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. As of December 31, 2018, it operated a fleet of 2,031 trucks, which includes 597 independent contractor trucks; and 6,397 trailers. P.A.M. Transportation Services, Inc. was founded in 1980 and is headquartered in Tontitown, Arkansas.