","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE23","geographyName":"SE23","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.09433962264151,"unique_full_postcodes":488,"effective_sic_sections":13.78034432195741,"top_full_postcode_count":35,"top_full_postcode_share":1.639344262295082,"active_registered_companies":2135},"metadata":{"denominator":2135,"geographyCode":"SE23","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE24","geographyName":"SE24","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.065416065416066,"unique_full_postcodes":229,"effective_sic_sections":13.665284983577882,"top_full_postcode_count":378,"top_full_postcode_share":20.32258064516129,"active_registered_companies":1860},"metadata":{"denominator":1860,"geographyCode":"SE24","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE25","geographyName":"SE25","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":12.36210253082414,"unique_full_postcodes":488,"effective_sic_sections":13.652788336160768,"top_full_postcode_count":128,"top_full_postcode_share":4.763676963155937,"active_registered_companies":2687},"metadata":{"denominator":2687,"geographyCode":"SE25","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE26","geographyName":"SE26","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.99638336347197,"unique_full_postcodes":478,"effective_sic_sections":13.894189547788214,"top_full_postcode_count":232,"top_full_postcode_share":9.646569646569647,"active_registered_companies":2405},"metadata":{"denominator":2405,"geographyCode":"SE26","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE27","geographyName":"SE27","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.17966903073286,"unique_full_postcodes":297,"effective_sic_sections":13.905896746640064,"top_full_postcode_count":49,"top_full_postcode_share":3.3447098976109215,"active_registered_companies":1465},"metadata":{"denominator":1465,"geographyCode":"SE27","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE28","geographyName":"SE28","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.66885050625372,"unique_full_postcodes":369,"effective_sic_sections":13.29020880194669,"top_full_postcode_count":332,"top_full_postcode_share":12.179016874541453,"active_registered_companies":2726},"metadata":{"denominator":2726,"geographyCode":"SE28","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE3","geographyName":"SE3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.104906478720523,"unique_full_postcodes":602,"effective_sic_sections":13.488247903338735,"top_full_postcode_count":195,"top_full_postcode_share":6.21414913957935,"active_registered_companies":3138},"metadata":{"denominator":3138,"geographyCode":"SE3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE4","geographyName":"SE4","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.56234954260953,"unique_full_postcodes":371,"effective_sic_sections":13.431328641622471,"top_full_postcode_count":86,"top_full_postcode_share":4.725274725274725,"active_registered_companies":1820},"metadata":{"denominator":1820,"geographyCode":"SE4","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE5","geographyName":"SE5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.061272584446192,"unique_full_postcodes":652,"effective_sic_sections":14.139733107690413,"top_full_postcode_count":110,"top_full_postcode_share":3.4235916588857767,"active_registered_companies":3213},"metadata":{"denominator":3213,"geographyCode":"SE5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE6","geographyName":"SE6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":11.875158589190562,"unique_full_postcodes":675,"effective_sic_sections":13.87082973636295,"top_full_postcode_count":216,"top_full_postcode_share":6.4767616191904045,"active_registered_companies":3335},"metadata":{"denominator":3335,"geographyCode":"SE6","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE7","geographyName":"SE7","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.3630289532294,"unique_full_postcodes":323,"effective_sic_sections":13.518784647713991,"top_full_postcode_count":39,"top_full_postcode_share":2.629804450438301,"active_registered_companies":1483},"metadata":{"denominator":1483,"geographyCode":"SE7","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE8","geographyName":"SE8","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":40.31612645058023,"unique_full_postcodes":437,"effective_sic_sections":9.17152768188254,"top_full_postcode_count":1807,"top_full_postcode_share":42.45770676691729,"active_registered_companies":4256},"metadata":{"denominator":4256,"geographyCode":"SE8","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SE9","geographyName":"SE9","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.181198910081743,"unique_full_postcodes":954,"effective_sic_sections":13.535650595904716,"top_full_postcode_count":527,"top_full_postcode_share":10.44184664156925,"active_registered_companies":5047},"metadata":{"denominator":5047,"geographyCode":"SE9","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SM1","geographyName":"SM1","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.563451776649746,"unique_full_postcodes":636,"effective_sic_sections":13.320623035051742,"top_full_postcode_count":547,"top_full_postcode_share":12.508575348730849,"active_registered_companies":4373},"metadata":{"denominator":4373,"geographyCode":"SM1","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SM2","geographyName":"SM2","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.038167938931299,"unique_full_postcodes":420,"effective_sic_sections":12.706894102800716,"top_full_postcode_count":253,"top_full_postcode_share":10.849056603773585,"active_registered_companies":2332},"metadata":{"denominator":2332,"geographyCode":"SM2","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SM3","geographyName":"SM3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.842228282041292,"unique_full_postcodes":307,"effective_sic_sections":12.825371320459094,"top_full_postcode_count":305,"top_full_postcode_share":13.078902229845626,"active_registered_companies":2332},"metadata":{"denominator":2332,"geographyCode":"SM3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SM4","geographyName":"SM4","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