Keio Corporation is a Japanese company that provides rail transportation services through its subsidiaries. It operates in segments including Transportation, Merchandise Sales, Real Estate, Leisure, and Other Businesses. The company offers passenger transport via railways, buses, and taxis, and also runs retail businesses such as department stores and bookstores, as well as hotels and restaurants. It manages, leases, and sells real estate, and provides travel services, building maintenance, construction, civil engineering, parking management, and various other services. Formerly known as Keio Electric Railway Co. Ltd., it changed its name to Keio Corporation in June 2005. Founded in 1910, it is headquartered in Tokyo, Japan.