Iron Mountain (IRM) ☆

Iron Mountain stores and manages physical records for, per its FY2025 10-K, more than 240,000 customers in 61 countries, "including approximately 95% of the Fortune 1000", with "no single customer accounting for more than approximately 3% of revenue". Revenue was $6,901,737 thousand in 2025, of which the Global RIM segment contributed $5,291,481 thousand and the Global Data Center segment $803,429 thousand. The records business is the moat. Storage rental agreements "generally range from one to five years in length", the company says it has "consistently experienced strong customer retention levels", and a 2016 Department of Justice complaint described Iron Mountain as "the largest RMS company in the United States" and permanent withdrawal fees as a barrier to rivals winning customers. That lock-in shows up as pricing: MD&A attributes Global RIM storage growth to "revenue management" while Item 1A says volumes "were relatively steady in 2025". The threat is substitution: activity is declining as records become "less active and more archival", and a shift to non-paper storage "could adversely affect our businesses". The growth arms sit outside that moat. The company operated 31 data centers across 21 markets with 488 MW of capacity approximately 97% leased and a weighted average lease expiration of 10.3 years, counts "five of the largest global hyperscalers among our customers", and on 2026-08-05 reported data center leasing of 110 megawatts year to date and second-quarter revenue of $2.0 billion, up 18.5%. But in data centres it competes with operators owning "properties comparable to ours", and in asset lifecycle management with hyperscalers' own programmes. A durable switching-cost franchise in a market expected only to hold steady, funding growth businesses that compete on power, location and price, is a narrow moat.

Rating: narrow

Iron Mountain's physical-records franchise shows a real switching-cost advantage, but the FY2025 Form 10-K also describes a slowly shrinking need for it, and the growth businesses compete in open markets. On the advantage side, an independent record: the Department of Justice complaint published in the Federal Register on 2016-04-11 (https://www.federalregister.gov/documents/2016/04/11/2016-08210/united-states-v-iron-mountain-inc-and-recall-holdings-ltd-proposed-final-judgment-and-competitive) stated that "Iron Mountain is the largest RMS company in the United States" and that "Taken together, permanent withdrawal fees and other withdrawal restrictions make it difficult for a new RMS entrant to win customers away from existing RMS vendors." The 2025 10-K reports more than 740 million cubic feet stored, says "we have consistently experienced strong customer retention levels", and shows the Global RIM segment's Adjusted EBITDA margin at 44.7% in 2025 against 44.6% in 2024. On the limiting side, Item 1A says "Our Records Management and Data Management service revenue growth is being negatively impacted by declining activity rates as stored records and tapes are becoming less active and more archival" and "A significant shift by our customers to storage of data through non-paper or non-tape-based technologies, whether now existing or developed in the future, could adversely affect our businesses." In data centres the 10-K says it competes with "numerous data center developers, owners and operators, many of whom own properties comparable to ours". A strong, regulator-documented lock-in on a physical market the company itself expects only to hold steady, plus growth arms without that lock-in, is a narrow moat rather than a wide one.

Type: switching costs

The advantage is the cost and friction of moving stored records. The 10-K's Item 1A says that "if we are successful in winning record storage customers from competitors, the process of moving their stored records into our facilities is often costly and time consuming", and its notes record payments made "to a customer in order to terminate the customer's storage of records with its current records management vendor" as customer inducements. The DOJ complaint (https://www.federalregister.gov/documents/2016/04/11/2016-08210/united-states-v-iron-mountain-inc-and-recall-holdings-ltd-proposed-final-judgment-and-competitive) describes the mechanism: "Customer contracts also often impose a cap on the number of boxes per month that a customer may permanently remove from a RMS vendor's facility, such that a switch to a new RMS vendor may take several months to complete", and a new vendor "will have to offer to pay the fees to induce the customer to switch". Scale helps, since the 10-K says "the majority of our competitors operate in only one market or region", but the filing's own account of what keeps customers is retention and the cost of leaving, which makes switching costs the primary source.

