Greenheck Fan Corporation, 400 Ross Ave, Schofield, WI 54476, US

Founded in 1947, Greenheck Fan Corporation is one of the leading manufacturers of air movement and control equipment in the world. Its range of products includes inline, ceiling and sidewall fans, utility, centrifugal and radial blowers, makeup air units, gravity ventilators, indoor air handlers, dampers, louvers, coils and laboratory exhaust systems. The company offers products for hospitals, office buildings, hotels, shopping malls, restaurants, schools, industrial plants and other commercial buildings. Greenheck Fan Corporation also represents various affiliated brands, such as Accurex, Airolite, Innovent and Valent. It operates manufacturing and assembly facilities in Wisconsin, California, Kentucky, Minnesota, North Carolina and Ohio, as well as China and Mexico. The company additionally provides delivery services through a network of distribution centers.