.019032513877875,"unique_full_postcodes":480,"effective_sic_sections":12.96527460858344,"top_full_postcode_count":1236,"top_full_postcode_share":23.338368580060422,"active_registered_companies":5296},"metadata":{"denominator":5296,"geographyCode":"SM4","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SM5","geographyName":"SM5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.155963302752292,"unique_full_postcodes":548,"effective_sic_sections":12.830078391784928,"top_full_postcode_count":151,"top_full_postcode_share":6.27597672485453,"active_registered_companies":2406},"metadata":{"denominator":2406,"geographyCode":"SM5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SM6","geographyName":"SM6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.438368860055608,"unique_full_postcodes":540,"effective_sic_sections":13.52953449318417,"top_full_postcode_count":729,"top_full_postcode_share":19.133858267716537,"active_registered_companies":3810},"metadata":{"denominator":3810,"geographyCode":"SM6","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SM7","geographyName":"SM7","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.627450980392158,"unique_full_postcodes":19,"effective_sic_sections":10.692780081599517,"top_full_postcode_count":13,"top_full_postcode_share":13.541666666666666,"active_registered_companies":96},"metadata":{"denominator":96,"geographyCode":"SM7","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW10","geographyName":"SW10","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.935760906904843,"unique_full_postcodes":356,"effective_sic_sections":13.242309625858187,"top_full_postcode_count":181,"top_full_postcode_share":7.018224117875145,"active_registered_companies":2579},"metadata":{"denominator":2579,"geographyCode":"SW10","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW11","geographyName":"SW11","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.761139069596172,"unique_full_postcodes":1197,"effective_sic_sections":13.365862036798648,"top_full_postcode_count":266,"top_full_postcode_share":3.7994572203970858,"active_registered_companies":7001},"metadata":{"denominator":7001,"geographyCode":"SW11","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW12","geographyName":"SW12","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.43869209809264,"unique_full_postcodes":473,"effective_sic_sections":13.127443827639526,"top_full_postcode_count":180,"top_full_postcode_share":7.751937984496124,"active_registered_companies":2322},"metadata":{"denominator":2322,"geographyCode":"SW12","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW13","geographyName":"SW13","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.95148574893875,"unique_full_postcodes":288,"effective_sic_sections":12.376101262175455,"top_full_postcode_count":205,"top_full_postcode_share":13.540290620871861,"active_registered_companies":1514},"metadata":{"denominator":1514,"geographyCode":"SW13","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW14","geographyName":"SW14","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":21.551724137931032,"unique_full_postcodes":287,"effective_sic_sections":12.267778741499534,"top_full_postcode_count":205,"top_full_postcode_share":10.39553752535497,"active_registered_companies":1972},"metadata":{"denominator":1972,"geographyCode":"SW14","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW15","geographyName":"SW15","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.505865367262228,"unique_full_postcodes":923,"effective_sic_sections":13.533672799375982,"top_full_postcode_count":233,"top_full_postcode_share":4.779487179487179,"active_registered_companies":4875},"metadata":{"denominator":4875,"geographyCode":"SW15","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW16","geographyName":"SW16","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.982021379980564,"unique_full_postcodes":1093,"effective_sic_sections":13.257041909995605,"top_full_postcode_count":220,"top_full_postcode_share":3.070053028188669,"active_registered_companies":7166},"metadata":{"denominator":7166,"geographyCode":"SW16","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW17","geographyName":"SW17","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.202004626060138,"unique_full_postcodes":766,"effective_sic_sections":13.319591348146906,"top_full_postcode_count":291,"top_full_postcode_share":5.044201768070723,"active_registered_companies":5769},"metadata":{"denominator":5769,"geographyCode":"SW17","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW18","geographyName":"SW18","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.16887370069771,"unique_full_postcodes":980,"effective_sic_sections":13.345840970277516,"top_full_postcode_count":558,"top_full_postcode_share":8.896683673469388,"active_registered_companies":6272},"metadata":{"denominator":6272,"geographyCode":"SW18","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW19","geographyName":"SW19","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.433902456595344,"unique_full_postcodes":1279,"effective_sic_sections":13.201926625068714,"top_full_postcode_count":1104,"top_full_postcode_share":8.99682177491647,"active_registered_companies":12271},"metadata":{"denominator":12271,"geographyCode":"SW19","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW1A","geographyName":"SW1A","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":21.428571428571427,"unique_full_postcodes":75,"effective_sic_sections":12.309163439833352,"top_full_postcode_count":142,"top_full_postcode_share":10.889570552147239,"active_registered_companies":1304},"metadata":{"denominator":1304,"geographyCode":"SW1A","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW1E","geographyName":"SW1E","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":21.313299944351698,"unique_full_postcodes":68,"effective_sic_sections":11.420884704972302,"top_full_postcode_count":426,"top_full_postcode_share":21.868583162217657,"active_registered_companies":1948},"metadata":{"denominator":1948,"geographyCode":"SW1E","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW1H","geographyName":"SW1H","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":29.79778710415872,"unique_full_postcodes":