Iron Mountain Incorporated Declares Quarterly Dividend

  Iron Mountain Incorporated Declares Quarterly Dividend

Business Wire

BOSTON -- December 14, 2012

The Board of Directors of Iron Mountain Incorporated (NYSE: IRM) declared a
quarterly cash dividend of $0.27 per share on the common stock of the company,
payable on January 17, 2013 to shareholders of record at the close of business
on December 26, 2012.

About Iron Mountain

Iron Mountain Incorporated (NYSE: IRM) is a leading provider of information
storage and management solutions. The Company’s real estate network of 64
million square feet across nearly 1,000 facilities in 32 countries allows it
to serve customers around the world. And its solutions for records management,
data backup and recovery, document management, and secure shredding help
organizations to lower storage costs, comply with regulations, recover from
disaster, and better use their information for business advantage. Founded in
1951, Iron Mountain stores and protects billions of information assets,
including business documents, backup tapes, electronic files and medical data.
Visitwww.ironmountain.com for more information (the content of which is not a
part of this press release).

Contact:

Iron Mountain
Stephen P. Golden, 617-535-4766
Vice President, Investor Relations
sgolden@ironmountain.com