Skip to main content
Scrutica

Nebius Mantsala

TypeAI TrainingStatusOperationalWhereUusimaa, FIIndexed fromEpoch AI Frontier Data Centers

Operational; Nebius is recorded as owning the AI hardware inside this site

1/3site roles identified1 site relationship1 finding in the company chain0 export-control designationsFurthest finding: company at site

Date in site records: Jun 29, 2026. Site data: Epoch AI Frontier Data Centers.

Ownership and operation

Plate I. Site owner, operator and hardware ownerscrutica.com · data to Jun 29, 2026

AI hardware owner · per catalog

Nebius parent ownership unresolved 1 finding

Which organisation owns the AI hardware inside it?

Nebius MantsalaSite

AI hardware owner · per catalog Nebius. “Owner: Nebius #confident” source

Companies are grouped by their role at the site, with recorded parents above them. No parent companies were found in the ownership data. Further ownership remains unresolved where labelled. Record source: Epoch AI Frontier Data Centers; authority tier 2. Ticks count the export-control and government-link findings for each company.
Plate II. Organisations recorded at the sitescrutica.com · data to Jun 29, 2026

Uses the compute (source marks speculative)

Microsoft Corporationinferred

Named in Epoch AI's field for labs using the compute; it records use, not a lease.

Epoch AI Frontier Data Centers source

One relationship is recorded at Nebius Mantsala, labelled “Uses the compute (source marks speculative)”. It is marked inferred: the relationship itself was derived from other records.

Export controls and government links

No export-control designations were found in the checked company chains.

Plate III. Export controls and government linksscrutica.com · data to Jun 29, 2026
site1A company in the ownership chain is headquartered in the Netherlandscompany levels
Company at site

Headquarters jurisdiction
A company in the ownership chain is headquartered in the Netherlands

Netherlands: Operates the EU dual-use framework plus discrete national export rules on advanced semiconductor manufacturing equipment (DUV/EUV) introduced in 2023. Export-control regimes listed for this jurisdiction: Wassenaar Arrangement, EU Dual-Use Regulation 2021/821, Dutch national semiconductor-equipment rules.

Triangle: export-control designation or regulatory flag. Square: sovereign capital linkage. Circle: headquarters jurisdiction. Level 1 is a company at the site; higher levels are its parents.

Capacity

90 MW

Facility power

Estimated.

75 MW

Power for IT equipment

Estimated.

not recorded

Accelerators

An estimated 48,527 H100-equivalent.

Nebius Mäntsälä, Finland has 5 records, and their power figures are never added together:

  • Nebius Mantsala90 MW, operational, scope: site total, operating capacity. Epoch AI Frontier Data Centers
  • Nebius 8k Finland Phase 111 MW, operational, scope: named cluster (phase 1), not operating capacity (earlier phase of an operating cluster). Epoch AI GPU Clusters
  • Nebius Finland Phase 284 MW, announced, scope: named cluster (phase 2), not operating capacity. Epoch AI GPU Clusters
  • Nebius ISEG2 MW, operational, scope: named cluster, operating capacity. Epoch AI GPU Clusters
  • Global DC OYNo power figure, operational. Documented ownership record

Power comparison

90 MW is at the 85th percentile among the 310 operating AI Training records with a reported power figure. These represent 84% of the 369 operating AI Training records tracked; announced, under-construction and campus build-out figures are not ranked. The scale ends at the largest operating figure in this group, 1,276 MW.