Located in Cookeville, Tenn., Tutco supplies heating elements and electric heater assemblies for various industries, including home appliance, air conditioning and heating industries. The company has a staff of designers, manufacturers, suppliers, designers, innovators and inventors. It has a more than 190,000-square-foot manufacturing and warehouse facility. Founded in 1938, Tutco manufactures electric-resistance heating elements for a wide range of applications, including compressors, clothes dryers, duct heaters, heat pumps, window air conditioners, electric furnaces and other devices. The company runs an in-house test laboratory for internal lab projects, including analyzing material and production costs; testing and qualifying new materials; and designing heating elements.