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Scrutica
  1. Google Waltham Cross~124 MW operating
  2. AWS Europe
  3. AZURE UK South

United Kingdom

United States5United States12

Supplier relationships, by countryCustomer relationships, by country

181 of 198 facility records have a location. Circles show power, dark for operating and pale for other recorded figures.

Power on record

Operating plant counts operational records only.
7 operating records, 93% estimated rather than disclosed
Summed across disclosed counts.
38.6% worldwide, licence-withheld records excluded

Capacity over time

The timeline’s own readings, at each snapshot, for the facilities operating here today that have one: 1 of 7 operating records. The operating capacity above sums all 7.

Reported power reached ~124 MW on 23 Apr 2026, across the 1 facility with a dated reading.

2026~124 MW, 23 Apr 20262026~124 MW23 Apr 2026
All 2 capacity snapshots
Capacity snapshots, with the basis and sources of each
DatePowerAcceleratorsFacilitiesRevisedBasis and source
1 Sep 2025~124 MW11Observed. Epoch AI Frontier Data Centers
23 Apr 2026~124 MW11Observed. Epoch AI Frontier Data Centers

Facilities

Operating records first, by power, then other records with a power figure; records with none follow, by name. 14 of 198 records have capacity data or a site description, 7.1% here against 17.2% globally and 12.3% in the median country. A figure marked Held is not in operating totals.
Facility records in this country
Google Waltham CrossGoogle, AI hardware owner124
University of Bristol Isambard-AIUK Research and Innovation, AI hardware owner85,448
Northern Data Group Njored Taiga Cloud Island 5Northern Data Group, AI hardware owner32,048
NVIDIA Cambridge-1Nvidia, AI hardware owner0.5640
University of Edinburgh DiRAC TursaDistributed Research Using Advanced Computing Dirac, AI hardware owner0.4448
University of Cambridge Wilkes-3University of Cambridge, AI hardware owner0.3320
University of Oxford Jade2University of Oxford, AI hardware owner0.2504
Equinix LD5 (London)Equinix, Inc., Site operatorWithheld under a correction
Nscale Loughton90Held: announced23,040Held
4D Data Centers - Gatwick
Alibaba Cloud in United KingdomAlibaba, AI hardware owner
ANS - MAN6ANS Group Limited, PeeringDB listing holder

Ownership

How far the companies linked to facilities here can be traced, weighted by operating power.

91.6% of operating power is traced to a company with an SEC identifier or a linked parent.

SEC identifier or a linked parent91.6%125 MW, 2 of 67 facilities
Parent in licensed ownership data1 facility
Parent in other sources5 facilities
Company identified, parent unrecorded8.4%11 MW, 5 of 90 facilities
No company linked35 facilities
Facilities by ownership tier

Open a facility for its ownership relationships and sources.

