Proprietary data
Iron Mountain Data Centers
Data centers operated by Iron Mountain that we have verified: location, status and capacity, each checked against its source.
By Amit Jain
Reviewed by Deepti Agrawal
Updated 8 Oct 2026
In short
As of 8 October 2026, DC Market Insights tracks 20 data centers operated by Iron Mountain in 4 countries, of which 15 are operational. Stated operational capacity is 308 MW, with a further 25 MW under construction and — planned. The pipeline is 0.1 times the capacity already operating.
MW = IT capacity where the source states it, otherwise total capacity. 14 of 20 facilities have a stated capacity; the others are counted as sites only.
Market snapshot
Iron Mountain data centers: key facts
About Iron Mountain
Iron Mountain Incorporated runs a data center business, Iron Mountain Data Centers, that provides colocation for cloud and AI infrastructure. As stated on its website in October 2026, it has a 1.4GW portfolio across three continents, with sites in North America, EMEA and APAC.
- Headquarters
- Portsmouth, United States
- Founded
- 1951
- Ownership
- Listed on NYSE (IRM)
- Tracked footprint
- 20 facilities in 4 countries
- Website
- ironmountain.com
Company details checked against company and official sources, 7 Oct 2026.
- Capacity under construction or planned (25 MW) is 0.1 times the operational base of 308 MW.
- Its largest operational site is Iron Mountain AZP-2 Phoenix in Phoenix, United States at 48 MW.
- The largest project in the pipeline is Iron Mountain LON-3 (25 MW, under construction).
- United States accounts for 68% of tracked capacity (14 facilities).
- By type, the tracker lists 19 colocation and 1 hyperscale facilities.
- 14 of 20 facilities have a capacity stated by their source; the totals above count only those.
Source: DC Market Insights Data Center Tracker. MW as stated by each facility source.
OperationalUnder construction or planned
Source: DC Market Insights Data Center Tracker. MW as stated by each facility source.
Iron Mountain development pipeline
Under construction and planned facilities with a stated capacity, largest first. 25 MW under construction and — planned in total.
| Project | Location | Status | Type | Capacity |
|---|---|---|---|---|
| Iron Mountain LON-3Iron Mountain | Slough, United Kingdom | Under construction | Colocation | 25 MW |
Facilities
20 facilities match. Each is checked against its source; source links come with the Excel data.
| Facility | Location | Status | Capacity | Year | Source |
|---|---|---|---|---|---|
| Iron Mountain AZP-2 PhoenixColocation | Phoenix, United States | Operational | 48 MW IT | — | Operator / official |
| Iron Mountain AZP-1 PhoenixColocation | Phoenix, United States | Operational | 41 MW IT | — | Operator / official |
| Iron Mountain AZP-3 PhoenixColocation | Phoenix, United States | Operational | 36 MW IT | — | Operator / official |
| Iron Mountain VA-2 (Manassas)Colocation | Manassas, United States | Operational | 36 MW total | — | Operator / official |
| Iron Mountain VA-6 (Manassas)Colocation | Manassas, United States | Operational | 32 MW total | — | Operator / official |
| FRA-1Colocation | Frankfurt am Main, Germany | Operational | 27 MW total | — | Operator / official |
| Iron Mountain LON-2Hyperscale | Slough, United Kingdom | Operational | 27 MW total | — | Operator / official |
| Iron Mountain LON-3Colocation | Slough, United Kingdom | Under construction | 25 MW total | — | Operator / official |
| Iron Mountain WPA-1 (Boyers)Colocation | Boyers, United States | Operational | 15.5 MW total | — | Operator / official |
| Iron Mountain VA-1 (Manassas)Colocation | Manassas, United States | Operational | 12.4 MW total | — | Operator / official |
| FRA-2Colocation | Frankfurt am Main, Germany | Operational | 11 MW total | — | Operator / official |
| Iron Mountain LON-1Colocation | Slough, United Kingdom | Operational | 8.8 MW total | — | Operator / official |
| SIN-1Colocation | Singapore, Singapore | Operational | 7.3 MW total | — | Operator / official |
| Iron Mountain AZS-1 ScottsdaleColocation | Scottsdale, United States | Operational | 5.8 MW IT | — | Operator / official |
| Iron Mountain NJE-1 (Edison)Colocation | Edison, United States | Operational | — | — | Operator / official |
| Iron Mountain Northern Virginia Campus (Manassas)Colocation | Manassas, United States | Operational | — | — | Operator / official |
| Iron Mountain RCH-1 (Richmond)Colocation | United States | Planned | — | — | Operator / official |
| Iron Mountain RCH-2 (Richmond)Colocation | United States | Planned | — | — | Operator / official |
| Iron Mountain RCH-3 (Richmond)Colocation | United States | Planned | — | — | Operator / official |
| Iron Mountain RCH-4 (Richmond)Colocation | United States | Planned | — | — | Operator / official |
How we build the tracker
- Sources: operator websites and announcements, stock-exchange filings, planning and government records, and named trade publications. Never another directory.
- A second analyst re-opens each source before a facility is published.
- Capacity, size, year, tier and PUE appear only when the source states them. Nothing is estimated.
- Status: operational, under construction (building work started) or planned (announced or permitted, not yet under construction).
- Map locations: the source’s address where given, otherwise the city centre (approximate).
- Maps: Natural Earth (public domain). City locations: GeoNames, licensed under CC BY 4.0.
Questions
How many data centers does Iron Mountain operate?
DC Market Insights tracks 20 Iron Mountain data centers in 4 countries as of October 2026: 15 operational, 1 under construction and 4 planned.
Where is Iron Mountain headquartered?
Iron Mountain is headquartered in Portsmouth, United States. Ownership: Listed on NYSE (IRM).
Where does this data come from?
Every facility comes from a page we opened: the operator’s own website or announcement, a stock-exchange filing, a planning or government record, or a named trade publication. A second analyst re-opens the source and checks the name, location, status and capacity before the row is published. We do not copy other data center directories.
What does the MW figure mean?
We show IT (critical) capacity when the source states it, otherwise the total or utility capacity the source gives, and say which in the facility’s note. When a source gives no capacity, the field stays empty. We never estimate it.
How exact are the map locations?
When the source gives an address or coordinates we use them. Otherwise the dot sits at the centre of the facility’s city (marked as approximate), using the GeoNames gazetteer.
How often is it updated?
The tracker is updated every week as new facilities are announced and existing ones change status. Each row shows the date it was last checked.
Can I get the data in Excel?
Yes. Each country with 50 or more facilities has a Capacity Sheet in Excel with every facility, its source link, the status history and summaries. Our analysts can also prepare an operator extract or a custom cut.
Need the full list, or a capacity view of one market?
Our analysts prepare country and operator extracts in Excel, capacity pipelines and site-selection briefings.