Iron Mountain (IRM) - Market capitalization

Market cap: €25.39 Billion

As of March 2026 Iron Mountain has a market cap of €25.39 Billion. This makes Iron Mountain the world's 783th 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 2026

End of year Market Cap

Year	Marketcap	Change
2026	€25.39 B	23.1%
2025	€20.63 B	-30.14%
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 Mar 26th, 2026 the market cap of Iron Mountain was reported to be:

€25.90 Billion

by Nasdaq

€25.74 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Automatic Data Processing ADP	€70.69 B	178.35%	🇺🇸 USA
Cintas CTAS	€57.57 B	126.69%	🇺🇸 USA
Equifax EFX	€18.26 B	-28.07%	🇺🇸 USA
Fiserv FISV	€25.17 B	-0.86%	🇺🇸 USA
Moody's MCO	€65.67 B	158.61%	🇺🇸 USA
Tradeweb TW	€22.11 B	-12.91%	🇺🇸 USA
Pitney Bowes PBI	€1.51 B	-94.02%	🇺🇸 USA
Dun & Bradstreet DNB	€3.54 B	-86.04%	🇺🇸 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: €25.39 Billion