Founded in 1989, the Fox Valley Spring Company manufactures a wide range of custom springs and wire forms for several original equipment manufacturers (OEM) throughout the United States. Based in Greenville, Wis., it operates from 25,000-square-foot that houses 14 automated spring coilers, 7 of which are computer-controlled. Its product basket comprises compression springs, extension springs, torsion springs, wire forms, die springs, flat steel and more. In addition, the firm offers computer-design spring capabilities to its clients.