Total Assets for Iron Mountain (IRM)
According to Iron Mountain's latest reported financial statements, the company's latest reported total assets is $21.13B USD. Total assets sum everything the company reports owning at the end of each reporting period — cash, receivables, inventory, property, plant, equipment, intangibles, and other holdings — as filed on the balance sheet. Compare with total liabilities and net assets for the capital-structure picture.
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
Currently viewingTotal AssetsSwitch metric
Latest period
$21.13B
YoY change
+12.9%
5Y CAGR
+8.3%
Peak year (2025)
$21.13B
Latest annual
$21.13B
Total Assets history chart for Iron Mountain (IRM) from 1996 to 2025
Total Assets history table for Iron Mountain (IRM) from 1996 to 2025
| Fiscal year | Period ended | Reported | Total Assets | YoY |
|---|---|---|---|---|
| 2025 | $21.13B | +12.9% | ||
| 2024 | $18.72B | +7.1% | ||
| 2023 | $17.47B | +8.3% | ||
| 2022 | $16.14B | +11.7% | ||
| 2021 | $14.45B | +2.1% | ||
| 2020 | $14.15B | +2.4% | ||
| 2019 | $13.82B | +16.6% | ||
| 2018 | $11.85B | +8.0% | ||
| 2017 | $10.97B | +15.7% | ||
| 2016 | $9.49B | +49.4% | ||
| 2015 | $6.35B | -3.3% | ||
| 2014 | $6.57B | -1.2% | ||
| 2013 | $6.65B | +4.6% | ||
| 2012 | $6.36B | +5.2% | ||
| 2011 | $6.04B | -5.5% | ||
| 2010 | $6.40B | -6.6% | ||
| 2009 | $6.85B | +7.7% | ||
| 2008 | $6.36B | +0.8% | ||
| 2007 | $6.31B | +21.1% | ||
| 2006 | $5.21B | +9.3% | ||
| 2005 | $4.77B | +7.3% | ||
| 2004 | $4.44B | +14.1% | ||
| 2003 | $3.89B | +20.5% | ||
| 2002 | $3.23B | +13.0% | ||
| 2001 | $2.86B | +7.6% | ||
| 2000 | $2.66B | +101.9% | ||
| 1999 | $1.32B | +97.6% | ||
| 1998 | $666.50M | +68.9% | ||
| 1997 | $394.70M | +68.1% | ||
| 1996 | $234.82M | — |
Total Assets values are taken from Iron Mountain's reported balance sheets (10-Q quarterly and 10-K annual filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the date the filing was reported; YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
Analysis
2025's annual total assets for Iron Mountain (IRM) came in at $21.13B – grew 12.9% year-over-year.
Through 2020–2025 (5 years), Iron Mountain total assets delivered a +8.3% annualised rate; sustaining 10 straight years of year-over-year growth.
$21.13B stands as the all-time-high annual total assets, posted in 2025, against a low of $234.82M during 1996.
Iron Mountain (IRM) sits 8th of 8 Real Estate peers we track on this metric, against a peer median of $56.30B.
Iron Mountain Total Assets by Year
Iron Mountain Total Assets 2025: $21.13B
Iron Mountain total assets in 2025 was $21.13B, grew 12.9% from 2024. This figure represents the highest annual value in the available history.
Iron Mountain Total Assets 2024: $18.72B
Iron Mountain total assets in 2024 was $18.72B, grew 7.1% from 2023.
Iron Mountain Total Assets 2023: $17.47B
Iron Mountain total assets in 2023 was $17.47B, grew 8.3% from 2022.
Iron Mountain Total Assets 2022: $16.14B
Iron Mountain total assets in 2022 was $16.14B, grew 11.7% from 2021.
Iron Mountain Total Assets 2021: $14.45B
Iron Mountain total assets in 2021 was $14.45B.
See more financial history for Iron Mountain (IRM).
Sector peers — Total Assets
Companies in the same sector as Iron Mountain, ranked by their latest total assets.
| Company | Total Assets | Sector |
|---|---|---|
| Prologis, Inc. (PLD) | $98.72B | Real Estate |
| Realty Income Corporation (O) | $72.80B | Real Estate |
| Welltower Inc. (WELL) | $67.30B | Real Estate |
| American Tower Corporation (AMT) | $63.19B | Real Estate |
| Digital Realty Trust, Inc. (DLR) | $49.41B | Real Estate |
| Simon Property Group, Inc. (SPG) | $40.61B | Real Estate |
| Equinix, Inc. (EQIX) | $40.14B | Real Estate |
| Public Storage (PSA) | $20.21B | Real Estate |
Frequently asked questions
What is Iron Mountain's total assets?
- Latest reported total assets for Iron Mountain (IRM) is $21.13B (period ending December 31, 2025).
How has Iron Mountain total assets changed year-over-year?
- Iron Mountain (IRM) total assets changed +12.9% year-over-year on the latest annual filing.
What is the long-term growth rate of Iron Mountain total assets?
- Iron Mountain (IRM) total assets compound annual growth rate is +8.3% over the most recent 5 years available.
When did Iron Mountain total assets hit its highest annual value?
- Iron Mountain total assets reached its highest annual value of $21.13B in 2025.
What was Iron Mountain total assets in 2024?
- Iron Mountain (IRM) total assets in 2024 was $18.72B.
What was Iron Mountain total assets in 2025?
- Iron Mountain (IRM) total assets in 2025 was $21.13B.
Metrics overview
Pick a metric for charts, filings, and peers — each row shows the latest TTM or annual value with year-over-year change.
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