Leadership: clear leader

The band applies to records management, the Global RIM segment that produced $5,291,481 thousand of 2025's $6,901,737 thousand revenue. Independent evidence: the DOJ complaint published in the Federal Register on 2016-04-11 (https://www.federalregister.gov/documents/2016/04/11/2016-08210/united-states-v-iron-mountain-inc-and-recall-holdings-ltd-proposed-final-judgment-and-competitive) stated "Iron Mountain is the largest RMS company in the United States", with fiscal 2014 worldwide revenues of "approximately $3.1 billion", and called Recall, with 2014 revenues of "approximately $836.1 million", "the second-largest RMS company in the United States"; the FY2025 10-K lists property "acquired in connection with our acquisition of Recall Holdings Limited". The 2025 10-K adds, in the company's own words, that "the majority of our competitors operate in only one market or region". The independent source is from 2016 and covers the United States only. Iron Mountain did go on to acquire Recall, but the proposed final judgment in the same notice required it to divest "Recall RMS assets in all fifteen geographic markets identified in the Complaint", thirteen of them to Access CIG, which the notice called "currently the third-largest RMS provider in the United States", so Recall's business was not absorbed whole. This leadership does not extend to data centres, where the Global Data Center segment's $803,429 thousand of 2025 revenue compares with total revenue of $9,217,000,000 at Equinix (https://www.sec.gov/Archives/edgar/data/1101239/000110123926000032/0001101239-26-000032-index.htm) and $6,112,692,000 at Digital Realty (https://www.sec.gov/Archives/edgar/data/1297996/000110465926015365/0001104659-26-015365-index.htm) in stored fundamentals from their FY2025 10-Ks.

Pricing power: strong

In records, growth comes from price on steady volume. MD&A attributes Global RIM "organic storage rental revenue growth driven by revenue management" (organic storage rental growth of 5.4% in 2025), while Item 1A says volumes "were relatively steady in 2025" and "Our organic revenue growth has been positively impacted by our ability to effectively introduce, expand and monitor revenue management. If we are not able to continue and effectively manage pricing, our results of operations could be adversely affected". The segment's Adjusted EBITDA margin was 44.7% in 2025 against 44.6% in 2024. In data centres MD&A cites "improved pricing" and "a 620 basis point increase in Adjusted EBITDA Margin reflecting recent lease commencements, improved pricing and cost containment", to 51.8% from 45.6%. The limits: Item 1A says that on power costs "we may be limited in our ability to, or may not always choose to, pass these increased costs on to our customers", and the 2016 DOJ complaint (https://www.federalregister.gov/documents/2016/04/11/2016-08210/united-states-v-iron-mountain-inc-and-recall-holdings-ltd-proposed-final-judgment-and-competitive) found that where Iron Mountain and Recall met, they "competed aggressively against one another for customers, resulting in lower prices for RMS". Adjusted EBITDA margin is a non-GAAP measure, and the Q2 2026 release (https://s204.q4cdn.com/148941814/files/doc_financials/2026/q2/FINAL-Q2-2026-Earnings-Press-Release.pdf) shows it at 35.8% for the company against 36.7% a year earlier.

Curated moat judgment grounded in the cited source. source: s204.q4cdn.com

Compare with…

Value-chain position

Layer: datacenters, power & cooling

• Upstream (suppliers): —
• Downstream (customers): —
• Competitors: Digital Realty Trust, Equinix

In the AI build-out Iron Mountain is a landlord and a recycler. It leases data center capacity to hyperscale customers, with "five of the largest global hyperscalers among our customers", and its ALM business "provides hyperscale and corporate IT infrastructure managers with services and solutions that enable the decommissioning, data erasure, processing and disposition, and recycling or sale of IT hardware and component assets". Upstream, Item 1A says "We rely on third parties to provide power to our data centers" and that construction depends on "one or more design firms, general contractors, and associated subcontractors".

Derived from this company's mapped supply-chain edges and its industry layer.

Signal contribution editorial prior

The moat prior voted +0.24 on the long (~6-month) horizon at weight 0.20 — the swarm call there is neutral (score 0.01, conviction 0).

Editorial prior — subjective, not backtested. It is bounded (±0.6), low-confidence, and never votes on short/medium. See exactly how it voted →

Product lineup

Products & services with an editorial market-share band and technical barrier band — qualitative judgments tied to a cited basis, never invented figures.

What you're looking at

These charts plot Iron Mountain's reported income statement, cash flow, and balance sheet from its SEC filings through 2026-08-05. Every figure is as-filed XBRL — none of it is an estimate.

Over the reported window, net income at $152.3M in FY2025.

Our model leans Low-confidence · Neutral on the stock over the medium horizon — a market-direction call, not an earnings forecast. See the Signal tab.

Filings

• 2025Q2 · filed 2026-08-05 source: sec.gov
• 2026Q2 · filed 2026-08-05 source: sec.gov
• 2025Q3 · filed 2026-08-05 source: sec.gov
• 2025Q4 · filed 2026-08-05 source: sec.gov
• 2025Q4 · filed 2026-04-30 source: sec.gov

Key ratios vs peers

Comparing against peers…

Institutional holders (13F, 2026Q2)

TradingPilot-computed columns (% of 13F, % shares out) are derived from as-filed 13F values; only name, shares and value are as-filed.