68,"effective_sic_sections":10.857491714019536,"top_full_postcode_count":1057,"top_full_postcode_share":39.87174651075066,"active_registered_companies":2651},"metadata":{"denominator":2651,"geographyCode":"SW1H","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW1P","geographyName":"SW1P","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.239967239967243,"unique_full_postcodes":322,"effective_sic_sections":13.807767382348338,"top_full_postcode_count":334,"top_full_postcode_share":14.937388193202148,"active_registered_companies":2236},"metadata":{"denominator":2236,"geographyCode":"SW1P","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW1V","geographyName":"SW1V","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.88411358403684,"unique_full_postcodes":411,"effective_sic_sections":13.231900255627792,"top_full_postcode_count":318,"top_full_postcode_share":8.860406798551129,"active_registered_companies":3589},"metadata":{"denominator":3589,"geographyCode":"SW1V","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW1W","geographyName":"SW1W","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.244656363038473,"unique_full_postcodes":231,"effective_sic_sections":13.080144516710837,"top_full_postcode_count":340,"top_full_postcode_share":11.548913043478262,"active_registered_companies":2944},"metadata":{"denominator":2944,"geographyCode":"SW1W","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW1X","geographyName":"SW1X","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.572095193653755,"unique_full_postcodes":252,"effective_sic_sections":11.622198675285068,"top_full_postcode_count":228,"top_full_postcode_share":10.614525139664805,"active_registered_companies":2148},"metadata":{"denominator":2148,"geographyCode":"SW1X","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW1Y","geographyName":"SW1Y","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.806663924310982,"unique_full_postcodes":163,"effective_sic_sections":11.615719218382255,"top_full_postcode_count":729,"top_full_postcode_share":13.598209289311697,"active_registered_companies":5361},"metadata":{"denominator":5361,"geographyCode":"SW1Y","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW2","geographyName":"SW2","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":12.793542074363993,"unique_full_postcodes":774,"effective_sic_sections":14.173120756580971,"top_full_postcode_count":315,"top_full_postcode_share":8.830950378469302,"active_registered_companies":3567},"metadata":{"denominator":3567,"geographyCode":"SW2","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW20","geographyName":"SW20","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.4102704179186,"unique_full_postcodes":434,"effective_sic_sections":12.81042265427299,"top_full_postcode_count":401,"top_full_postcode_share":13.134621683589911,"active_registered_companies":3053},"metadata":{"denominator":3053,"geographyCode":"SW20","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW3","geographyName":"SW3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.599624564226335,"unique_full_postcodes":567,"effective_sic_sections":13.125621314858897,"top_full_postcode_count":150,"top_full_postcode_share":4.3465662126919735,"active_registered_companies":3451},"metadata":{"denominator":3451,"geographyCode":"SW3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW4","geographyName":"SW4","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.248994741725951,"unique_full_postcodes":666,"effective_sic_sections":13.583741508290835,"top_full_postcode_count":57,"top_full_postcode_share":1.9846796657381613,"active_registered_companies":2872},"metadata":{"denominator":2872,"geographyCode":"SW4","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW5","geographyName":"SW5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.160743575724439,"unique_full_postcodes":247,"effective_sic_sections":13.856038873191698,"top_full_postcode_count":78,"top_full_postcode_share":4.8964218455743875,"active_registered_companies":1593},"metadata":{"denominator":1593,"geographyCode":"SW5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW6","geographyName":"SW6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.41044626776066,"unique_full_postcodes":1143,"effective_sic_sections":13.536865812336114,"top_full_postcode_count":425,"top_full_postcode_share":4.728000889976638,"active_registered_companies":8989},"metadata":{"denominator":8989,"geographyCode":"SW6","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW7","geographyName":"SW7","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.91475855815008,"unique_full_postcodes":437,"effective_sic_sections":12.92620035046049,"top_full_postcode_count":461,"top_full_postcode_share":11.476226039332836,"active_registered_companies":4017},"metadata":{"denominator":4017,"geographyCode":"SW7","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW8","geographyName":"SW8","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.433962264150942,"unique_full_postcodes":643,"effective_sic_sections":13.702919039236104,"top_full_postcode_count":331,"top_full_postcode_share":9.652960046660834,"active_registered_companies":3429},"metadata":{"denominator":3429,"geographyCode":"SW8","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"SW9","geographyName":"SW9","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.686494304827338,"unique_full_postcodes":727,"effective_sic_sections":14.068308632767021,"top_full_postcode_count":322,"top_full_postcode_share":6.90542569161484,"active_registered_companies":4663},"metadata":{"denominator":4663,"geographyCode":"SW9","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TN14","geographyName":"TN14","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":26.190476190476193,"unique_full_postcodes":18,"effective_sic_sections":9.618239388228249,"top_full_postcode_count":6,"top_full_postcode_share":15.789473684210526,"active_registered_companies":38},"metadata":{"denominator":38,"geographyCode":"TN14","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TN16","geographyName":"TN16","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.081918081918083,"unique_full_postcodes":182,"effective_sic_sections":13.403087141329804,"top_full_postcode_count":206,"top_full_postcode_share