Knight-Swift Transportation Holdings, Inc. engages in the provision of multiple truckload transportation and logistics services. It operates through the following segments: Truckload, LTL, Logistics, Intermodal, and All Other. The Truckload segment includes irregular routes and dedicated, refrigerated, expedited, flatbed, and cross-border transportation of various products, goods, and materials. The LTL segment offers regional direct service and serves customers' national transportation needs by utilizing key partner carriers for coverage areas outside of network. The Logistics segment focuses on a multitude of shipping solutions, including additional sources of truckload capacity and alternative transportation modes, by utilizing a vast network of third-party capacity providers and rail providers, as well as certain logistics and freight management services. The Intermodal segment is involved in the regional operating model, while also allowing to better serve customers in longer haul lanes and reduces investment in fixed assets. The All Other segment refers to support services provided to customers and third-party carriers including equipment maintenance, equipment leasing, warehousing, trailer parts manufacturing, warranty services, and insurance for independent contractors. The company was founded in 1966 and is headquartered in Phoenix, AZ.

J.B. Hunt Transport Services, Inc. engages in the provision of logistics solutions. It operates through the following segments: Intermodal (JBI), Dedicated Contract Services (DCS), Integrated Capacity Solutions (ICS), Final Mile Services (FMS) and Truckload (JBT). The JBI segment offers intermodal freight operations for rail carriers. The DCS segment includes private fleet conversion and final-mile delivery services. The ICS segment provides traditional freight brokerage and transportation logistics solutions. The FMS segment focuses on last-mile delivery services to customers through a nationwide network of cross-dock and other delivery system network locations. The JBT segment is responsible for full-load, dry-van freight that is transported via roads and highways. The company was founded by Johnnie Bryan Hunt, Sr. and Johnelle D. Hunt on August 10, 1961 and is headquartered in Lowell, AR.

PAMT Corp. is a holding company, which engages in the provision of truckload and logistics services through its subsidiaries. Its freight consists primarily of automotive parts, expedited goods, consumer goods, such as general retail store merchandise, and manufactured goods, such as heating and air conditioning units. The company was founded in June 1986 and is headquartered in Tontitown, AR.