Established in 1914, Peterson Spring is one of the largest privately held spring manufactures in North America. Its product line includes engine valve springs, compression springs, rings, multiform clips, wire forms, hose clamps, stampings, torsion springs and special components. The company provides product development by designing, prototyping, testing and manufacturing to customer specifications. Its services include engineering, distribution, kitting, packaging, short run, testing and assembly. Peterson Spring serves the automotive, aerospace, agricultural and home appliance markets. The company has headquarters in Southfield, Mich., manufacturing plants and specialty operations in the United States, Canada, Mexico and England.