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Iron Mountain Cited as a Strong Performer in Independent Research Firm's Evaluation on Message Archiving Hosted Services

Company Receives High Scores for Supervision, Vision and Product Strategy

February 1, 2006

Boston, MA -Iron Mountain Incorporated (NYSE:IRM), the global leader in information protection and storage services, today announced it was named a “Strong Performer” in the January 31, 2006 Forrester Wave™ report: “Message Archiving Hosted Services, Q1 2006.” Iron Mountain was among a select group of companies Forrester Research invited to participate. Iron Mountain was evaluated and ranked among the best, on the basis of a comprehensive methodology relating to current offerings, strategy, and market presence.

Iron Mountain was recognized as a Strong Performer due to its high scores in supervision, vision and product strategy. Companies use message archiving hosted services, such as Iron Mountain's Digital Archives, to comply with government regulations and corporate communications policies as well as to effectively handle legal discoveries.

The report provided the following summary of the key competitive strengths of Iron Mountain's Digital Archives service: “Its Digital Archives is well suited for financial services companies that use Exchange, need to comply with SEC and NASD regulations for archiving and supervision, and want to outsource message archiving to a leading hosted service provider. It is especially well suited to firms that view message archiving as part of a broader records management (RM) strategy.”

“Forrester Research offers an educated and unbiased analysis of the Message Archiving Hosted Services market segment,” said John Clancy, executive vice president of Iron Mountain Digital, the Company’s technology business unit that specializes in data backup/recovery and archiving software as a service (SaaS). “The fact that Iron Mountain scored so well speaks to our company’s drive to meet the needs of our customers, and to our mission to be a leader in providing solutions for better managing and protecting electronic data and records.”

The report, Iron Mountain Is A Strong Performer In The Message Archiving Hosted Services Market, Forrester Research, Inc., January 2006, elaborated further on Iron Mountain's strengths: “Digital Archives has robust supervision features with tools for reviewers, and indicators and mechanisms for monitoring reviewer effectiveness. Random sampling is very strong, and the system can flag messages as potential issues based on a lexicon match.” The Vendor Summary also noted, “Its Digital Archives offering provides support not only for messages and attachments but also for faxes, file systems, and databases. Customers can provide Iron Mountain with email backup tapes and paper files to convert into electronic documents and import into the archive.” In addition, “Iron Mountain earns a solid score for support of various types of content.” For example, Digital Archives can index and search over 200 different attachment types.

For the full Forrester Wave™ report: “Message Archiving Hosted Services, Q1 2006,” please visit: www.forrester.com.

About Iron Mountain
Iron Mountain Incorporated (NYSE:IRM) helps organizations around the world reduce the costs and risks associated with information protection and storage. The Company offers comprehensive records management and data protection solutions, along with the expertise and experience to address complex information challenges such as rising storage costs, litigation, regulatory compliance and disaster recovery. Founded in 1951, Iron Mountain is a trusted partner to more than 90,000 corporate clients throughout North America, Europe, Latin America and the Pacific Rim. For more information, visit the Company's Web site at www.ironmountain.com.

About Iron Mountain Digital
Iron Mountain Digital is the world's leading provider of data backup/recovery and archiving software as a service (SaaS). The technology arm of Iron Mountain Incorporated offers a comprehensive suite of data protection and e-records management software and services to thousands of companies around the world, directly and through a world-wide network of channel partners. Iron Mountain Digital is based in Framingham, Mass. with European headquarters in Frankfurt, Germany. For more information, visit www.ironmountain.com/digital.

About Forrester Research and Forrester Wave™
Forrester Research (NASDAQ: FORR) is an independent technology and market research company that provides pragmatic and forward-thinking advice about technology's impact on business and consumers. The Forrester Wave™ is copyrighted by Forrester Research Inc. Forrester and Forrester Wave™ are trademarks of Forrester Research Inc. The Forrester Wave™ is a graphical representation of Forrester's call on a market and is plotted using a detailed spreadsheet with exposed scores, weightings and comments. Forrester does not endorse any vendor, product or service depicted in the Forrester Wave™. Information is based on best available resources. Opinions reflect judgment at the time and are subject to change.