":22.86348501664817,"active_registered_companies":901},"metadata":{"denominator":901,"geographyCode":"TN16","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TW1","geographyName":"TW1","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.657635467980295,"unique_full_postcodes":479,"effective_sic_sections":12.735735264731296,"top_full_postcode_count":191,"top_full_postcode_share":6.62734212352533,"active_registered_companies":2882},"metadata":{"denominator":2882,"geographyCode":"TW1","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TW10","geographyName":"TW10","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":20.954106280193237,"unique_full_postcodes":356,"effective_sic_sections":12.275608127733033,"top_full_postcode_count":69,"top_full_postcode_share":4.798331015299027,"active_registered_companies":1438},"metadata":{"denominator":1438,"geographyCode":"TW10","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TW11","geographyName":"TW11","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":23.211920529801326,"unique_full_postcodes":409,"effective_sic_sections":12.143870568823814,"top_full_postcode_count":341,"top_full_postcode_share":12.714392244593586,"active_registered_companies":2682},"metadata":{"denominator":2682,"geographyCode":"TW11","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TW12","geographyName":"TW12","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.05255878284924,"unique_full_postcodes":413,"effective_sic_sections":12.796036980089738,"top_full_postcode_count":460,"top_full_postcode_share":17.477203647416413,"active_registered_companies":2632},"metadata":{"denominator":2632,"geographyCode":"TW12","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TW13","geographyName":"TW13","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.178385416666664,"unique_full_postcodes":569,"effective_sic_sections":12.700636800159431,"top_full_postcode_count":170,"top_full_postcode_share":6.510915358100345,"active_registered_companies":2611},"metadata":{"denominator":2611,"geographyCode":"TW13","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TW14","geographyName":"TW14","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.678596993557623,"unique_full_postcodes":387,"effective_sic_sections":12.288775108286334,"top_full_postcode_count":254,"top_full_postcode_share":10.444078947368421,"active_registered_companies":2432},"metadata":{"denominator":2432,"geographyCode":"TW14","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TW15","geographyName":"TW15","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":28.333333333333332,"unique_full_postcodes":5,"effective_sic_sections":9.11809480817893,"top_full_postcode_count":24,"top_full_postcode_share":47.05882352941176,"active_registered_companies":51},"metadata":{"denominator":51,"geographyCode":"TW15","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TW19","geographyName":"TW19","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":25,"unique_full_postcodes":2,"effective_sic_sections":6.172327376868209,"top_full_postcode_count":11,"top_full_postcode_share":91.66666666666666,"active_registered_companies":12},"metadata":{"denominator":12,"geographyCode":"TW19","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TW2","geographyName":"TW2","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.87289088863892,"unique_full_postcodes":444,"effective_sic_sections":13.00585984530915,"top_full_postcode_count":154,"top_full_postcode_share":6.489675516224189,"active_registered_companies":2373},"metadata":{"denominator":2373,"geographyCode":"TW2","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TW3","geographyName":"TW3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.681762970674995,"unique_full_postcodes":591,"effective_sic_sections":12.127652677998126,"top_full_postcode_count":208,"top_full_postcode_share":4.198627371820751,"active_registered_companies":4954},"metadata":{"denominator":4954,"geographyCode":"TW3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TW4","geographyName":"TW4","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":22.139303482587064,"unique_full_postcodes":379,"effective_sic_sections":11.54434206848391,"top_full_postcode_count":404,"top_full_postcode_share":12.070510905288318,"active_registered_companies":3347},"metadata":{"denominator":3347,"geographyCode":"TW4","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TW5","geographyName":"TW5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":21.385628399656458,"unique_full_postcodes":349,"effective_sic_sections":11.198431117212392,"top_full_postcode_count":78,"top_full_postcode_share":2.5096525096525095,"active_registered_companies":3108},"metadata":{"denominator":3108,"geographyCode":"TW5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TW6","geographyName":"TW6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.034965034965033,"unique_full_postcodes":28,"effective_sic_sections":10.792864475357728,"top_full_postcode_count":112,"top_full_postcode_share":40.28776978417266,"active_registered_companies":278},"metadata":{"denominator":278,"geographyCode":"TW6","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TW7","geographyName":"TW7","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.232209737827715,"unique_full_postcodes":623,"effective_sic_sections":13.009245735810026,"top_full_postcode_count":232,"top_full_postcode_share":5.842357088894485,"active_registered_companies":3971},"metadata":{"denominator":3971,"geographyCode":"TW7","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TW8","geographyName":"TW8","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.972375690607734,"unique_full_postcodes":424,"effective_sic_sections":12.407167147609792,"top_full_postcode_count":693,"top_full_postcode_share":18.519508284339924,"active_registered_companies":3742},"metadata":{"denominator":3742,"geographyCode":"TW8","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"TW9","geographyName":"TW9","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.18918918918919,"unique_full_postcodes":425,"effective_sic_sections":13.069563904819592,"top_full_postcode_count":321,"top_full_postcode_share":8.077503774534474,"active_registered_companies":3974},"metadata":{"denominator":3974,"geographyCode":