# What London's core technology businesses do

> Telecommunications, software and information services — the core sector divided three ways.

- Category: Technology
- Cadence: annual
- Status: Published on a annual cadence.
- Dataset key: `core-tech-business-sectors`
- 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/what-londons-core-tech-businesses-do](https://londongraph.com/g/what-londons-core-tech-businesses-do)
- Machine-readable record: [https://londongraph.com/data/what-londons-core-tech-businesses-do](https://londongraph.com/data/what-londons-core-tech-businesses-do)

## Methodology

London local units in SIC 61 Telecommunications, 62 Computer programming and consultancy, and 63 Information service activities, summed from the 33 borough observations in the latest UK Business Counts release. A local unit is a workplace, not necessarily a company headquarters.

## Visualisations

- [Composition](https://londongraph.com/g/what-londons-core-tech-businesses-do): Telecommunications, software and information services — the core sector divided three ways.
- [Ordered shares](https://londongraph.com/g/what-londons-core-tech-businesses-do?view=ordered-share): Compare every part on one common 0–100 scale.

## 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.