Iron Mountain Incorporated Reports Fourth Quarter 2004 Financial Results

March 2, 2005

Boston, MA -

   -    Total Revenues are $479 Million, Up 17%
   -    Operating Income is $87 Million
   -    OIBDA is $131 Million; 27.3% of Revenues
   -    Net Income is $0.23 per Diluted Share

Contact:

Stephen Golden
Investor Relations
Iron Mountain
Phone: 617-535-4799
sgolden@ironmountain.com