EX-12 2 a2198510zex-12.htm EXHIBIT 12
QuickLinks -- Click here to rapidly navigate through this document


Exhibit 12

IRON MOUNTAIN INCORPORATED
STATEMENT OF THE CALCULATION OF RATIO OF EARNINGS TO FIXED CHARGES
(Dollars in thousands)

 
   Year Ended December 31,    
  
 
   Three Months
Ended
March 31, 2010 		 
 
   2005   2006   2007   2008   2009  

Earnings:

                                      
 

Income before Provision for Income Taxes

   $ 197,018   $ 224,218   $ 223,024   $ 224,867   $ 332,833   $ 67,310  
 

Add: Fixed Charges

     245,431     264,211     308,871     330,088     311,474     77,161  
                           

  $ 442,449   $ 488,429   $ 531,895   $ 554,955   $ 644,307   $ 144,471  
                           

Fixed Charges:

                                      
 

Interest Expense, Net

   $ 183,584   $ 194,958   $ 228,593   $ 236,635   $ 227,790   $ 56,562  
 

Interest Portion of Rent Expense

     61,847     69,253     80,278     93,453     83,684     20,599  
                           

  $ 245,431   $ 264,211   $ 308,871   $ 330,088   $ 311,474   $ 77,161  
                           

Ratio of Earnings to Fixed Charges

     1.8 x   1.8 x   1.7 x   1.7 x   2.1 x   1.9 x



QuickLinks