P.A.M. Transportation Services, Inc., through its subsidiaries, operates as a truckload transportation and logistics company in the United States, Mexico, and Canada. The company operates a truckload dry van carrier that transports general commodities. Its freight primarily consists of automotive parts; expedited goods; consumer goods, such as general retail store merchandise; and manufactured goods, including heating and air conditioning units. The company also provides brokerage and logistics services. As of December 31, 2021, it operated a fleet of 1,970 trucks, which included 378 independent contractor trucks; and trailer fleet consisted of 6,859 trailers. The company was founded in 1980 and is headquartered in Tontitown, Arkansas.