Keio Corporation (京王電鉄株式会社, Keiō Dentetsu Kabushiki-gaisha) (TYO: 9008) is a private railway operator in Tokyo, Japan, and the central firm of the Keio Group (京王グループ, Keiō Gurūpu) that is involved in transport, retail, real estate and other industries. The name "Keio" (京王) is derived from taking one character each from the places through which the railway runs: "Tōkyō" (東京) and "Hachiōji" (八王子). The Keio railway network connects the western suburbs of Tokyo (Chōfu, Fuchū, Hachiōji, Hino, Inagi, Tama) and Sagamihara in Kanagawa with central Tokyo at Shinjuku Station.