P.A.M. Transportation Services, Inc., through its subsidiaries, operates as a truckload transportation and logistics company in the United States, Canada, and Mexico. The company is involved in the transportation of general commodities. Its freight primarily consists of automotive parts; expedited goods; and 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, 2016, it operated a fleet of 1,855 trucks, which includes 357 trucks leased under operating leases and 578 independent contractor trucks; and 5,699 trailers comprising 232 trailers leased under operating leases. The company was founded in 1979 and is headquartered in Tontitown, Arkansas.