Nihon Dengi Co., Ltd. engages in the design and construction of automatic control systems in Japan. The company operates through two segments, Air Conditioning and Instrumentation Related Business; and Industrial System Related Business. The Air Conditioning and Instrumentation Related Business segment provides air conditioning and instrumentation for non-residential buildings, such as office buildings, factories, hospitals, research institutes, schools, and commercial facilities. It also engages in the expansion or repair of buildings and automatic air conditioning control systems; renovation of buildings; selling equipment for automatic controlling; and thermostats. The Industrial System Related Business segment handles instrumentation and automatic control work for factories and various transport lines, including food factories, installation, maintenance, and production management of various FA machines centered on industrial robots. This segment also sells control equipment, such as regulators, flow meters, and industrial valves. In addition, the company offers design and manufacturing of monitor panels and control panels, as well as sells automatic control equipment. Nihon Dengi Co., Ltd. was incorporated in 1959 and is headquartered in Tokyo, Japan.