Founded in 1990, Contract Manufacturer is one of the highest volume producers of diversified trailer lines in the United States. The company manufacturers the steel line of horse, stock, cargo and utility trailers. Contract Manufacturer manufactures aluminum exterior and steel frame horse and cargo trailers, as well as all-aluminum horse and stock trailers and a complete line of truck beds. It also offers grill guards, hinges, hitch balls, hubs, jacks and lights. The company manufactures trailers under the CM brand. Contract Manufacturer is located in Madill, Okla.