[Industry] Service industry [Headquarters] 1-5-1 Yurakucho, Chiyoda-ku Hibiya Marine Bldg. 6F [Phone Number] 03-3595-1411 [CEO Name] Keiji Oishi [Listed] Unlisted [Capital] 98 million yen [Established] 1970.04 [URL] https://hamatomo.co.jp/