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IRON MOUNTAIN INC
IRM - Company ID 0001020569
Market cap$31.64 B
Rank#443
Filings2,723
Market capitalization of IRON MOUNTAIN INC
As of 2026-11-06, IRON MOUNTAIN INC (IRM) has a market capitalization of $31.64 B, making it the #443 most valuable US-listed company.
Recent market cap readings
| Date | Market cap |
|---|---|
| 2026-11-06 | $31.64 B |
| 2026-11-05 | $31.41 B |
| 2026-11-04 | $34.95 B |
| 2026-11-03 | $34.74 B |
| 2026-11-02 | $34.29 B |
| 2026-11-01 | $34.68 B |
| 2026-10-31 | $34.68 B |
| 2026-10-30 | $34.33 B |
| 2026-10-29 | $35.05 B |
| 2026-10-28 | $34.23 B |
| 2026-10-27 | $34.32 B |
| 2026-10-26 | $33.64 B |
Market Cap of similar companies
Frequently asked questions
What is IRON MOUNTAIN INC's market cap?
As of 2026-11-06, IRON MOUNTAIN INC (IRM) has a market capitalization of $31.64 B, making it the #443 most valuable US-listed company.
Where does IRON MOUNTAIN INC rank by market cap?
IRON MOUNTAIN INC is the #443 largest US-listed company by market capitalization.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.