"TW9","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"UB1","geographyName":"UB1","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":23.76392417432089,"unique_full_postcodes":519,"effective_sic_sections":11.095902198867652,"top_full_postcode_count":213,"top_full_postcode_share":4.754464285714286,"active_registered_companies":4480},"metadata":{"denominator":4480,"geographyCode":"UB1","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"UB10","geographyName":"UB10","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.942768754833722,"unique_full_postcodes":575,"effective_sic_sections":12.113586177398503,"top_full_postcode_count":330,"top_full_postcode_share":9.56799072194839,"active_registered_companies":3449},"metadata":{"denominator":3449,"geographyCode":"UB10","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"UB11","geographyName":"UB11","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.81692573402418,"unique_full_postcodes":8,"effective_sic_sections":12.411841287570706,"top_full_postcode_count":296,"top_full_postcode_share":57.925636007827784,"active_registered_companies":511},"metadata":{"denominator":511,"geographyCode":"UB11","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"UB2","geographyName":"UB2","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":27.159671330224295,"unique_full_postcodes":452,"effective_sic_sections":10.146945156442161,"top_full_postcode_count":197,"top_full_postcode_share":4.8486340142751665,"active_registered_companies":4063},"metadata":{"denominator":4063,"geographyCode":"UB2","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"UB3","geographyName":"UB3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.829445453275596,"unique_full_postcodes":816,"effective_sic_sections":11.723214519854887,"top_full_postcode_count":318,"top_full_postcode_share":5.098605098605099,"active_registered_companies":6237},"metadata":{"denominator":6237,"geographyCode":"UB3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"UB4","geographyName":"UB4","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.8832880961613,"unique_full_postcodes":577,"effective_sic_sections":10.923291765023603,"top_full_postcode_count":225,"top_full_postcode_share":4.896626768226333,"active_registered_companies":4595},"metadata":{"denominator":4595,"geographyCode":"UB4","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"UB5","geographyName":"UB5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":20.052910052910054,"unique_full_postcodes":645,"effective_sic_sections":11.930449064010514,"top_full_postcode_count":197,"top_full_postcode_share":5.9230306674684305,"active_registered_companies":3326},"metadata":{"denominator":3326,"geographyCode":"UB5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"UB6","geographyName":"UB6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.501114247511516,"unique_full_postcodes":738,"effective_sic_sections":12.88531728183392,"top_full_postcode_count":533,"top_full_postcode_share":8.654002273096282,"active_registered_companies":6159},"metadata":{"denominator":6159,"geographyCode":"UB6","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"UB7","geographyName":"UB7","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.428750313047832,"unique_full_postcodes":516,"effective_sic_sections":12.778498255516833,"top_full_postcode_count":240,"top_full_postcode_share":6.997084548104956,"active_registered_companies":3430},"metadata":{"denominator":3430,"geographyCode":"UB7","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"UB8","geographyName":"UB8","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.88546255506608,"unique_full_postcodes":604,"effective_sic_sections":13.45788175198291,"top_full_postcode_count":387,"top_full_postcode_share":7.761732851985561,"active_registered_companies":4986},"metadata":{"denominator":4986,"geographyCode":"UB8","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"UB9","geographyName":"UB9","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.824447334200261,"unique_full_postcodes":129,"effective_sic_sections":13.677669393210973,"top_full_postcode_count":138,"top_full_postcode_share":19.79913916786227,"active_registered_companies":697},"metadata":{"denominator":697,"geographyCode":"UB9","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W10","geographyName":"W10","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.703153988868275,"unique_full_postcodes":504,"effective_sic_sections":13.711199308663504,"top_full_postcode_count":868,"top_full_postcode_share":23.345884884346425,"active_registered_companies":3718},"metadata":{"denominator":3718,"geographyCode":"W10","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W11","geographyName":"W11","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.44131963223364,"unique_full_postcodes":541,"effective_sic_sections":13.455577219032772,"top_full_postcode_count":202,"top_full_postcode_share":6.126781922960268,"active_registered_companies":3297},"metadata":{"denominator":3297,"geographyCode":"W11","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W12","geographyName":"W12","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.265951928065018,"unique_full_postcodes":618,"effective_sic_sections":13.533196857930935,"top_full_postcode_count":425,"top_full_postcode_share":8.389261744966444,"active_registered_companies":5066},"metadata":{"denominator":5066,"geographyCode":"W12","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W13","geographyName":"W13","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.2578125,"unique_full_postcodes":460,"effective_sic_sections":13.068080842904907,"top_full_postcode_count":206,"top_full_postcode_share":6.537607108854332,"active_registered_companies":3151},"metadata":{"denominator":3151,"geographyCode":"W13","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W14","geographyName":"W14","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.46594684385382,"unique_full_postcodes":499,"effective_sic_sections":13.158576333500429,"top_full_postcode_count":201,"top_full_postcode_share":4.851556842867487,"active_registered_companies":4143},"metadata":{"denominator":4143,"geographyCode":"W14","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1A","geographyName":"W1A","