As of June 2026 Iron Mountain has a market cap of โน3.521 Trillion. This makes Iron Mountain the world's 683th 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.
On Jun 6th, 2026 the market cap of Iron Mountain was reported to be: