is a bus-operating company in western Tama Area, mainly in Hachioji and Akiruno, Tokyo, Japan. It has in a subsidiary which once took charge of bus routes in western Hachioji area and Ome area, and expressway bus routes. Although it now belongs to Keio Group, it was originally a bus section of Ome Electric Railway Co. (present JR Ōme Line). History Nishi Tokyo Bus is a company established by a merger of Takao Jidōsha Co.(), Okutama Shinkō Co.() and Goō Jidōsha Co.() in 1963. Takao Jidōsha's first route is between Hachiōji Station - Mount Takao foot which started operation in 1916. This is in only three years, after the Keio Denki Kidō (present Keio Corporation) operates around a bus for the first time (temporarily to railroad opening of traffic) in Tokyo in 1913, and in continuous operation, this became the first in the Tokyo-fu. Since This route competed with the route of Hachiōji Shigai Jidōsha (present Keio Dentetsu Bus Hachioji office) which started operation in 1923, Takao Jidōsha established the new route between Hachiōji Station - Kawarajuku, Ongata Village (present Hachioji City) in 1932, extended to Shimo-Ange () by 1924, and it became the prime route of Takao Jidōsha. It entered under the influence of Keio Teito Electric Railway (present Keio Corporation) in 1955. Okutama Shinkō is the company which Ome Electric Railway Co. established in 1928 by setting development of an area along the railroad line as the main purpose. The first bus line in Ome and Okutama area is between Futamatao Station (destination station of Ome Electric Railway of those days) and Hatonosu Station which was started operation by Okutama Jidōsha Co. in 1922. Ome Electric Railway purchased the Okutama Jidōsha in 1930, and it extended to Hikawa (Oku-Tama Station) in August of the same year. Although the railroad section of Ome Electric Railway was nationalized (present JR Ome Line) and the bus section operated by Ome Electric Railway succeedingly in April, 1944, all the bus enterprises of the Ome Electric Railway were transferred to the Okutama Shinkō, its subsidiary in April, 1946. Okutama Shinkō entered under the influence of Keio Teito Electric Railway in 1956. In 1920, Ishikawa Jidōsha was replaced with the stagecoach which operated between Imaguma, Kawaguchi-mura (present Hachioji) - Hachioji (Hiraokachō) until then, and started operation of the bus of track reconstruction between Itsukaichi - Hachioji. It extended to Hachioji station in 1924, and