Tier
Facility
Company
Capacity
Chain
Detail
  1. Tier 1Google Waltham CrossGoogleCompany has an SEC identifier124 MWview →
  2. Tier 4University of Bristol Isambard-AIUk Research And InnovationCompany identified; parent unrecorded8 MWview →
  3. Tier 4Northern Data Group Njored Taiga Cloud Island 5Northern Data GroupCompany identified; parent unrecorded3 MWview →
  4. Tier 1NVIDIA Cambridge-1NvidiaCompany has an SEC identifier<1 MWview →
  5. Tier 4University of Edinburgh DiRAC TursaDistributed Research Using Advanced Computing DiracCompany identified; parent unrecorded<1 MWview →
  6. Tier 4University of Cambridge Wilkes-3University Of CambridgeCompany identified; parent unrecorded<1 MWview →
  7. Tier 4University of Oxford Jade2University Of OxfordCompany identified; parent unrecorded<1 MWview →
  8. Tier 1AWS Europe (London)Amazon.com, Inc.Company has an SEC identifier—view →
  9. Tier 1AZURE UK SouthMicrosoft CorporationCompany has an SEC identifier—view →
  10. Tier 1AZURE UK WestMicrosoft CorporationCompany has an SEC identifier—view →
  11. Tier 1GCP Europe West 2GoogleCompany has an SEC identifier—view →
  12. Tier 1OCI UK West (Newport)Oracle CorporationCompany has an SEC identifier—view →
  13. Tier 1OCI UK South (London)Oracle CorporationCompany has an SEC identifier—view →
  14. Tier 1CoreWeave Crawley UK (Digital Realty)CoreWeaveCompany has an SEC identifier—view →
  15. Tier 1Alibaba Cloud in United KingdomAlibabaCompany has an SEC identifier—view →
  16. Tier 1Equinix LD5 (London)Equinix, Inc.Company has an SEC identifier—view →
  17. Tier 1Braham Street Data CentreLevel 3 CommunicationsParent linked through filing, registry or supply-chain data—view →
  18. Tier 1RBS Melville Gate Data CentreNatwest GroupCompany has an SEC identifier—view →
  19. Tier 4DataVita DV2DatavitaCompany identified; parent unrecorded—view →
  20. Tier 4US Air ForceUs Air ForceCompany identified; parent unrecorded—view →
  21. Tier 4iomart Glasgow Data CentreIomart GroupCompany identified; parent unrecorded—view →
  22. Tier 4Tata Communications Highbridge DatacentreTata CommunicationsCompany identified; parent unrecorded—view →
  23. Tier 1Joule HouseEquinix, Inc.Company has an SEC identifier—view →
  24. Tier 4Starwood HouseTescoCompany identified; parent unrecorded—view →
  25. Tier 4Pulsant South LondonPulsantCompany identified; parent unrecorded—view →
  26. Tier 4SkywaysVerizonCompany identified; parent unrecorded—view →
  27. Tier 1RBS Data CentreNatwest GroupCompany has an SEC identifier—view →
  28. Data GapDigital Space Data Centre—No operator, site owner or hardware owner linked—view →
  29. Tier 1CyrusOne LON2CyrusoneParent linked through filing, registry or supply-chain data—view →
  30. Tier 4Telefonica Data CentreTelefonicaCompany identified; parent unrecorded—view →
  31. Tier 1Digital Realty LHR17Digital RealtyCompany has an SEC identifier—view →
  32. Data GapVirtus London 1—No operator, site owner or hardware owner linked—view →
  33. Tier 4Edinburgh SC-3PulsantCompany identified; parent unrecorded—view →
  34. Tier 1Equinix LD3Equinix, Inc.Company has an SEC identifier—view →
  35. Tier 1Digital Realty LHR13Digital RealtyCompany has an SEC identifier—view →
  36. Tier 1Digital Realty LHR20Digital RealtyCompany has an SEC identifier—view →
  37. Tier 4Verne Global London Data CentreVerne GlobalCompany identified; parent unrecorded—view →
  38. Tier 4Telehouse WestTelehouseCompany identified; parent unrecorded—view →
  39. Tier 4Pulsant Edinburgh South Gyle SC-1PulsantCompany identified; parent unrecorded—view →
  40. Tier 1Iron Mountain London LON-1Iron MountainCompany has an SEC identifier—view →
  41. Tier 1Morgan Stanley Data CentreMorgan StanleyCompany has an SEC identifier—view →
  42. Tier 4SantanderSantanderCompany identified; parent unrecorded—view →
  43. Tier 4Centurylink London 1CenturylinkCompany identified; parent unrecorded—view →
  44. Tier 4Kao Data KLON-06Kao DataCompany identified; parent unrecorded—view →
  45. Tier 4VodafoneVodafoneCompany identified; parent unrecorded—view →
  46. Tier 1UBS Data CentreUbsCompany has an SEC identifier—view →
  47. Tier 4Pulsant Milton Keynes SE-1PulsantCompany identified; parent unrecorded—view →
  48. Tier 4Venture WestThe Bunker Secure Hosting LtdCompany identified; parent unrecorded—view →
  49. Tier 4The Bunker - South East Data CentreCyberfortCompany identified; parent unrecorded—view →
  50. Tier 1The Chess BuildingDigital RealtyCompany has an SEC identifier—view →

Printed: rows 1–50 of 198. The other 148 are at scrutica.com/country/gb.

Ownership tiers over time

Operating-capacity-weighted shares at each recorded snapshot. Dates are when the distribution was captured; the ownership evidence can be older.

43 snapshots weighted by operating capacity, from 2026-09-23 to 2026-11-04. 144 earlier snapshots weighted every recorded power figure and are listed under Snapshot values.

