IRM · Q3 2025 Earnings

Q2 2025 anchor: "Sustaining double-digit growth" → Q3 2025 anchor: "Sustaining is now operational reality, with 2026 pre-leased"

Data center demand thesis hardened from forward-looking pivot to executed re-acceleration. Last quarter management was arguing that hyperscaler dollars would rotate back from LLM-training mega-campuses toward inference/cloud footprints where Iron Mountain plays — a forward bet that justified the soft 30–80MW 2025 signings range. This quarter the language sharpened: "We have seen a shift back to our largest hyperscale customers, back to inference and cloud build-out…the depth of that pipeline and the number of our customers coming back to that, again, for cloud build-out and inference, is very marked versus the first half of 2025." Combined with the +33.2% segment growth this quarter (vs +24.0% in Q2) and the >25% 2026 commitment, the demand pivot is no longer a hypothesis investors have to underwrite — it is showing up in the print.

ALM moved from "core growth pillar" to "structural growth engine with embedded scale." Last quarter ALM was reframed as a strategic pillar at $153M (+42% organic). This quarter ALM revenue printed $169M, +65% reported and +36% organic, and management credited the growth-businesses portfolio (ALM + data center + digital) with two-thirds of total revenue growth. The language — "ALM, drove two-thirds of our revenue growth in the quarter…expected to be nearly 30% of total revenue exiting 2025" — converts ALM from a fast-growing segment into the gravitational center of the revenue story. The risk vector also shifted: management explicitly flagged memory and hard-drive component pricing volatility as a discrete variable, which is a more sophisticated risk framing than last quarter's "single-digit million" pricing dismissal.

Treasury/DXP reframed from pilot-scale federal contract to platform validation. Last quarter Treasury was disclosed as $1M in Q2 with sub-$5M in Q3, the larger rebid still pending. This quarter that rebid was awarded as a new five-year contract with a value of up to $714M, subsuming the prior April award; Q3 Treasury revenue was ~$2M with Q4 expected at ~$4M before ramping into the spring 2026 tax season. Management's framing escalated: "it's another proof point in terms of the technology that we built with this DXP platform…and in this particular case, the IRS, which is very sophisticated." Pairing the IRS with the broader Treasury award, management is now using federal validation as the technical proof point for enterprise selling — a more confident posture than the conservative ramp commentary from Q2.

Margin expansion is now a numbered, defensible algorithm. Last quarter margin commentary was qualitative. This quarter management put hard numbers on the table: 37.6% EBITDA margin, +110bps YoY, on 47% incremental flow-through "consistent with last quarter." A repeatable flow-through ratio is a more durable signal than a one-quarter beat, and it is what supports the implicit FY range coming in at or above midpoint.

Capacity confidence elevated to multi-year visibility. Last quarter Heitman was defending capex by noting pre-leased Arizona/London/Northern Virginia assets. This quarter Meaney makes the magnitude claim explicit: "These assets coming online within the next two years have a collective capacity, which is the size of our current operating portfolio." That is roughly a doubling of the operational footprint with the leases largely already signed — a fundamentally different risk profile than a speculative build-out.