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":27.450980392156865,"unique_full_postcodes":32,"effective_sic_sections":9.165341870160823,"top_full_postcode_count":57,"top_full_postcode_share":34.756097560975604,"active_registered_companies":164},"metadata":{"denominator":164,"geographyCode":"W1A","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1B","geographyName":"W1B","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.859153159944718,"unique_full_postcodes":139,"effective_sic_sections":12.365731943459593,"top_full_postcode_count":3211,"top_full_postcode_share":44.07687028140014,"active_registered_companies":7285},"metadata":{"denominator":7285,"geographyCode":"W1B","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1C","geographyName":"W1C","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.270194986072422,"unique_full_postcodes":55,"effective_sic_sections":11.74139323590673,"top_full_postcode_count":463,"top_full_postcode_share":41.26559714795009,"active_registered_companies":1122},"metadata":{"denominator":1122,"geographyCode":"W1C","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1D","geographyName":"W1D","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.486766398158803,"unique_full_postcodes":331,"effective_sic_sections":13.281614991531628,"top_full_postcode_count":620,"top_full_postcode_share":14.990328820116053,"active_registered_companies":4136},"metadata":{"denominator":4136,"geographyCode":"W1D","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1F","geographyName":"W1F","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.73469387755102,"unique_full_postcodes":384,"effective_sic_sections":11.243908377600803,"top_full_postcode_count":265,"top_full_postcode_share":6.132839620458228,"active_registered_companies":4321},"metadata":{"denominator":4321,"geographyCode":"W1F","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1G","geographyName":"W1G","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.41897735945052,"unique_full_postcodes":406,"effective_sic_sections":13.280874150109973,"top_full_postcode_count":1677,"top_full_postcode_share":22.643802322441264,"active_registered_companies":7406},"metadata":{"denominator":7406,"geographyCode":"W1G","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1H","geographyName":"W1H","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.627698152305303,"unique_full_postcodes":436,"effective_sic_sections":13.020333698840629,"top_full_postcode_count":580,"top_full_postcode_share":9.899300221880868,"active_registered_companies":5859},"metadata":{"denominator":5859,"geographyCode":"W1H","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1J","geographyName":"W1J","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":21.141919007661436,"unique_full_postcodes":346,"effective_sic_sections":11.02666706504671,"top_full_postcode_count":387,"top_full_postcode_share":7.004524886877828,"active_registered_companies":5525},"metadata":{"denominator":5525,"geographyCode":"W1J","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1K","geographyName":"W1K","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.1875,"unique_full_postcodes":399,"effective_sic_sections":11.621228081096724,"top_full_postcode_count":668,"top_full_postcode_share":12.198685171658145,"active_registered_companies":5476},"metadata":{"denominator":5476,"geographyCode":"W1K","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1M","geographyName":"W1M","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":60,"unique_full_postcodes":98,"effective_sic_sections":2.586409289858933,"top_full_postcode_count":46,"top_full_postcode_share":18.69918699186992,"active_registered_companies":246},"metadata":{"denominator":246,"geographyCode":"W1M","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1N","geographyName":"W1N","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":50,"unique_full_postcodes":59,"effective_sic_sections":2.82842712474619,"top_full_postcode_count":12,"top_full_postcode_share":10.619469026548673,"active_registered_companies":113},"metadata":{"denominator":113,"geographyCode":"W1N","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1P","geographyName":"W1P","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":50,"unique_full_postcodes":29,"effective_sic_sections":2,"top_full_postcode_count":6,"top_full_postcode_share":10.526315789473683,"active_registered_companies":57},"metadata":{"denominator":57,"geographyCode":"W1P","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1R","geographyName":"W1R","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":100,"unique_full_postcodes":65,"effective_sic_sections":1,"top_full_postcode_count":28,"top_full_postcode_share":22.22222222222222,"active_registered_companies":126},"metadata":{"denominator":126,"geographyCode":"W1R","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1S","geographyName":"W1S","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.93267425854086,"unique_full_postcodes":338,"effective_sic_sections":11.39755664918485,"top_full_postcode_count":1478,"top_full_postcode_share":18.912348048624438,"active_registered_companies":7815},"metadata":{"denominator":7815,"geographyCode":"W1S","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1T","geographyName":"W1T","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.353466463863402,"unique_full_postcodes":504,"effective_sic_sections":11.833653228774288,"top_full_postcode_count":3356,"top_full_postcode_share":18.583531757018662,"active_registered_companies":18059},"metadata":{"denominator":18059,"geographyCode":"W1T","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1U","geographyName":"W1U","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.972936852656197,"unique_full_postcodes":509,"effective_sic_sections":12.61226453772325,"top_full_postcode_count":411,"top_full_postcode_share":6.576,"active_registered_companies":6250},"metadata":{"denominator":6250,"geographyCode":"W1U","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1V","geographyName":"W1V","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":20,"unique_full_postcodes":50,"effective_sic_sections":7.578582832551992,"top_full_postcode_count":20,"top_full_postcode_share":23.25581395348837,"active_registered_companies":86},"metadata":