Snapshots from 11 July 2026 to 23 September 2026 count Epoch’s records at IT power, which Epoch derives by dividing facility power by a peak PUE of 1.2 or 1.4; the snapshots on either side count facility power. The steps at those dates are that change of basis, not a change in capacity. A dashed line marks the step.

  • Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
  • Tier 2 — parent linked through licensed ownership data
  • Tier 3 — parent linked through other sources
  • Tier 4 — company identified; parent unrecorded
  • Data Gap — no company linked
Snapshot values

Displayed MW are rounded to two decimal places. Operating capacity counts operational records only; a snapshot taken before operating weighting began lists only the figure it recorded, every status summed. Download values (JSON) for the full inputs used to calculate the shares. Consecutive snapshots showing the same figures are listed once, under their first and last dates; the download keeps every date.

2026-04-25 – 2026-04-28 · 3 snapshots

214 MW recorded, every status · 196 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
12.55 MW · 61 facilities · 5.9%
Tier 2 — parent linked through licensed ownership data
0 MW · 7 facilities · 0.0%
Tier 3 — parent linked through other sources
0 MW · 5 facilities · 0.0%
Tier 4 — company identified; parent unrecorded
201.45 MW · 90 facilities · 94.1%
Data Gap — no company linked
0 MW · 33 facilities · 0.0%

2026-04-29 – 2026-05-05 · 7 snapshots

334 MW recorded, every status · 199 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
12.55 MW · 62 facilities · 3.8%
Tier 2 — parent linked through licensed ownership data
0 MW · 7 facilities · 0.0%
Tier 3 — parent linked through other sources
0 MW · 5 facilities · 0.0%
Tier 4 — company identified; parent unrecorded
321.45 MW · 92 facilities · 96.2%
Data Gap — no company linked
0 MW · 33 facilities · 0.0%

2026-05-06 – 2026-05-10 · 5 snapshots

334 MW recorded, every status · 199 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
12.55 MW · 62 facilities · 3.8%
Tier 2 — parent linked through licensed ownership data
0 MW · 7 facilities · 0.0%
Tier 3 — parent linked through other sources
0 MW · 5 facilities · 0.0%
Tier 4 — company identified; parent unrecorded
321.45 MW · 91 facilities · 96.2%
Data Gap — no company linked
0 MW · 34 facilities · 0.0%

2026-05-11 – 2026-05-16 · 6 snapshots

334 MW recorded, every status · 199 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
12.55 MW · 62 facilities · 3.8%
Tier 2 — parent linked through licensed ownership data
0 MW · 5 facilities · 0.0%
Tier 3 — parent linked through other sources
0 MW · 5 facilities · 0.0%
Tier 4 — company identified; parent unrecorded
321.45 MW · 93 facilities · 96.2%
Data Gap — no company linked
0 MW · 34 facilities · 0.0%

2026-05-17

334 MW recorded, every status · 200 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
12.55 MW · 62 facilities · 3.8%
Tier 2 — parent linked through licensed ownership data
0 MW · 5 facilities · 0.0%
Tier 3 — parent linked through other sources
0 MW · 5 facilities · 0.0%
Tier 4 — company identified; parent unrecorded
321.45 MW · 94 facilities · 96.2%
Data Gap — no company linked
0 MW · 34 facilities · 0.0%

2026-05-18

334 MW recorded, every status · 202 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
12.55 MW · 64 facilities · 3.8%
Tier 2 — parent linked through licensed ownership data
0 MW · 5 facilities · 0.0%
Tier 3 — parent linked through other sources
0 MW · 5 facilities · 0.0%
Tier 4 — company identified; parent unrecorded
321.45 MW · 94 facilities · 96.2%
Data Gap — no company linked
0 MW · 34 facilities · 0.0%

2026-05-19

214 MW recorded, every status · 199 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
12.55 MW · 63 facilities · 5.9%
Tier 2 — parent linked through licensed ownership data
0 MW · 5 facilities · 0.0%
Tier 3 — parent linked through other sources
0 MW · 5 facilities · 0.0%
Tier 4 — company identified; parent unrecorded
201.45 MW · 92 facilities · 94.1%
Data Gap — no company linked
0 MW · 34 facilities · 0.0%

