Latest headcount
11,700
YoY change
+4.9%
Headcount CAGR
+7.2%
Revenue / employee
$589.9K
Employee count history for Iron Mountain
| Fiscal year | Employees |
|---|---|
| 1996 | 1,553 |
| 1997 | 2,295 |
| 2000 | 10,000 |
| 2001 | 8,700 |
| 2002 | 11,500 |
| 2003 | 13,000 |
| 2004 | 9,500 |
| 2005 | 15,800 |
| 2006 | 18,600 |
| 2007 | 20,000 |
| 2008 | 21,000 |
| 2009 | 20,000 |
| 2010 | 19,000 |
| 2011 | 17,000 |
| 2012 | 17,500 |
| 2013 | 19,500 |
| 2014 | 20,000 |
| 2015 | 20,000 |
| 2016 | 24,000 |
| 2017 | 24,000 |
| 2018 | 26,000 |
| 2019 | 25,000 |
| 2020 | 24,000 |
| 2021 | 25,000 |
| 2022 | 26,000 |
| 2023 | 27,000 |
| 2024 | 11,150 |
| 2025 | 11,700 |
Revenue per employee for Iron Mountain
Annual revenue divided by reported headcount, normalized to US dollars.
| Fiscal year | Revenue per employee (USD) |
|---|---|
| 1996 | $83.5K |
| 1997 | $80K |
| 2000 | $98.6K |
| 2001 | $134.6K |
| 2002 | $114.7K |
| 2003 | $115.5K |
| 2004 | $191.3K |
| 2005 | $131.5K |
| 2006 | $126.4K |
| 2007 | $136.5K |
| 2008 | $145.5K |
| 2009 | $150.7K |
| 2010 | $153.5K |
| 2011 | $177.3K |
| 2012 | $171.7K |
| 2013 | $155.2K |
| 2014 | $155.9K |
| 2015 | $150.4K |
| 2016 | $146.3K |
| 2017 | $160.2K |
| 2018 | $162.5K |
| 2019 | $170.5K |
| 2020 | $172.8K |
| 2021 | $179.7K |
| 2022 | $196.3K |
| 2023 | $203K |
| 2024 | $551.6K |
| 2025 | $589.9K |
Earnings per employee for Iron Mountain
Annual net income divided by reported headcount, normalized to US dollars; years with a net loss dip below zero.
| Fiscal year | Earnings per employee (USD) |
|---|---|
| 1996 | $327.1 |
| 1997 | -$6.6K |
| 2000 | -$2.8K |
| 2001 | -$5.1K |
| 2002 | $5.1K |
| 2003 | $6.5K |
| 2004 | $9.9K |
| 2005 | $7.4K |
| 2006 | $6.9K |
| 2007 | $7.7K |
| 2008 | $3.9K |
| 2009 | $11K |
| 2010 | -$2.8K |
| 2011 | $23.3K |
| 2012 | $9.8K |
| 2013 | $5K |
| 2014 | $16.3K |
| 2015 | $6.2K |
| 2016 | $4.4K |
| 2017 | $7.7K |
| 2018 | $14K |
| 2019 | $10.7K |
| 2020 | $14.3K |
| 2021 | $18K |
| 2022 | $21.4K |
| 2023 | $6.8K |
| 2024 | $16.2K |
| 2025 | $12.4K |
Employee count history for Iron Mountain (IRM)
Annual figures come from annual reports (10-K, or 20-F/40-F for foreign filers); interim rows reflect headcount disclosed in periodic filings. Year-over-year change compares each filing with the prior year's equivalent. Revenue and earnings per employee are annual figures normalized to US dollars.
- 202511,700+4.9%
- 202411,150-58.7%
- 202327,000+3.8%
- 202226,000+4.0%
- 202125,000+4.2%
- 202024,000-4.0%
- 201925,000-3.8%
- 201826,000+8.3%
- 201724,0000.0%
- 201624,000+20.0%
- 201520,0000.0%
- 201420,000+2.6%
- 201319,500+11.4%
- 201217,500+2.9%
- 201117,000-10.5%
- 201019,000-5.0%
- 200920,000-4.8%
- 200821,000+5.0%
- 200720,000+7.5%
- 200618,600+17.7%
- 200515,800+66.3%
- 20049,500-26.9%
- 200313,000+13.0%
- 200211,500+32.2%
- 20018,700-13.0%
- 200010,000—
- 19997,400+126.8%
- 19983,263—
- 19972,295+47.8%
- 19961,553—
About Iron Mountain's employee count
Iron Mountain (IRM) employed 11,700 people in fiscal year 2025, based on its most recent annual report. That headcount grew by +550 (+4.9%) from 11,150 a year earlier.
Across the 1996–2025 period, the company's reported workforce went from 1,553 to 11,700 employees — a compound annual growth rate (CAGR) of +7.2% per year.
Iron Mountain generated about $589.9K of revenue and $12.4K of net income per employee in its latest annual period. Revenue and earnings per employee gauge how efficiently a company turns headcount into output, and are most telling when tracked over time or compared with peers in the same industry.
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