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Ownership roles. The site owner, operator and AI-hardware owner can be different companies. 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: a role is shown only where its own source establishes it. An operator named in a source supplies evidence of operation only, and no role implies exclusive control of the full site.

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. Each finding is assigned to the company it concerns.

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. Per-fund identities and amounts are withheld.

Estimates. Figures from OpenStreetMap (tagged data centers) retain the source’s estimate flags. The tilde marks an estimate.

Compiled. Compiled 3 Nov 2026. Dates attached to findings refer to the source evidence.