{"denominator":86,"geographyCode":"W1V","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1W","geographyName":"W1W","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.48652262650433,"unique_full_postcodes":385,"effective_sic_sections":11.967028508644237,"top_full_postcode_count":32258,"top_full_postcode_share":67.29389185580774,"active_registered_companies":47936},"metadata":{"denominator":47936,"geographyCode":"W1W","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1X","geographyName":"W1X","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":66.66666666666666,"unique_full_postcodes":60,"effective_sic_sections":2.381101577952299,"top_full_postcode_count":11,"top_full_postcode_share":9.243697478991598,"active_registered_companies":119},"metadata":{"denominator":119,"geographyCode":"W1X","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W1Y","geographyName":"W1Y","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":33.33333333333333,"unique_full_postcodes":62,"effective_sic_sections":2.9999999999999996,"top_full_postcode_count":11,"top_full_postcode_share":10.576923076923077,"active_registered_companies":104},"metadata":{"denominator":104,"geographyCode":"W1Y","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W2","geographyName":"W2","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.929133858267715,"unique_full_postcodes":840,"effective_sic_sections":13.864023373367685,"top_full_postcode_count":750,"top_full_postcode_share":8.861058601134216,"active_registered_companies":8464},"metadata":{"denominator":8464,"geographyCode":"W2","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W3","geographyName":"W3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.930348258706468,"unique_full_postcodes":890,"effective_sic_sections":13.649630871967002,"top_full_postcode_count":467,"top_full_postcode_share":6.750505926568372,"active_registered_companies":6918},"metadata":{"denominator":6918,"geographyCode":"W3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W4","geographyName":"W4","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.78650400304994,"unique_full_postcodes":800,"effective_sic_sections":12.740845920916943,"top_full_postcode_count":582,"top_full_postcode_share":8.465454545454545,"active_registered_companies":6875},"metadata":{"denominator":6875,"geographyCode":"W4","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W5","geographyName":"W5","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.748106523332517,"unique_full_postcodes":786,"effective_sic_sections":13.173562846857441,"top_full_postcode_count":298,"top_full_postcode_share":4.25531914893617,"active_registered_companies":7003},"metadata":{"denominator":7003,"geographyCode":"W5","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W6","geographyName":"W6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":56.282879403342875,"unique_full_postcodes":567,"effective_sic_sections":6.015505979813008,"top_full_postcode_count":8032,"top_full_postcode_share":56.40449438202248,"active_registered_companies":14240},"metadata":{"denominator":14240,"geographyCode":"W6","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W7","geographyName":"W7","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":13.489623366641046,"unique_full_postcodes":394,"effective_sic_sections":13.22211965602355,"top_full_postcode_count":251,"top_full_postcode_share":11.25560538116592,"active_registered_companies":2230},"metadata":{"denominator":2230,"geographyCode":"W7","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W8","geographyName":"W8","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.210780370072406,"unique_full_postcodes":460,"effective_sic_sections":13.201683442329415,"top_full_postcode_count":896,"top_full_postcode_share":20.428636570907432,"active_registered_companies":4386},"metadata":{"denominator":4386,"geographyCode":"W8","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"W9","geographyName":"W9","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":14.39915299100053,"unique_full_postcodes":449,"effective_sic_sections":13.3862257756339,"top_full_postcode_count":77,"top_full_postcode_share":2.3561811505507957,"active_registered_companies":3268},"metadata":{"denominator":3268,"geographyCode":"W9","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WC1A","geographyName":"WC1A","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.929759704251385,"unique_full_postcodes":71,"effective_sic_sections":11.861888263568378,"top_full_postcode_count":419,"top_full_postcode_share":35.59898045879354,"active_registered_companies":1177},"metadata":{"denominator":1177,"geographyCode":"WC1A","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WC1B","geographyName":"WC1B","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":18.413793103448274,"unique_full_postcodes":113,"effective_sic_sections":13.121842876982932,"top_full_postcode_count":222,"top_full_postcode_share":13.997477931904163,"active_registered_companies":1586},"metadata":{"denominator":1586,"geographyCode":"WC1B","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WC1E","geographyName":"WC1E","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":20.063694267515924,"unique_full_postcodes":59,"effective_sic_sections":12.557578210625232,"top_full_postcode_count":38,"top_full_postcode_share":12.666666666666668,"active_registered_companies":300},"metadata":{"denominator":300,"geographyCode":"WC1E","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WC1H","geographyName":"WC1H","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.30851063829787,"unique_full_postcodes":174,"effective_sic_sections":12.33169718855204,"top_full_postcode_count":1855,"top_full_postcode_share":52.95461033399943,"active_registered_companies":3503},"metadata":{"denominator":3503,"geographyCode":"WC1H","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WC1N","geographyName":"WC1N","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.48076261608766,"unique_full_postcodes":178,"effective_sic_sections":12.772595681437505,"top_full_postcode_count":15587,"top_full_postcode_share":89.16537955494536,"active_registered_companies":17481},"metadata":{"denominator":17481,"geographyCode":"WC1N","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WC1R