Iron Mountain? It's more like paper mountain at Iron Mountain, one of the world's largest records storage and information management companies. The firm stores paper and other media, including microfilm and microfiche, audio and video files, film, and X-rays. It also provides such services as records filing, database management, fulfillment (through Iron Mountain Fulfillment Services), disaster recovery, and information destruction. The company serves about 170,000 corporate clients in North America, Europe, Latin America, and Asia/Pacific. Iron Mountain traces its paper trail back to 1951, when it was established in an underground facility near Hudson, New York. The company has been a REIT since 2014.