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 is involved in the transportation of general commodities. Its freight primarily consists of automotive parts; expedited goods; consumer goods, including general retail store merchandise; and manufactured goods, such as heating and air conditioning units. The company also offers brokerage and logistics services, such as transportation scheduling, routing, mode selection, transloading, and other services related to the transportation of freight. As of December 31, 2017, it operated a fleet of 1,721 trucks, which includes 18 trucks leased under operating leases and 560 independent contractor trucks; and 5,795 trailers. The company was founded in 1979 and is headquartered in Tontitown, Arkansas.