Extra Space Storage Inc. is an American real estate investment trust headquartered in Salt Lake City, Utah that invests in self storage facilities. The company rents storage units, including climate controlled units, drive-up units, lockers, boat storage, RV storage and business storage under the brands Extra Space Storage, Life Storage, and Storage Express. As of April 29, 2025 the company owned and/or operated 3,714 locations in 43 states, and Washington, D.C. comprising approximately 2.6 million units 283.4 million square feet of net rentable space. It is the largest owner of self storage units in the United States and the largest self storage property manager.