Started in 1947 as a small sheet metal shop, Greenheck Fan Corporation is one of the leading manufacturers of air movement and control equipment worldwide. It serves hospitals, office buildings, hotels, shopping malls, restaurants, schools, industrial plants and other commercial buildings. The company provides dampers, kitchen ventilation and laboratory exhaust systems, centrifugal and vane axial fans and makeup air units. It also offers energy recovery ventilators, indoor air handling units, architectural louvers and sunshades, heating and cooling coils and related accessories. Greenheck Fan Corporation has development and testing facilities in Schofield, Wis. It operates manufacturing and assembly facilities in California, Kentucky, Minnesota, North Carolina and Ohio, as well as China and Mexico. The company employs more than 2,600 people and has over 1.5 million square feet of manufacturing space. Greenheck Fan Corporation is a member of the U.S. Green Building Council.