Kyowanissei Co.,Ltd. engages in the construction and civil engineering business in Japan. The company operates in four segments: Building Equipment Business, Gas Equipment Business, Gas Pipe Business, and Electrical Construction and Civil Engineering Business. Its businesses cover gas equipment construction; heating, hot water supply, and air conditioning equipment construction; solar cells, fuel cells, and storage battery systems construction; gas pipeline laying work; road paving work related to gas pipeline work; and maintenance services in the areas of commercial air conditioners, gas pipeline repair work, and gas leakage. The company is also involved in water supply/hot water supply, drainage, air-conditioning ventilation equipment, gas hot water systems, sprinkler and inert gas fire extinguishing equipment, and factory plant construction; air conditioning installation work; and water supply, hot water supply, drainage, aeration, and other maintenance of various facilities maintenance. In addition, it undertakes electric construction, installation, and maintenance works comprising general civil engineering works, such as water supply construction and road paving repair works; and irrigation works. Further, the company is involved in the floor heating work, gas equipment installation work, propane gas work, and exterior work; inspection of pipes; vehicle leasing; and non-life insurance agency businesses. Kyowanissei Co.,Ltd. was founded in 1887 and is headquartered in Tokyo, Japan.