ASAHI KOGYOSHA CO., LTD. engages in the design, supervision, and construction of air-conditioning and sanitation systems. It operates through the Installation Work and Equipment segments. The Installation Work segment handles air-conditioning and sanitation equipment installation. The Equipment segment manufactures and sells environment equipment, such as precision environmental control equipment for semiconductors and flat panel displays (FPDs). The company was founded on April 3, 1925 and is headquartered in Tokyo, Japan.