Gecoss Corporation, headquartered in Tokyo, Japan, specializes in the rental and sale of both construction machinery and various steel products. The company provides a wide array of temporary steel construction materials, including H-beams, steel sheet piling, floor plates, lining panels, and ground retention systems. Beyond simply supplying these components, Gecoss also offers services encompassing the design, manufacturing, and sale of elements for, as well as the execution of, mountain retaining and gantry erection and demolition, pile driving and extraction, and obstacle removal. Their offerings extend to temporary infrastructure projects, where they rent, sell, and construct temporary bridges, station platforms, stairs, shielding supports, road bridges, and bridge anti-collapse systems. Gecoss also maintains a comprehensive rental fleet featuring both general-purpose vehicles and a diverse range of heavy construction equipment, such as elevated work platforms, excavators, generators, portable site accommodations, and lighting solutions. Additionally, Gecoss undertakes specialized design and construction activities for projects like pile boring, mountain retaining installation and removal, and soil-cement mixing wall construction. They further provide expert planning, design, and technical support services specifically tailored for temporary works projects. Established in 1946, Gecoss Corporation operates as a subsidiary of JFE Steel Corporation.