Tokyo Gas Co., Ltd. engages in the provision of city gas and other gas-related products. It operates through the following segments: City Gas, Electric Power, Overseas Business, Energy-related, Real Estate, and Others. The City Gas segment produces, supplies, and sells gas. The Electric Power segment handles electric power services. The Overseas Business segment manages overseas resource development. The Energy-related segment includes engineering solutions, liquefied natural gas (LNG) sale, and gas construction. The Real Estate segment leases and manages land and buildings. The Others includes information processing service, ship, and credit businesses. The company was founded on October 1, 1885 and is headquartered in Tokyo, Japan.