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# Nebius Mantsala

Facility record `fac-epoch-nebius-mantsala` — data source: Epoch AI — frontier data centres (https://epoch.ai/data/data-centers); authority tier 2; contains estimated values (is_estimated: true)

| Field | Value |
| --- | --- |
| Type | AI Training |
| Status | Operational |
| Location | Uusimaa, FI (60.629222, 25.260389) |
| Location in the source's words | Epoch AI Frontier Data Centers gives the city as “Mantsala” and the state as “Uusimaa” \(download of 30 October 2026\). |
| Facility power | 90 MW |
| Power is operating capacity | yes |
| IT load | 75 MW |
| GPU count | not published |
| H100-equivalents | 48,527 |
| Peak PFLOPS (FP16) | not published |
| Site owner | The site owner is unrecorded. |
| Site operator | No organisation is recorded as operating this site. |
| AI hardware owner | Nebius |
| Announced | not published |
| Operational | not published |

## Role evidence

Each role is stated only as the relationship its own source establishes.

- **AI hardware owner: Nebius.** Epoch AI's field for who owns the AI hardware, which it defines as not necessarily the owner or operator of the facility. “Owner: Nebius \#confident” [Source](<https://epoch.ai/data/data-centers>)

## Organisations recorded at the site

### Microsoft Corporation — Uses the compute \(source marks speculative\)

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

The relationship is inferred.

Recorded start date: not stated. Recorded end date: not stated.
[Epoch AI Frontier Data Centers](<https://epoch.ai/data/data-centers>)

## Campus: Nebius Mäntsälä, Finland

These records describe the same physical site at different scopes, and their power figures are never added together. Across the platform, recorded totals count the canonical member once; operating totals count a member's figure only if it is operating capacity.
Note: Five records describe Nebius's data center in Mäntsälä: Epoch's site record, three GPU clusters inside it and a mapped building. Recorded and operating totals use the site record's 90 MW. The clusters keep their accelerator counts.

| Member | Status | Scope | Power (MW) | Operating capacity | Canonical for power | Source |
| --- | --- | --- | --- | --- | --- | --- |
| [Nebius Mantsala](https://scrutica.com/facilities/fac-epoch-nebius-mantsala) | Operational | site total | 90 | yes | yes | Epoch AI Frontier Data Centers |
| [Nebius 8k Finland Phase 1](https://scrutica.com/facilities/fac-epoch-gc-nebius-8k-finland-phase-1) | Operational | named cluster (phase 1) | 11.4 | no (earlier phase of an operating cluster) | no | Epoch AI GPU Clusters |
| [Nebius Finland Phase 2](https://scrutica.com/facilities/fac-epoch-gc-nebius-finland-phase-2) | Announced | named cluster (phase 2) | 84.1 | no (announced) | no | Epoch AI GPU Clusters |
| [Nebius ISEG](https://scrutica.com/facilities/fac-epoch-gc-nebius-iseg) | Operational | named cluster | 2.2 | yes | no | Epoch AI GPU Clusters |
| [Global DC OY](https://scrutica.com/facilities/fac-osm2-w846760920) | Operational | — | — | — | no | Documented ownership record |

## Cite

> Scrutica, "Nebius Mantsala" (facility record), https://scrutica.com/facilities/fac-epoch-nebius-mantsala; data source: Epoch AI — frontier data centres; accessed 2026-10-31.

Full interactive record: https://scrutica.com/facilities/fac-epoch-nebius-mantsala · Methodology for derived values: https://scrutica.com/methodology#flop-estimation · All programmatic surfaces: https://scrutica.com/agents