Toyo Construction Co., Ltd. engages in the marine and civil engineering and building construction activities in Japan and internationally. The company operates through Civil engineering, Construction, Overseas construction, Real estate, and Other business segments. It undertakes civil engineering works, such as ports, fishery ports, and reclamation and dredging; airports; railways; power stations; river and dams; waterworks and sewerage services; expressways; waste disposal site works, as well as involved sells and lease of real estate. The company also engages in commercial, factory, accommodation, distributions and warehouses, office, medical and welfare facilities, education and culture, resident, and sports and leisure building construction. In addition, it offers civil engineering, offshore wind, architectural, and environmental technologies; and technical research institute. The company was formerly known as Hanshin Harbor Construction Co., Ltd. and changed its name to Toyo Construction Co., Ltd. in 1964. Toyo Construction Co., Ltd. was incorporated in 1929 and is headquartered in Tokyo, Japan. As of September 24, 2025, Toyo Construction Co., Ltd. operates as a subsidiary of Taisei Corporation.