","geographyName":"WC1R","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.129032258064516,"unique_full_postcodes":77,"effective_sic_sections":12.779430366185483,"top_full_postcode_count":477,"top_full_postcode_share":28.24156305506217,"active_registered_companies":1689},"metadata":{"denominator":1689,"geographyCode":"WC1R","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WC1V","geographyName":"WC1V","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":22.23210315695865,"unique_full_postcodes":76,"effective_sic_sections":11.535293928370809,"top_full_postcode_count":454,"top_full_postcode_share":20.349619004930524,"active_registered_companies":2231},"metadata":{"denominator":2231,"geographyCode":"WC1V","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WC1X","geographyName":"WC1X","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.84532671629446,"unique_full_postcodes":228,"effective_sic_sections":12.024242023073974,"top_full_postcode_count":1463,"top_full_postcode_share":35.84905660377358,"active_registered_companies":4081},"metadata":{"denominator":4081,"geographyCode":"WC1X","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WC2A","geographyName":"WC2A","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":19.97495303694427,"unique_full_postcodes":85,"effective_sic_sections":12.452519341762333,"top_full_postcode_count":6232,"top_full_postcode_share":57.634329048367704,"active_registered_companies":10813},"metadata":{"denominator":10813,"geographyCode":"WC2A","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WC2B","geographyName":"WC2B","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.556501801506716,"unique_full_postcodes":122,"effective_sic_sections":12.631001449871636,"top_full_postcode_count":777,"top_full_postcode_share":25.467059980334316,"active_registered_companies":3051},"metadata":{"denominator":3051,"geographyCode":"WC2B","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WC2E","geographyName":"WC2E","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":16.56010230179028,"unique_full_postcodes":108,"effective_sic_sections":11.74482870585873,"top_full_postcode_count":356,"top_full_postcode_share":20.33123929183324,"active_registered_companies":1751},"metadata":{"denominator":1751,"geographyCode":"WC2E","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WC2H","geographyName":"WC2H","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":20.794173747182242,"unique_full_postcodes":227,"effective_sic_sections":10.733014174865964,"top_full_postcode_count":87547,"top_full_postcode_share":95.91038562664329,"active_registered_companies":91280},"metadata":{"denominator":91280,"geographyCode":"WC2H","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WC2N","geographyName":"WC2N","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":15.639165911151407,"unique_full_postcodes":100,"effective_sic_sections":12.472230886179897,"top_full_postcode_count":248,"top_full_postcode_share":11.17117117117117,"active_registered_companies":2220},"metadata":{"denominator":2220,"geographyCode":"WC2N","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WC2R","geographyName":"WC2R","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":17.136070580251104,"unique_full_postcodes":66,"effective_sic_sections":11.933493178812736,"top_full_postcode_count":706,"top_full_postcode_share":24.78062478062478,"active_registered_companies":2849},"metadata":{"denominator":2849,"geographyCode":"WC2R","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WD23","geographyName":"WD23","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":45,"unique_full_postcodes":3,"effective_sic_sections":3.4395711971628704,"top_full_postcode_count":17,"top_full_postcode_share":85,"active_registered_companies":20},"metadata":{"denominator":20,"geographyCode":"WD23","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WD3","geographyName":"WD3","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":35,"unique_full_postcodes":4,"effective_sic_sections":8.811293802301403,"top_full_postcode_count":9,"top_full_postcode_share":50,"active_registered_companies":18},"metadata":{"denominator":18,"geographyCode":"WD3","geographyType":"postcode-district"}},{"period":"2026-09-01","geographyCode":"WD6","geographyName":"WD6","geographyType":"postcode-district","parentCode":null,"parentName":null,"metrics":{"largest_section_share":100,"unique_full_postcodes":1,"effective_sic_sections":1,"top_full_postcode_count":1,"top_full_postcode_share":100,"active_registered_companies":1},"metadata":{"denominator":1,"geographyCode":"WD6","geographyType":"postcode-district"}}],"visualizations":[{"id":"map","label":"Diversity map","description":"Select effective SIC diversity, largest-section share or shared-address concentration.","url":"https://londongraph.com/g/business-diversity-by-postcode","renderer":"primary","default":true,"timeControl":"inherit","datasets":[],"transform":null,"controls":{"metric":true},"metrics":[],"caveat":null},{"id":"distribution","label":"Diversity distribution","description":"Place effective SIC-section diversity around the mapped London median and quartiles.","url":"https://londongraph.com/g/business-diversity-by-postcode?view=distribution","renderer":"area-distribution","default":false,"timeControl":"inherit","datasets":[],"transform":null,"controls":null,"metrics":[],"caveat":null},{"id":"scale-vs-diversity","label":"Scale vs diversity","description":"Compare live-company count with the evenness and breadth of the SIC-section mix.","url":"https://londongraph.com/g/business-diversity-by-postcode?view=scale-vs-diversity","renderer":"area-scatter","default":false,"timeControl":"inherit","datasets":[],"transform":null,"controls":null,"metrics":[],"caveat":null},{"id":"district-detail","label":"District detail","description":"Inspect company count, SIC concentration, unique postcodes and the busiest-address diagnostic.","url":"https://londongraph.com/g/business-diversity-by-postcode?view=district-detail","renderer":"area-metric-profile","default":false,"timeControl":"inherit","datasets":[],"transform":null,"controls":{"place":true},"metrics":[],"caveat":null}],"availability":"area-statistics","note":"The release is complete for the measures represented on the graph page."}