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FORTRUST announced a Denver data center expansion on November 15, 2016, adding 1.5 megawatts (MW) of capacity in high-density data modules. Iron Mountain acquired FORTRUST’s Denver data center business in 2017 and now markets the site as DEN-1. Its current facility page lists 14.4 MW of power capacity.
What did FORTRUST add in Denver?
The 2016 announcement described an addition of 1.5 MW in high-density data modules to meet demand for colocation customers needing more power and rack density. That was a dated expansion announcement, not evidence of a current construction project. FORTRUST COO Robert D. McClary attributed the decision to increased customer demand for high-density services across multiple industries. FORTRUST’s November 15, 2016 announcement contains the company’s explanation.
How did the site’s reported capacity change over time?
The figures below describe different dates and scopes; they should not be read as a like-for-like capacity series.
| Date and source | Reported figures | What the figures describe |
|---|---|---|
| September 14, 2015, FORTRUST | More than 300,000 square feet; 34 MW | A historical company statement about the site. Its scope is not reconciled with Iron Mountain’s current DEN-1 figures. 2015 announcement. |
| November 15, 2016, FORTRUST | 1.5 MW added | New high-density data-module capacity, not the facility’s total capacity. 2016 announcement. |
| July 28, 2017, Iron Mountain acquisition announcement | Approximately 9 MW existing; about 38,000 rentable square feet of potential expansion space for another 7 MW | Transaction-era description of FORTRUST’s Denver business, not a current specification. Acquisition announcement. |
| April 1, 2026, Iron Mountain location overview | 179,666 square feet; 14.4 MW | Facility figures on the dated location overview. Location overview. |
| Current Iron Mountain DEN-1 page, accessed October 8, 2026 | 180,000 square feet; 14.4 MW | Rounded area and power capacity presented on the facility service page. DEN-1 page. |
The 2017 acquisition announcement’s potential 7 MW addition was an opportunity described at the time, not proof that those exact plans were completed. Iron Mountain’s current DEN-1 materials report 14.4 MW. The sources do not explain the differing facility-area and capacity scopes behind FORTRUST’s 2015 statement and Iron Mountain’s present-day figures, so the numbers do not establish a direct reduction or expansion between those snapshots.
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Who operates the former FORTRUST Denver facility now?
Iron Mountain announced its acquisition of FORTRUST’s Denver data center business in July 2017. The company currently presents the Denver facility as DEN-1. Iron Mountain’s current facility page describes colocation choices including cabinets, cages, suites, and data center modules, as well as carrier and cloud neutrality, redundant systems, and 100% matched renewable energy. These are provider descriptions of its own service and facility.
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- Easy equipment configuration: Fully adjustable mounting rails and numbered U positions, with square holes for easy equipment mounting with top and bottom punchout panels for easy cable access
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What the figures do—and do not—show
- The 1.5 MW figure refers to capacity FORTRUST said it was adding in 2016; it is not a total-site figure.
- The approximately 9 MW existing capacity and possible additional 7 MW were reported in the context of the 2017 acquisition.
- Iron Mountain’s current materials list DEN-1 at 14.4 MW. One page rounds the facility area to 180,000 square feet, while its April 2026 overview lists 179,666 square feet.
- All figures cited here are company-reported facility statements. They do not establish broader data-center-market trends or independently audited comparisons.
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