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Iron Mountain
Fastest-growing datacenter REIT laggard; ~25% DC revenue growth on AI hyperscale leasing
HQ US
Recent Business Signals
Jun 1, 2026
partnership
Iron Mountain was named 2026 Google Cloud Partner of the Year for Business Applications: Media & Entertainment in early 2026.
source: funding-research
Jun 1, 2026
product_launch
Iron Mountain expanded its data center capacity to 1.3 gigawatts by 2026, nearly tripling prior capacity, with 96% occupancy.
source: funding-research
Apr 1, 2026
product_launch
Iron Mountain secured 32 megawatts of data center leasing through April 2026, with management projecting total leasing could surpass the 100 MW target for the year.
source: funding-research
Funding & valuation history
Sep 5, 2025 · funding-research
Iron Mountain raised $1.4 billion in Post-IPO Debt on September 5, 2025.
Strategic Position
What they do best
Compounding off a small base: ~25% Data Center revenue growth in Q1 2025 (680af397) after a record ~125 MW leased in 2024 (caedf135).
Their bet
Convert >1 GW of developable capacity anchored at Manassas (4f829eea) into a third growth engine, riding AI-era hyperscale demand to close the gap with DLR/EQIX.
Top risk
FY2025 total leasing falls short of the ~125 MW 2024 record management is targeting (e8298bda), exposing the AI pipeline as slower-converting than peers — testable at Q4 2025/FY results.
Forward view
Derived from public capacity & product announcements — not a company-authored roadmap.
product launch · Jun 1, 2026
Iron Mountain expanded its data center capacity to 1.3 gigawatts by 2026, nearly tripling prior capacity, with 96% occupancy.
product launch · Apr 1, 2026
Iron Mountain secured 32 megawatts of data center leasing through April 2026, with management projecting total leasing could surpass the 100 MW target for the year.
Compared to peers
Direct competitor
Digital Realty
Same colo-REIT model but Iron Mountain is far smaller / underweight on footprint while growing DC revenue (~25%) faster than DLR's larger pre-leased base.
Substitute
Compass Datacenters
Hyperscalers can bypass REIT colo via Compass's single-tenant 50-200 MW build-to-suit campuses instead of leasing Iron Mountain shell capacity.
Why someone would join
- 1.Data Center segment grew ~25% YoY in Q1 2025 (signal 680af397) with ~17 MW signed that quarter after a record ~125 MW in 2024 — joining a unit outgrowing the parent's 8% total.
- 2.2026 reqs for a Director, Energy and Grid Strategy (2026-03-25) and a liquid-cooling Senior Mechanical Engineer (2026-04-28) staff the >1 GW Manassas-anchored buildout — net-new capacity, not backfill.
Recent Hiring (60 days)
No specialty signals in the last 60 days.