Keiyo Gas Co., Ltd. engages in the production, supply, and sale of city gas. Its operations are carried out through the following segments: Gas, Real Estate, and Others. The Gas segment deals with the production, supply, and sale of city gas. The Real Estate segment involves real estate leasing. The Others segment includes gas fitting works and gas equipment sales. The company was founded on January 8, 1927 and is headquartered in Ichikawa, Japan.