Iron Mountain Data Centers is the data center business of Iron Mountain Incorporated (NYSE: IRM). At the end of 2025 it operated 31 data centers in 21 markets with 488.2 MW of leasable capacity. Its 2025 sustainability report gives a PUE of 1.41 and 100% of customer IT load matched with renewable power.
It provides colocation, build-to-suit and hyperscale data center capacity for enterprises, cloud providers and government customers.
Source: ironmountain.com
As of Q4 2025, 31 data centers in 21 markets with 488.2 MW leasable. The largest markets are Northern Virginia (230.4 MW) and Phoenix (145.5 MW), with sites in London, Amsterdam and Singapore. The total portfolio was 1,339.9 MW including development.
Source: sec.gov, ironmountain.com
The 2025 report gives a PUE of 1.41, a WUE of 0.82 and 100% of customer IT load matched with renewable power. It holds ISO 14001 and ISO 50001 globally plus BREEAM and ENERGY STAR. Iron Mountain's near-term, long-term and net-zero targets are SBTi-validated (checked October 16, 2026).
Source: Report (PDF), Report (PDF), sciencebasedtargets.org
It suits hyperscale and enterprise buyers in major US and international markets that want renewable matching and detailed sustainability reporting.
| Field | Value | Source |
|---|---|---|
| Headquarters | No data | NO DATA |
| Founded | No data | NO DATA |
| Ownership | Iron Mountain Inc. (NYSE: IRM) | PUBLIC SOURCE sec.gov |
| Employees | No data | NO DATA |
| Revenue (published) | No data | NO DATA |
| Operations and regions | No data | NO DATA |
| Customers and markets | No data | NO DATA |
| Facilities and capacity | 31 data centers, 21 markets, 488.2 MW leasable (Q4 2025) | PUBLIC SOURCE sec.gov |
| Technologies | No data | NO DATA |
| Certifications and standards | ISO 14001 and ISO 50001 (global); BREEAM; ENERGY STAR | COMPANY WEBSITE Report (PDF) (p. 21) |
| Partners and named customers | No data | NO DATA |
Only what the company or an official register publishes. Targets and commitments are labelled as such. No data means we found no public figure, not that none exists.
| Field | Value | Source |
|---|---|---|
| PUE (published) | 1.41 ACHIEVED Year: 2025 | COMPANY WEBSITE Report (PDF) (p. 22) |
| WUE (published) | 0.82 ACHIEVED Year: 2025 | COMPANY WEBSITE Report (PDF) (p. 22) |
| Renewable energy share | 100% of customer IT load matched with renewable power ACHIEVED Year: 2025 | COMPANY WEBSITE Report (PDF) (p. 22) |
| SBTi target status | Near-term: Validated Targets; Long-term: Validated Targets; Net-zero: Validated Targets (SBTi entity: Iron Mountain, parent company) | PUBLIC SOURCE sciencebasedtargets.org |
Research note: Own website blocked automated fetch; facts above come from public sources.
31 in 21 markets as of Q4 2025. (sec.gov)
1.41 in its 2025 sustainability report. (Report (PDF))
Yes. Its near-term, long-term and net-zero targets are validated. (sciencebasedtargets.org)
Accessed Oct 24, 2026.
