PRESS RELEASES

FORTUNE Names Iron Mountain as one of America’s Most Admired Companies for Diversified Outsourcing for Second Year in a Row

March 6, 2006

Boston, MA - Iron Mountain Incorporated (NYSE: IRM), the global leader in information protection and storage services, has been selected by FORTUNE magazine as one of America’s Most Admired Companies for the Diversified Outsourcing Industry for the second consecutive year.In the magazine’s March 6th issue, Iron Mountain is ranked 3rd in Diversified Outsourcing Industry, moving up four spots from last year.

No stranger to industry accolades, Iron Mountain’s reputation as a leader has been reinforced by multiple recognitions over the years.Most recently, Iron Mountain moved up to No. 811 of last year’s FORTUNE 1000 list and was listed on the Boston Globe’s “The Globe 100” list of the best Massachusetts companies.The company has also been distinguished on the InformationWeek 500 for innovative technology practices and named among Computerworld’s “Top 100 Best Places to Work in IT.”

“We are honored to have been recognized once again by FORTUNE as one of America’s Most Admired Companies for diversified outsourcing,” said Iron Mountain Chairman and CEO Richard Reese.“Our employees take great pride in delivering unmatched customer service and solutions that consistently meet our clients’ evolving needs.This continued recognition from FORTUNE is a tribute to Iron Mountain employees and to the Iron Mountain brand.”

As the global leader in information protection and storage services, with 50-plus years of experience, Iron Mountain has earned the solid reputation with customers as the most qualified solution provider for protecting valuable company information.With the expansive growth of electronic information in the workplace, the Company has continued to evolve to meet information management needs.With the launch of its digital services offerings, Iron Mountain became the only service provider of its kind to bridge the paper and digital worlds.

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.