CoreSite Realty Corporation is a real estate investment trust (REIT). The Company, through its controlling interest in CoreSite, L.P. (Operating Partnership), is engaged in the business of ownership, acquisition, construction and operation of data centers. Its data centers are located across the United States, including the San Francisco Bay area, Los Angeles, the Northern Virginia area (including Washington D.C.), the New York area, Boston, Chicago, Denver and Miami. Its property portfolio includes approximately 25 operating data center facilities, office and light-industrial space and multiple development projects and space, which comprise of approximately 4.6 million net rentable square feet (NRSF). The Company provides data center, cloud access and interconnection solutions to enterprises, network operators, cloud providers, and supporting service providers.