2026-05-20 – 2026-06-02 · 14 snapshots

334 MW recorded, every status · 203 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
12.55 MW · 65 facilities · 3.8%
Tier 2 — parent linked through licensed ownership data
0 MW · 5 facilities · 0.0%
Tier 3 — parent linked through other sources
0 MW · 5 facilities · 0.0%
Tier 4 — company identified; parent unrecorded
321.45 MW · 94 facilities · 96.2%
Data Gap — no company linked
0 MW · 34 facilities · 0.0%

2026-06-03 – 2026-06-30 · 22 snapshots

114 MW recorded, every status · 198 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
12.55 MW · 69 facilities · 11.0%
Tier 2 — parent linked through licensed ownership data
0 MW · 1 facility · 0.0%
Tier 3 — parent linked through other sources
0 MW · 5 facilities · 0.0%
Tier 4 — company identified; parent unrecorded
101.45 MW · 89 facilities · 89.0%
Data Gap — no company linked
0 MW · 34 facilities · 0.0%

2026-07-01 – 2026-07-10 · 10 snapshots

114 MW recorded, every status · 198 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
12.55 MW · 67 facilities · 11.0%
Tier 2 — parent linked through licensed ownership data
0 MW · 1 facility · 0.0%
Tier 3 — parent linked through other sources
0 MW · 5 facilities · 0.0%
Tier 4 — company identified; parent unrecorded
101.45 MW · 91 facilities · 89.0%
Data Gap — no company linked
0 MW · 34 facilities · 0.0%

2026-07-11 – 2026-08-12 · 33 snapshots

202 MW recorded, every status · 198 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
100.55 MW · 67 facilities · 49.8%
Tier 2 — parent linked through licensed ownership data
0 MW · 1 facility · 0.0%
Tier 3 — parent linked through other sources
0 MW · 5 facilities · 0.0%
Tier 4 — company identified; parent unrecorded
101.45 MW · 91 facilities · 50.2%
Data Gap — no company linked
0 MW · 34 facilities · 0.0%

2026-08-13 – 2026-09-22 · 41 snapshots

202 MW recorded, every status · 198 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
100.55 MW · 67 facilities · 49.8%
Tier 2 — parent linked through licensed ownership data
0 MW · 1 facility · 0.0%
Tier 3 — parent linked through other sources
0 MW · 5 facilities · 0.0%
Tier 4 — company identified; parent unrecorded
11.45 MW · 90 facilities · 5.7%
Data Gap — no company linked
90 MW · 35 facilities · 44.6%

2026-09-23

112 MW operating · 198 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
100.55 MW · 67 facilities · 89.8%
Tier 2 — parent linked through licensed ownership data
0 MW · 1 facility · 0.0%
Tier 3 — parent linked through other sources
0 MW · 5 facilities · 0.0%
Tier 4 — company identified; parent unrecorded
11.45 MW · 90 facilities · 10.2%
Data Gap — no company linked
0 MW · 35 facilities · 0.0%

2026-09-24 – 2026-10-30 · 37 snapshots

148 MW operating · 198 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
136.55 MW · 67 facilities · 92.3%
Tier 2 — parent linked through licensed ownership data
0 MW · 1 facility · 0.0%
Tier 3 — parent linked through other sources
0 MW · 5 facilities · 0.0%
Tier 4 — company identified; parent unrecorded
11.45 MW · 90 facilities · 7.7%
Data Gap — no company linked
0 MW · 35 facilities · 0.0%

2026-10-31 – 2026-11-04 · 5 snapshots

136 MW operating · 198 facilities

Tier 1 — company has an SEC identifier or a parent linked through filing, registry or supply-chain data
124.55 MW · 67 facilities · 91.6%
Tier 2 — parent linked through licensed ownership data
0 MW · 1 facility · 0.0%
Tier 3 — parent linked through other sources
0 MW · 5 facilities · 0.0%
Tier 4 — company identified; parent unrecorded
11.45 MW · 90 facilities · 8.4%
Data Gap — no company linked
0 MW · 35 facilities · 0.0%

Sovereign programme

Isambard AI operational; Sovereign AI launched April 2026; Edinburgh service planned. Operating compute / delivered hardware.

