Tekken Corporation engages in the construction business in Japan and internationally. It constructs infrastructure projects, including roads, tunnels, bridges, water supply and sewerage facilities, revetments, etc.; railway projects, such as grade-separated intersections, tunnels, bridges, embankments, railway station buildings, train depots, etc.; and commercial buildings, schools, and medical and welfare facilities. The company was founded in 1944 and is headquartered in Tokyo, Japan.