Union Pacific Corporation, through its subsidiary, Union Pacific Railroad Company, operates in the railroad business in the United States. The company offers transportation services for grain and grain products, fertilizers, food and refrigerated products, and coal and renewables to grain processors, animal feeders, ethanol producers, renewable biofuel producers, and other agricultural users; and construction products, industrial chemicals, plastics, forest products, specialized products, metals and ores, petroleum, liquid petroleum gases, soda ash, and sand, as well as finished automobiles, automotive parts, and merchandise in intermodal containers. Union Pacific Corporation was founded in 1862 and is headquartered in Omaha, Nebraska.

Canadian National Railway Company, together with its subsidiaries, engages in the rail, intermodal, trucking, and marine transportation and logistics business in Canada and the United States. The company provides rail services, which include equipment, custom brokerage services, transloading and distribution, business development and real estate, and private car storage services; and intermodal services, such as temperature controlled cargo, port partnerships, and logistics parks. It offers trucking services, such as door-to-door services, import and export dray, interline services, and specialized services, comprising flatbed trucks, on-deck mobile transport trays, expedited cargo, and permit/overweight services; and supply chain services. It serves automotive, coal, fertilizers, temperature controlled cargo, forest products, dimensional, grain, metal and minerals, petroleum and chemicals, consumer goods, and third party logistics applications. The company operates a rail network of approximately 20,000 route-miles of track and shipping spanning. Canadian National Railway Company was incorporated in 1919 and is headquartered in Montreal, 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.

TC Energy Corporation operates as an energy infrastructure company in North America. It operates through five segments: Canadian Natural Gas Pipelines; U.S. Natural Gas Pipelines; Mexico Natural Gas Pipelines; Liquids Pipelines; and Power and Energy Solutions. The company builds and operates a network of 93,600 kilometers of natural gas pipelines, which transports natural gas from supply basins to local distribution companies, power generation plants, industrial facilities, interconnecting pipelines, LNG export terminals, and other businesses. It also has regulated natural gas storage facilities with a total working gas capacity of 532 billion cubic feet. In addition, it has approximately 4,900 kilometers of liquids pipeline system that connects Alberta crude oil pipeline to refining markets in Illinois, Oklahoma, Texas, and the United States Gulf Coast. Further, the company owns or has interests in power generation facilities with approximately 4,600 megawatts; and owns and operates approximately 118 billion cubic feet of non-regulated natural gas storage facilities in in Alberta, Ontario, Québec, and New Brunswick. The company was formerly known as TransCanada Corporation and changed its name to TC Energy Corporation in May 2019. TC Energy Corporation was founded in 1951 and is headquartered in Calgary, Canada.

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.

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.

Pamt Corp., through its subsidiaries, operates as a truckload transportation and logistics company in the United States, Mexico, and Canada. The company operates a truckload dry van carrier that transports general commodities, such as automotive parts; expedited goods; consumer goods, such as general retail store merchandise; and manufactured goods, including heating and air conditioning units. The company also provides brokerage and logistics services. As of December 31, 2023, it operated a fleet of 2,200 trucks, which included 300 independent contractor trucks; and 8,567 trailers. The company was formerly known as P.A.M. Transportation Services, Inc., and changed its name to Pamt Corp. in November 2024. The company was founded in 1980 and is headquartered in Tontitown, Arkansas.

FreightCar America, Inc., through its subsidiaries, engages in design, manufacture, and sale of railcars and railcar components for the transportation of bulk commodities and containerized freight products in the United States and Mexico. It operates in two segments, Manufacturing and Parts. The company offers a range of railcars, including open top hoppers, mill gondola cars, intermodal and non-intermodal flat cars, coal cars; bulk commodity cars covered hopper cars, coil steel cars, boxcars, woodchip hoppers, aluminum vehicle carriers, and articulated bulk container railcars. It also sells used railcars; rebuilds, converts, and leases railcars; and sells forged, cast, and fabricated parts for various railcars. The company's customers primarily include shippers, railroads, and financial institutions. FreightCar America, Inc. was founded in 1901 and is headquartered in Chicago, Illinois.