Iron Mountain Appoints Paul F. Deninger to its Board

September 16, 2010

Deninger, a Vice Chairman of Jefferies, Becomes Iron Mountain's 12th Director

BOSTON, Sep 16, 2010 (BUSINESS WIRE) --

Iron Mountain Incorporated (NYSE: IRM) today announced that Paul F. Deninger, a vice chairman of Jefferies & Company, Inc., the principal operating subsidiary of Jefferies Group, Inc., (NYSE: JEF), has joined the board of the information management services company, becoming its 12th director. Deninger, 52, was elected yesterday at the company's quarterly board meeting.

"Paul is an accomplished executive who has deep knowledge of successful technology businesses," said Richard Reese, executive chairman of the board of directors at Iron Mountain. "This insight is of particular importance to us as we continue to grow as an information management company, helping customers realize greater value from their physical and digital data. We're honored to welcome Paul to our board."

Deninger is currently a vice chairman of Jefferies, a global securities and investment banking firm. He joined the company in 2003 after it acquired Broadview International LLC, a technology-banking firm, where Deninger was the chairman and CEO. He began working at Broadview in 1987 and quickly rose through the ranks to become its CEO less than 10 years later in 1996.

Deninger has sat on the boards for both public and private organizations. He served from 2000-2003 on the board of Netegrity Inc., a security-software company, and he has been a member of the World Economic Forum since 1996. He currently sits on the executive committee of TechNet and co-chairs TechNet New England, a bipartisan network of CEOs and other senior executives campaigning for economic growth in technology and innovation.

He holds a bachelor's degree from Boston College and an MBA from Harvard Business School.

About Iron Mountain

Iron Mountain Incorporated (NYSE: IRM) provides information management services that help organizations lower the costs, risks and inefficiencies of managing their physical and digital data. The company's solutions enable customers to protect and better use their information--regardless of its format, location or lifecycle stage--so they can optimize their business and ensure proper recovery, compliance and discovery. Founded in 1951, Iron Mountain manages billions of information assets, including business records, electronic files, medical data, emails and more for organizations around the world. Visit www.ironmountain.com or follow the company on Twitter @IronMountainInc for more information.

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SOURCE: Iron Mountain Incorporated

Iron Mountain
Stephen Golden, 617-535-4769
Stephen.golden@ironmountain.com
or
Weber Shandwick
Kristen Georgian, 617-520-7042
kgeorgian@webershandwick.com