Iron Mountain (IRM) - Market capitalization

Market cap: HK$195.61 Billion

As of December 2025 Iron Mountain has a market cap of HK$195.61 Billion. This makes Iron Mountain the world's 912th 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	HK$195.61 B	-18.01%
2024	HK$238.58 B	49.5%
2023	HK$159.58 B	40.94%
2022	HK$113.23 B	-4.16%
2021	HK$118.14 B	79.4%
2020	HK$65.85 B	-7.65%
2019	HK$71.30 B	-1.87%
2018	HK$72.66 B	-12.41%
2017	HK$82.96 B	25.03%
2016	HK$66.35 B	49.98%
2015	HK$44.24 B	-29.68%
2014	HK$62.91 B	39.66%
2013	HK$45.05 B	-1.48%
2012	HK$45.72 B	2.99%
2011	HK$44.40 B	14.03%
2010	HK$38.93 B	8.4%
2009	HK$35.92 B	-6.8%
2008	HK$38.53 B	-32.94%
2007	HK$57.47 B	34.59%
2006	HK$42.70 B	-0.93%
2005	HK$43.09 B	40.12%
2004	HK$30.75 B	17.28%
2003	HK$26.22 B	19.79%
2002	HK$21.89 B	14.02%
2001	HK$19.20 B	19.62%
2000	HK$16.05 B	62.19%
1999	HK$9.89 B	108%
1998	HK$4.75 B	55.53%
1997	HK$3.05 B

End of Day market cap according to different sources

On Dec 4th, 2025 the market cap of Iron Mountain was reported to be:

HK$195.52 Billion

by Nasdaq

HK$195.61 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Equifax EFX	HK$202.58 B	3.56%	🇺🇸 USA
Cintas CTAS	HK$577.15 B	195.04%	🇺🇸 USA
Automatic Data Processing ADP	HK$817.84 B	318.08%	🇺🇸 USA
Pitney Bowes PBI	HK$13.16 B	-93.27%	🇺🇸 USA
Dun & Bradstreet DNB	HK$31.77 B	-83.76%	🇺🇸 USA
Fiserv FI	HK$267.07 B	36.53%	🇺🇸 USA
Tradeweb TW	HK$183.49 B	-6.20%	🇺🇸 USA
Moody's MCO	HK$683.29 B	249.30%	🇺🇸 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: HK$195.61 Billion