TOA Corp. (1885) engages in the contracting, planning, designing, execution and supervision of civil engineering and architectural works; including consulting services. It operates through the following business segments: Domestic Construction, Overseas Business, and Others. The Domestic Construction segment engages in the planning, designing, supervision and contract works for regional, urban and ocean development. The Overseas segment provides general overseas contracts. The Others segment provides dredging, reclamation and land preparation; surveying and geological investigation; constructing power generation facilities and rendering related consulting services. It also engages in the planning, construction, equipment and property leasing, maintenance of roads, railroads, ports and harbors, airports, water works and sewer systems, government offices, waste disposal and treatment facilities, other public facilities, etc. The company was founded by Soichiro Asano in 1908 and is headquartered in Tokyo, Japan.