Founded in 1950, Southeastern Freight Lines is a privately held company that offers a range of transportation services. It is one of the largest less-than-truckload trucking companies in the United States. The company maintains more than 70 service centers in over 10 states in the southeastern United States. Southeastern Freight Lines operates a nearly 30,000-square-foot warehouse in Texas. It maintains a staff of approximately 6,800 employees. The company provides various shipping, assembling and distribution solutions. Southeastern Freight Lines operates an inventory of more than 1,000 pallet decks. It offers transportation services for carpet and related products. The company works in collaboration with Dayton Freight Lines.