With a market capitalization (market cap) of $37.69B — a measure of how much the company is worth — Iron Mountain Incorporated is the 403rd most valuable company in Real Estate as of August 18, 2026. Shares trade at $126.67, down +2.49% on the day.
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Established in 1951, Iron Mountain Incorporated (NYSE: IRM) has become the world's foremost authority in storage and information management solutions. More than 225,000 organizations globally trust Iron Mountain with their critical assets. With an extensive physical infrastructure spanning over 90 million square feet, the company operates approximately 1,450 facilities in around 50 countries. Within this vast network, Iron Mountain safeguards billions of valued items, including vital corporate records, highly confidential digital assets, and invaluable cultural and historical artifacts. Their comprehensive suite of offerings encompasses secure document archiving, robust information governance, digital transformation initiatives, confidential destruction services, along with advanced data centers, cloud computing solutions, and specialized art storage and logistics. These services empower clients to mitigate costs and risks, ensure regulatory compliance, facilitate swift disaster recovery, and enable a more efficient, digital-first operational model.
Visit websiteAs of August 18, 2026, Iron Mountain Incorporated (IRM) is worth $37.69B — this is its market capitalization, the total value of all its outstanding shares.
Iron Mountain Incorporated’s market cap is $37.69B, which ranks it #403 among the most valuable companies in the Real Estate sector tracked on MarketCapLens.
Iron Mountain Incorporated (IRM) shares trade at $126.67, down 2.49% on the day, as of August 18, 2026.
Fundamentals are annual. Figures labeled with their fiscal year.
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Iron Mountain Incorporated trades at a price-to-earnings (P/E) ratio of 258.5, based on its latest share price and annual earnings per share.