| 1951 |
Iron Mountain Atomic Storage Corporation is established by Herman Knaust |
| 1975 |
Iron Mountain, the present company, purchases the underground mine and the nearby, larger underground site from Knaust |
| 1978 |
Iron Mountain purchases nearby above ground record center and begins developing high density storage systems |
| 1980 |
Company expands to New England with the purchase of a third underground facility |
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Becomes a founding member of Professional Records and Information Services Management (PRISM), formerly ACRC |
| 1981 |
C. Richard Reese joins the Company as president and CEO |
| 1983 |
Iron Mountain expands to New Hampshire and New Jersey |
| 1986 |
Company establishes Corporate Headquarters in Boston and purchases New England Storage Warehouse |
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Becomes dominant records management company in the Northeast |
| 1988 |
Iron Mountain becomes a national company with the acquisition of Bell & Howell Records Management Company |
| 1991 |
Introduces customers to SafeKeeper, Iron Mountain's proprietary records inventory management system |
| 1994 |
Company introduces its Records Management Consulting Services |
| 1995 |
Richard Reese named chairman of the board |
| 1996 |
Initial public offering of common stock, trading on the NASDAQ, under the symbol IMTN |
| 1997 |
Iron Mountain becomes the leading software escrow company in the world with the acquisition of Data Securities International, Inc. (DSI) |
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Enters the Health Information Management services market with the acquisition of Record Masters (HIMSCorp.) |
| 1998 |
IronMountain becomes the leading off-site data protection company in the U.S. with the acquisition of Arcus Data Security, Inc. (renamed Off-Site Data Protection in 2001) |
| 1999 |
Company establishes its first international presence through acquisition of British Data Management (BDM) in UK |
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Enters the Mexican market with the acquisition of SAC Mexico |
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Moves to the New York Stock Exchange, under the symbol IRM |
| 2000 |
Iron Mountain enters Latin America through acquisition of Storage, S.A. in Argentina |
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Merges with Pierce Leahy Archives, the second largest records management company, making Iron Mountain the only company providing a full line of records and information management services throughout the Western Hemisphere and in Europe |
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Establishes Iron Mountain Confidential Destruction division (renamed Secure Shredding in 2002) |
| 2001 |
Company launches two key technology solutions for information protection and storage: Electronic Vaulting services for online backup and recovery, and Digital Archives for electronic records management |
| 2002 |
Iron Mountain named "Company of the Year" by The Boston Business Journal |
| 2003 |
Iron Mountain named to Contingency Planning & Management magazine's CPM Hall of Fame |
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Debuts on the Fortune 1000list as #887 |
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CEO Richard Reese named "N.E. Entrepreneur of the Year" by Ernst & Young |
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Significantly increased its presence throughout Europe by acquiring the Information Management Services unit of Hays PLC |
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Named to the Information Week 500 for innovative technology practices |
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Named one of 100 Fastest Growing Companies in MA by the Boston Business Journal |
| 2004 |
Iron Mountain moves up 30 spots to #857 on the Fortune 1000 list |
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Debuts on The Boston Globe's annual company rankings, "The Globe 100" at #27 |
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Expands its Intellectual Property Management services by acquiring domain name management firm Arcemus® |
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Ranks in ComputerWorld's Best Places to Work in Information Technology |
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Expands Secure Shredding services in Canada through the acquisition of Ottawa, Ontario-based franchiser Proshred Security International Inc. and eight of its Canadian franchisees |
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For the second year in a row, named to the InformationWeek 500 for innovative technology practices |
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Forms the Iron Mountain Digital business unit following the acquisition of Connected Corporation, a leader in online backup and distributed data protection |
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Company appoints Bob Brennan as President of North America |
| 2005 |
Iron Mountain moves up 46 spots to #811 on the 2005 Fortune 1000 list |
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Iron Mountain ranks #53 on Boston Globe's 2005 Globe 100 |
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PC Magazineawards Connected DataProtector with Editor's Choice Award for online backup services |
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Makes its first move into the Pacific Rim with the acquisition of the Australian and New Zealand operations of Pickfords Records Management ("PRM") |
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Bob Brennan promoted to President and Chief Operating Officer |
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Acquires LiveVault Corporation, a leading provider of disk-based online server backup and recovery solutions, further extending the Company's technology portfolio |
| 2006 |
IronMountain moves up 28 spots to #783 on the 2005 Fortune 1000 list |
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FORTUNE Names Iron Mountain as one of America's Most Admired Companies for Diversified Outsourcing for Second Year in a Row |
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Iron Mountain Expands Government Services Organization to Better Support the Growing Needs of its Public Sector Clients; Opens new government-focused business unit headquarters in Dulles, VA |
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Acquires DigiGuard, a leading provider of data protection services in Australia and New Zealand |
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LiveVault service won the Best Storage Software Solution category for the 21st Annual CODiE Awards |
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Marc Duale appointed President of Iron Mountain Europe |
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Iron Mountain listed on InformationWeek 500 for fourth consecutive year |
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Boston Leader Summit honors Richard Reese with 2006 Visionary Leadership award |
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Iron Mountain customer, Cooke & Bieler, wins InfoWorld Top 100 award for "Business Continuity and data protection" for its use of Iron Mountain's LiveVault service. |
| 2007 |
Iron Mountain has been chosen to receive the KMWorld 2007 Readers' Choice Award in "Records Management, Regulatory Compliance." |
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Iron Mountain debuts in Forbes magazine's "Top 400 Best Big Companies"; ranked 6th in Business Services and Supplies Industry. |
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Extends records management portfolio with acquisition of Accutrac Software, Inc. |
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Acquires Stratify, Inc., augmenting its suite of eDiscovery services. |
| 2008 |
Iron Mountain moves to #720 on the Fortune 1000 list |
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Bob Brennan is elected president and CEO and Richard Reese becomes executive chairman of the board |
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Security magazine names Iron Mountain to its annual ranking of the nation's most secure companies, the Security 500 |
| 2009 |
Iron Mountain is added to the S&P 500 Index |
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Tops $3 billion in annual revenue for the first time in the company’s history. |