CoreSite Realty Corporation engages in the ownership, acquisition, construction, and management of data centers. The data centers are specialized and secure buildings that house networking, storage, and communications technology infrastructure, including servers, storage devices, switches, routers, and fiber optic transmission equipment. These buildings provide the power, cooling, and network connectivity to operate this mission-critical equipment. The company's data centers are located in Los Angeles, the San Francisco Bay and northern Virginia areas, Chicago, Boston, New York City, and Miami. CoreSite Realty Corporation serves telecommunications carriers, content and media entertainment providers, cloud providers, enterprise customers, financial and educational institutions, and government agencies. As of December 31, 2011, its property portfolio included 12 operating data center facilities and 1 development site. The company is qualified as a real estate investment trust (REIT) under the Internal Revenue Code. As a REIT, it would not be subject to federal income taxes, if it distributes at least 90% of its REIT taxable income to its stockholders. The company was founded in 2010 and is headquartered in Denver, Colorado.