Nscale Loughton
Announced; Nscale is recorded as an owner of this site
Nscale’s Loughton AI campus in Essex — the company’s first UK site, whose purchase it announced on 2025-01-13. On 2025-09-16 Nscale and Microsoft announced a commitment on the campus: 50 MW of AI capacity scalable to 90 MW, initially housing 23,040 NVIDIA GB300 GPUs delivered in Q1 2027, with the facility to “play a vital role in providing Microsoft’s Azure services across the UK.” That chip figure supersedes Nscale’s own January 2025 statement that the site could “house up to 45,000 of the latest Nvidia GB200 GPUs” — a site-capacity ceiling rather than a committed deployment. Both figures are Nscale’s: the substrate preserves the January transcription and the displayed chip, FLOP and H100-equivalent values carry the September commitment through the editorial corrections overlay.
Source: Epoch AI GPU Clusters
Date in site records: Sep 16, 2025. Site data: Epoch AI GPU Clusters.
Ownership and operation
Site owner · last stated Jan 2025 Nscale. “Nscale has confirmed its first UK data centre with the purchase of a site in Loughton.” source
Capacity customer (announced)
Export controls and government links
No export-control designations were found in the checked company chains.
Headquarters jurisdiction
A company in the ownership chain is headquartered in the United Kingdom
United Kingdom: Post-Brexit operates its own dual-use control regime via the Export Control Joint Unit (ECJU); UK Sanctions and Anti-Money Laundering Act 2018 underpins targeted measures. Export-control regimes listed for this jurisdiction: Wassenaar Arrangement, UK Strategic Export Controls.
Capacity
Facility power
Estimated. Not operating capacity: announced.
Power for IT equipment
Accelerators
58,211 H100-equivalent. Not operating capacity: announced.
Present inventory by partition
withheld Facility status is announced, not operational.
45,000 × NVIDIA GB200 (estimated)
status not stated (from the facility status)
Held: Not present capacity. Part of the inventory has no recognized deployment status.
Catalogue row; no partition-level source recorded
One partition is held, so no facility figure is derived; the held partition’s count and source remain visible and nothing is substituted for its rate. Rates are the cited dense FP16 figure per accelerator; the sum applies the methodology’s utilization and interconnect assumptions and is a theoretical aggregate, not one job’s throughput. The catalogue figures above are the record’s scalar fields (the source’s transcription, or its recorded correction) and are a different basis.
Power comparison
90 MW is not placed among operating AI Training figures (announced).
- A newer operator disclosure supersedes an earlier statement this record once showed. The substrate row transcribes Nscale’s January 2025 site-capacity ceiling (45,000 NVIDIA GB200). Nscale’s September 2025 release with Microsoft commits 23,040 NVIDIA GB300 delivered in Q1 2027. Displayed chip, FLOP and H100-equivalent values carry the September figure through the editorial corrections overlay; the accelerator-inventory panel renders the corrected count against the substrate’s hardware type, so GB200 may still appear as the model name until an Epoch refresh carries the GB300 line.
Methods and sources
Ownership roles
Title identifies the legal owner of the site; operation identifies who runs it. AI-hardware ownership follows the catalog’s attribution of the machines inside, whose owner may lease the facility.
Each role requires its own attribution. An operator named in a source supplies evidence of operation only.
Parent companies
Ownership checks start with each company named at the site and follow recorded parent relationships. A company holding several roles is checked once. Its linked company page lists the relationships and their sources; further parents may remain undocumented.
Level 1 identifies a company at the site, level 2 its parent, and each further level another parent. Export-control designations and government investments are assigned to the company concerned.
Missing values
Unrecorded roles remain blank. Findings whose company position is unresolved stay in the list with that position labelled unknown.
Publication limits
Subscription corporate data helps identify parent relationships and sovereign investments. Publication is limited to relationship classes and supporting public sources; licensed records, identifiers and values are withheld.
Epoch AI estimates capacity using satellite imagery, permits and corporate disclosures. Its catalog is the source for this site record.
Related analysis
- Nscale Loughton in the threshold comparisonEach listed site’s estimated compute against regulatory training thresholds, or the reason no estimate is admitted.
- Allied coordination: Allied-partial in chainThe Allied Coordination Gap Analyzer lists this site under that class of ownership chain.
- United Kingdom country profileFacility capacity, government programmes and export-control access for the country this site is in.
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