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Data centres in United Kingdom
As of 16 October 2026, the Data Centre Register lists 347 data centres in United Kingdom with 1,760 MW of live IT capacity and 10,579 MW in the pipeline (268 MW under construction, 2,010 MW committed and 8,301 MW at an early stage).
Capacity by stage
| Stage | Sites | IT capacity |
|---|---|---|
| Live | 257 | 1,760 MW |
| Under construction | 4 | 268 MW |
| Committed | 30 | 2,010 MW |
| Early stage | 36 | 8,301 MW |
| Land banked | 16 | 644 ha |
| No capacity listed | 4 | – |
A site counts in the most advanced stage that has capacity listed. Pipeline is under construction, committed and early stage together.
Largest operators in United Kingdom
| Operator | Sites | Live MW | Pipeline MW |
|---|---|---|---|
| ILI Group | 3 | 0 | 1,540 |
| Vantage Data Centers | 5 | 165 | 754 |
| QTS Datacenters | 1 | 0 | 720 |
| Reef Group | 2 | 0 | 600 |
| 3 | 44 | 544 | |
| Microsoft | 5 | 0 | 557 |
| Ark Data Centres | 7 | 166 | 342 |
| Apatura | 4 | 0 | 500 |
Cities
| City | Sites | Live MW | Pipeline MW |
|---|---|---|---|
| London | 81 | 572 | 2,069 |
| Cambois | 1 | 0 | 720 |
| Auchtertool | 1 | 0 | 600 |
| Coychurch Lower | 1 | 0 | 600 |
| Slough | 33 | 405 | 176 |
| Hurlford | 1 | 0 | 540 |
Types of data centre
United Kingdom has 227 colocation and 120 self-build data centres. By category: Retail (116), Wholesale (105), Self-build Systems Integrator/Managed Service Providers (32), Self-build Other (25), Self-build Financial/Institutional (23), Self-build Network & Telco (19). Ready-for-service years listed run from 1990 to 2031.
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The register has a record for each of these 347 sites: operator, address, coordinates, capacity by stage, ready-for-service year and sources. Sign in with Google for a free account: 5 full site records and 100 sites in lists a day. Pro (US$49 a month) opens 300 records a day, full query lists and Ask AI.
Frequently asked questions
- How many data centres are there in United Kingdom?
- The Data Centre Register lists 347 data centres in United Kingdom as of 16 October 2026: 257 live, 4 under construction, 30 committed and 36 at an early stage, of which 227 colocation and 120 self-build.
- What is the data centre capacity of United Kingdom?
- United Kingdom has 1,760 MW of live data centre IT capacity, with a further 10,579 MW in the pipeline (268 MW under construction, 2,010 MW committed and 8,301 MW at an early stage), for 12,339 MW in total.
- Which operators have the most data centre capacity in United Kingdom?
- By total IT capacity listed, the largest operators in United Kingdom are ILI Group, Vantage Data Centers and QTS Datacenters. ILI Group has 3 sites with 1,540 MW.
- Where are the data centres in United Kingdom?
- The cities with the most data centre capacity in United Kingdom are London, Cambois, Auchtertool and Coychurch Lower.
- Where does this data come from?
- The Data Centre Register at globaldcwiki.com is built from a register of data centre sites. Every proposed change is checked against outside sources and accepted by an admin before it appears. Figures were last updated on 16 October 2026.
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Last updated 16 October 2026. Cite as: Data Centre Register, "Data centres in United Kingdom", https://www.globaldcwiki.com/data-centres/united-kingdom.