Iron Mountain Incorporated Schedules Second Quarter 2008 Earnings Release and Conference Call

Call Date: Thursday, July 31, 2008 Call Time: 11:00 A.M. (Eastern Time) Call Hosts: Stephen Golden, Vice President, Investor Relations Bob Brennan, President & CEO Brian McKeon, EVP & CFO Domestic Call Dial In: 888.263.0282 International Dial In: 706.902.0708 Conference ID: 3846884 Online Info: www.ironmountain.com at the Investor Relations page Live Simulcast (listen only) available during the call. Replay available one hour after the conclusion of the call for one week. Replay Domestic Dial In: 800.642.1687 Replay International Dial In: 706.645.9291 Conference ID: 3846884

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 100,000 corporate clients throughout North America, Europe, Latin America and Asia Pacific. For more information, visit the Company's Web site at www.ironmountain.com.

SOURCE: Iron Mountain Incorporated

Iron Mountain Incorporated Stephen P. Golden, Vice President, Investor Relations 617-535-4766