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Iron Mountain
Fastest-growing datacenter REIT laggard; ~25% DC revenue growth on AI hyperscale leasing
HQ US
Recent Business Signals
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.
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.