Superior Trailer Works
Transportation/Trucking/RailroadCalifornia, United States11-50 Employees
Superior Trailer Works is a family-owned manufacturer in southern California that has produced dump trucks and trailers since 1935. Its equipment is designed for hauling aggregates, asphalt, mulch, and soils, serving operators in construction and related material-handling work. The firm emphasizes lighter-weight units—about 10% lighter than many competitors—achieved through innovative design and high-strength steels to boost payload, wear resistance, and overall efficiency. The company originated in downtown Los Angeles and relocated to Fontana in 1983, where it remains based. It has earned international recognition, including the Swedish Steel Award in 2003, illustrating its standing within the truck equipment sector.