BOSTON , MASSACHUSETTS

75 The backbone of the US colocation industry , Iron Mountain ’ s network of 15 locations is primarily focused on the inland United States , but also has three facilities in Western Europe and one in Singapore . Founded in 1951 , Iron Mountain puts great emphasis on its superior security features , which are used by more than 90 % of the Fortune 1000 , and several US government agencies . For particularly security and safety-conscious clients , Iron Mountain offers colocation facilities more than 200 feet underground , which has the added benefit of increased cooling efficiency . Iron Mountain ’ s colocation services are targeted at enterprises looking for a hybrid approach to cloud computing . datacentremagazine . com