# London's core technology businesses

> The share of each borough's workplaces in telecoms, programming and information services.

- Category: Technology
- Cadence: annual
- Status: Published on a annual cadence.
- Dataset key: `core-tech-business-share`
- Source: [Nomis / Office for National Statistics](https://www.nomisweb.co.uk/datasets/idbrlu)
- Licence: Open Government Licence v3.0 — [terms](https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/)
- Canonical page: [https://londongraph.com/g/londons-core-tech-businesses](https://londongraph.com/g/londons-core-tech-businesses)
- Machine-readable record: [https://londongraph.com/data/londons-core-tech-businesses](https://londongraph.com/data/londons-core-tech-businesses)

## Methodology

UK Business Counts local units in SIC divisions 61–63 divided by all local units in each borough. It counts registered workplaces, not startups, jobs, turnover or the whole digital economy; publishing, media and technology embedded in other industries are outside this deliberately narrow definition.

## Visualisations

- [Map](https://londongraph.com/g/londons-core-tech-businesses): Compare the same measure geographically.
- [Overview](https://londongraph.com/g/londons-core-tech-businesses?view=overview): The share of each borough's workplaces in telecoms, programming and information services.
- [Distribution](https://londongraph.com/g/londons-core-tech-businesses?view=distribution): Place every mapped area in the selected measure's distribution while preserving missing values.

## Citation guidance

Attribute the original publisher named above and identify LondonGraph as the visualisation and methodology layer. Do not describe live values as a historical census, and do not present placeholder values as observations.