Takadakiko Co., Ltd. engages in the design, manufacture, and construction of bridges, steel frames, and other steel structures. It operates through the following segments: Bridge Business and Steel Structure Business. The Bridge Business segment includes new steel bridges, bridge-related steel structures, composite structures, public works, and marine-related steel structures. The Steel Structure Business segment covers skyscraper steel frames, large space structures, and damping materials. The company was founded by Sanjiro Takata on June 1, 1921 and is headquartered in Osaka, Japan.