Tekken Corporation engages in the construction business in Japan and internationally. It operates through four segments: Civil Engineering Works, Architectural Construction, Real Estate Business, and Ancillary Business. The company develops social infrastructure projects, such as roads, tunnels, bridges, water supply and sewage systems, and river revetments; railroad infrastructure, including railroad viaducts, bridges, tunnels, embankments, and station platforms, as well as stations, station buildings, and railyards; and buildings, such as condominiums, schools, medical and welfare facilities. It is also involved in the sale of construction materials and equipment and environment products; real estate, non-life insurance agency, security, machinery rental, office work outsourcing, and staffing businesses; manufacturing, sales, and transportation of materials and machinery for civil engineering architecture work; civil engineering rental and repair of civil architecture machinery; and businesses incidental or related to the foregoing items. In addition, the company provides construction and technical guidance of civil engineering architecture work, planning and consulting services for civil engineering architecture work, and training and education services, as well as support services for architecture works. Further, it engages in planning, development, production, and sales of publications, printed materials, videos, and digital content; provision of civil engineering construction management services; operation of strawberry tourist farm; and supply and sale of electricity by small hydropower generation. Tekken Corporation was incorporated in 1944 and is headquartered in Tokyo, Japan.