Eclairion Bruyères-le-Châtel (Mistral Compute)
Operational; Eclairion is recorded as an owner of this site and is recorded as an operator of it
Mistral Compute hosting site at Bruyères-le-Châtel (Essonne, ~30 km south of Paris), owned and operated by French DC firm Eclairion. Hosts Mistral AI's first dedicated AI cluster: 13,800 NVIDIA GB300 Grace-Blackwell GPUs across 44 MW of powered capacity. Financed by Mistral's $830M debt raise announced 2026-03-30; operational target end-June 2026. First node in Mistral's broader 200 MW European compute roadmap (Sweden additional cluster planned).
Date in site records: Mar 30, 2026. Site data: Mistral Compute press announcements.
Ownership and operation
Site owner · per third-party report
Which organisation holds the site?
Site operator · per third-party report
Which organisation runs it?
AI hardware owner
Which organisation owns the AI hardware inside it?
Site owner · per third-party report Eclairion. “a data center in Bruyères-le-Châtel, south of Paris, which is owned and run by French data center firm Eclairion” source
Site operator · per third-party report Eclairion. “a data center in Bruyères-le-Châtel, south of Paris, which is owned and run by French data center firm Eclairion” source
Tenant
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 France
France: Service des biens à double usage (SBDU) administers EU Regulation 2021/821 and the French dual-use code. Export-control regimes listed for this jurisdiction: Wassenaar Arrangement, EU Dual-Use Regulation 2021/821, EU Delegated Regulation 2025/2189.
Capacity
Power capacity
Source-reported power.
Power for IT equipment
Accelerators
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.
Related analysis
- Eclairion Bruyères-le-Châtel (Mistral Compute) on the global mapOpens the map at this site’s pin, among the facilities around it.
- Eclairion Bruyères-le-Châtel (Mistral Compute) in the threshold comparisonEach listed site’s estimated compute against regulatory training thresholds, or the reason no estimate is admitted.
- Allied coordination: Ownership chain incompletely recordedThe Allied Coordination Gap Analyzer lists this site under that class of ownership chain.
- France country profileFacility capacity, government programmes and export-control access for the country this site is in.
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