Iron Mountain (IRM) - Market capitalization

Market cap: €20.43 Billion

As of December 2025 Iron Mountain has a market cap of €20.43 Billion. This makes Iron Mountain the world's 966th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.

Market cap history of Iron Mountain from 1997 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	€20.43 B	-30.81%
2024	€29.53 B	59.77%
2023	€18.48 B	36.82%
2022	€13.51 B	0.98%
2021	€13.37 B	93.71%
2020	€6.90 B	-15.5%
2019	€8.17 B	0.76%
2018	€8.11 B	-8.34%
2017	€8.84 B	8.79%
2016	€8.13 B	55.82%
2015	€5.22 B	-21.72%
2014	€6.66 B	58.54%
2013	€4.20 B	-5.68%
2012	€4.46 B	1.31%
2011	€4.40 B	17.03%
2010	€3.76 B	16.34%
2009	€3.23 B	-9.36%
2008	€3.56 B	-29.33%
2007	€5.04 B	21.33%
2006	€4.16 B	-11.33%
2005	€4.69 B	60.82%
2004	€2.91 B	8.57%
2003	€2.68 B	0.07%
2002	€2.68 B	-3.69%
2001	€2.78 B	27.63%
2000	€2.18 B	72.57%
1999	€1.26 B	144.62%
1998	€0.51 B	55.57%
1997	€0.33 B

End of Day market cap according to different sources

On Dec 24th, 2025 the market cap of Iron Mountain was reported to be:

€20.43 Billion

by Nasdaq

€20.43 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Equifax EFX	€23.05 B	12.85%	🇺🇸 USA
Cintas CTAS	€65.37 B	219.93%	🇺🇸 USA
Automatic Data Processing ADP	€88.72 B	334.22%	🇺🇸 USA
Pitney Bowes PBI	€1.55 B	-92.39%	🇺🇸 USA
Dun & Bradstreet DNB	€3.46 B	-83.04%	🇺🇸 USA
Fiserv FI	€29.11 B	42.51%	🇺🇸 USA
Tradeweb TW	€19.88 B	-2.69%	🇺🇸 USA
Moody's MCO	€78.73 B	285.31%	🇺🇸 USA

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of Iron Mountain (IRM)

Market cap: €20.43 Billion