AI Opportunities Action Plan / UK Compute Roadmap / AIRR / Sovereign AI Unit / AI Hardware Plan

Isambard-AI’s full 5,448-GH200 system opened in Bristol on 17 Jul 2025, providing research compute through the AI Research Resource alongside Cambridge’s Dawn. The July 2025 Compute Roadmap targets 420 AI ExaFLOPS of public capacity by 2030, up from 21 in 2025. Sovereign AI launched in April 2026 with a £500M fund, direct equity investment and access to public supercomputers for startups. The June 2026 hardware plan includes a mixed-chip AI machine targeted for 2030; Edinburgh’s planned £750M national supercomputing service is a separate project.

Partners: NVIDIA, Nscale, CoreWeave, Microsoft, British Business Bank, EPCC, University of Bristol, Balderton Capital (James Wise, Sovereign AI Unit chair), AI Safety Institute.

Programme record and sources

Export controls

A curated summary of country-level restrictions and selected chip statuses, from country-group membership and licensing policy, reviewed 17 Jul 2026.

35 Entity List designations against organisations located here.

The UK launched its £500 million Sovereign AI programme in April 2026.

Recorded as availableH100H200B200MI300XMI325X

The UK launched Sovereign AI on 16 Apr 2026, with £500 million to support domestic AI companies. Its support includes investment and access to computing resources.

Sources: UK Sovereign AI launch and support, April 2026.

Suppliers and customers

21 relationships involve companies here, 14 as supplier and 7 as customer.

The United States is the largest customer country, with 12 relationships, and the largest supplier country, with 5.

Supplier countries
Based in
Customer countries
United States
5
12

Organisations

By market value band: the 1 with a recorded figure, of 43 organisations listed here.
$100–200BARM
All 43 organisations
Organisations headquartered here
ARMChip Designer$100–200B
Alphawave IP
Ark Data Centres
ASML (UK) Ltd.
BAE Systems
British Land
Bt
BT Group
Calnex Solutions
Cassava Technologies
Cirrus Logic International Holdings
Cobham

Related pages

Sources

Sources are matched by ISO country code; operating capacity and ownership shares count operational records only, from the same facility rollup.
5 sources
SourceDate
Epoch AI frontier data centers and GPU clusters
Export-control rules (US EAR, Dutch and Japanese regimes)2026-07-17
BIS Entity List via the Consolidated Screening List and the Federal Register
Sovereign AI programme register
Licensed market-data snapshot · market capitalisation bands
Data
How the figures were made

Geography. Outlines use Natural Earth de facto boundaries. Distant parts may be omitted; located records outside the drawing are counted in its caption. Power circles use the same scale across countries.

Counts. Counts retrieved 4 Nov 2026. Operating capacity and ownership shares include estimated capacity; a campus figure recorded as its full build-out, earlier phases and second records are shown apart rather than counted. Sovereign programme ratios use government-only announced amounts where available; each ratio lists its numerator and denominator.

Corporate traceability. No company linked means no operator, site owner or hardware owner has been linked to the facility. The tiers do not verify property ownership or facility operation. Announced and under-construction figures are not counted here. Tiers classify the available sources for a company linked to each facility. A linked company’s SEC identifier can qualify it for the first tier without establishing a parent. Ownership relationships and their sources are listed on the facility and company pages.

Export-control posture. Recipient and end-use conditions can change the outcome of a transaction. Classification review: 17 Jul 2026. Access basis: 1.00. This value encodes destination-level access for the listed accelerators. The recipient or end use can still trigger a license requirement.

Capacity over time. Records not yet operating, campus build-out figures and earlier phases of operating clusters are not in the line. Changes can reflect new capacity, revised estimates or additional sources. 2 historical snapshots from 1 Sep 2025 to 23 Apr 2026. Each point sums the latest available power figure for every facility operating today with a snapshot by that date (1 facility in the latest historical total). These are the timeline’s own readings, which can differ from a facility record’s current figure; the operating capacity stated above sums the records.

Bilateral supply-chain partners. Counts include every tracked relationship; no dollar amounts are published for them.

Organisations headquartered here. Across all industries; multiple identifiers may refer to the same company. The record lists 43 distinct organisations with qualifying market-capitalisation or linked-record evidence, after reviewing all public organisation rows for United Kingdom; the source holds 3,952 organisation rows, including duplicate identities and rows without qualifying evidence, and the company register applies its own evidence scope. A type is shown only where the classification has been reviewed. Market capitalisation: bands from a licensed market-data snapshot, 1 Apr 2026 (authority tier 2; exact figures held under licence).

Corrections to this page, 2
Identifiers
ISO country code
GB