Canadian Pacific Kansas City Limited, together with its subsidiaries, owns and operates a transcontinental freight railway in Canada, the United States, and Mexico. The company transports bulk commodities, including grain, coal, potash, fertilizers, and sulphur; merchandise freight, such as forest products, energy, chemicals and plastics, metals, minerals, consumer products, and automotive; and intermodal traffic comprising retail goods in overseas containers. It also provides rail and intermodal transportation services over a network of approximately 20,000 miles serving business centres. The company was formerly known as Canadian Pacific Railway Limited and changed its name to Canadian Pacific Kansas City Limited in April 2023. Canadian Pacific Kansas City Limited was incorporated in 1881 and is headquartered in Calgary, Canada.

CSX Corporation, together with its subsidiaries, provides rail-based freight transportation services. The company offers rail services; and transportation of intermodal containers and trailers, as well as other transportation services, such as rail-to-truck transfers and bulk commodity operations. It also transports chemicals, agricultural and food products, minerals, automotive, forest products, fertilizers, and metals and equipment; and coal, coke, and iron ore to electricity-generating power plants, steel manufacturers, and industrial plants, as well as exports coal to deep-water port facilities. In addition, the company provides intermodal services through a network of approximately 30 terminals transporting manufactured consumer goods in containers; and drayage services, including the pickup and delivery of intermodal shipments. It serves the automotive industry with distribution centers and storage locations, as well as connects non-rail served customers through transferring products, such as plastics and ethanol from rail to trucks. The company operates approximately 20,000 route mile rail network, which serves various population centers in 26 states east of the Mississippi River, the District of Columbia, and the Canadian provinces of Ontario and Quebec, as well as owns and leases approximately 3,500 locomotives. It serves production and distribution facilities through track connections. CSX Corporation was incorporated in 1978 and is headquartered in Jacksonville, Florida.

Norfolk Southern Corporation, together with its subsidiaries, engages in the rail transportation of raw materials, intermediate products, and finished goods in the United States. The company transports agriculture, forest, and consumer products comprising soybeans, wheat, corn, fertilizers, livestock and poultry feed, food products, food oils, flour, sweeteners, ethanol, lumber and wood products, pulp board and paper products, wood fibers, wood pulp, beverages, and canned goods; chemicals consist of sulfur and related chemicals, petroleum products comprising crude oil, chlorine and bleaching compounds, plastics, rubber, industrial chemicals, chemical wastes, sand, and natural gas liquids; metals and construction materials, such as steel, aluminum products, machinery, scrap metals, cement, aggregates, minerals, clay, transportation equipment, and military-related products; and automotive, including finished motor vehicles and automotive parts, as well as coal. It also transports overseas freight through various Atlantic and Gulf Coast ports; and operates an intermodal network. As of December 31, 2023, the company operated approximately 19,100 route miles in 22 states and the District of Columbia. Norfolk Southern Corporation was incorporated in 1980 and is headquartered in Atlanta, Georgia.

C.H. Robinson Worldwide, Inc., together with its subsidiaries, provides freight transportation services, and related logistics and supply chain services in the United States and internationally. It operates through two segments: North American Surface Transportation and Global Forwarding. The company offers transportation and logistics services, such as truckload, less than truckload transportation brokerage services, which include the shipment of single or multiple pallets of freight; intermodal transportation that comprises the shipment service of freight in containers or trailers by a combination of truck and rail; and non-vessel operating common carrier and freight forwarding services, as well as organizes air shipments and provides door-to-door services. It also provides customs brokerage services; and other logistics services, such as fee-based managed, warehousing, small parcel, and other services. It has contractual relationships with approximately 45,000 transportation companies, including motor carriers, railroads, and ocean and air carriers. In addition, the company is involved in the buying, selling, and/or marketing of fresh fruits, vegetables, and other value-added perishable items under the Robinson Fresh brand name. Further, the company offers transportation management services or managed TMS; and other surface transportation services. It provides its fresh produce to grocery retailers, restaurants, produce wholesalers, and foodservice distributors through a network of independent produce growers and suppliers. The company was founded in 1905 and is headquartered in Eden Prairie, Minnesota.

TFI International Inc., together with its subsidiaries, provides transportation and logistics services in the United States and Canada. The company operates through Package and Courier, Less-Than-Truckload (LTL), Truckload (TL), and Logistics segments. The Package and Courier segment engages in the pickup, transport, and delivery of items in North America. The LTL segment is involved in the pickup, consolidation, transportation, and delivery of smaller loads. The TL segment offers expedited transportation, flatbed, tank, container, and dedicated services. This segment also carries full loads directly from the customer to the destination using a closed van or specialized equipment. The Logistics segment provides asset-light logistics services, including brokerage, freight forwarding, and transportation management, as well as small package parcel delivery. As of December 31, 2023, it operates 11,455 trucks, 34,599 trailers, and 7,504 independent contractors. The company was formerly known as TransForce Inc. and changed its name to TFI International Inc. in December 2016. TFI International Inc. was founded in 1957 and is headquartered in Saint-Laurent, Canada.

Schneider National, Inc., together with its subsidiaries, provides surface transportation and logistics solutions in the United States, Canada, and Mexico. It operates through three segments: Truckload, Intermodal, and Logistics. The Truckload segment offers over the road freight transportation services primarily through dry van, bulk, temperature-controlled, and flat-bed trailers across either network or dedicated configurations. The Intermodal segment provides door-to-door container on flat car services through a combination of rail and dray transportation using company-owned containers, chassis, and trucks. The Logistics segment offers asset-light freight brokerage, supply chain, warehousing, and import/export services to manage and move its customers' freight. The company leases equipment, such as trucks to owner-operators; and provides insurance for the company drivers and owner-operators. Schneider National, Inc. was founded in 1935 and is headquartered in Green Bay, Wisconsin.

Hub Group, Inc., a supply chain solutions provider, offers transportation and logistics management services in North America. The company's transportation services include intermodal, truckload, less-than-truckload, flatbed, temperature-controlled, and dedicated and regional trucking, as well as final mile, railcar, small parcel, and international transportation. Its logistics services comprise full outsource logistics solution, transportation management, freight consolidation, warehousing and fulfillment, final mile delivery, and parcel and international services. The company also provides dry van, expedited, less-than-truckload, refrigerated, and flatbed truck brokerage services. It offers a fleet of approximately 2,300 tractors, 460 independent owner-operators, and 4,300 trailers to its customers, as well as the management and infrastructure. The company serves a range of industries, including retail, consumer products, and durable goods. As of December 31, 2023, it owned approximately 50,000 dry, 53-foot containers, as well as 900 refrigerated and 53-foot containers. The company was founded in 1971 and is headquartered in Oak Brook, Illinois.

Heartland Express, Inc., together with its subsidiaries, operates as a short-to-medium, and long-haul truckload carrier in the United States and Canada. It primarily provides nationwide asset-based dry van truckload service for shippers; cross-border freight and other transportation services; and temperature-controlled truckload services. The company offers its services under the Heartland Express and Millis Transfer brand names. It primarily serves retailers and manufacturers in consumer goods, appliances, food products, and automotive industries. The company was founded in 1978 and is headquartered in North Liberty, Iowa.