CSX Corporation is one of United States’ leading transportation companies. The company, based in Jacksonville, Fl, offers rail-based freight transportation services like traditional rail service, transport of intermodal containers and trailers apart from rail-to- truck transfers.

CSX, incorporated in 1978 under Virginia law, offers customers access to a large and interconnected transportation network. The company's fiscal year coincides with the calendar year.

CSX Transportation is the company’s primary operating subsidiary. Through the subsidiary, the company provides an important link to the transportation supply chain through its rail network, spanning across approximately 20,000 route miles. CSXT also offers service to multiple production and distribution facilities apart from managing activities like real estate sales .

Through this vast network, the company offers services to major population centers in 26 states east of the Mississippi River, the District of Columbia and Ontario and Quebec in Canada. CSX owns multiple locomotives. Freight, switching and auxiliary units are present in the locomotive fleet. CSX also leases locomotives on a short-term basis.

CSX conducts its operations primarily through five business lines:

Merchandise (accounted for 59% of total revenue in 2023): The merchandise business consists of one million carloads per year of aggregates, which include crushed stone, sand and gravel, metal, phosphate, fertilizer, food, consumer (manufactured goods and appliances), agricultural, paper and chemical products.

Coal (17%): The segment delivers carloads of coal, coke and iron ore to electricity generating power plants, ocean, river and lake piers and terminals, steel makers apart from industrial plants.

Intermodal (14%): Through its network of approximately 30 terminals, Intermodal serves all the major markets east of the Mississippi River and transports, mainly manufactured consumer goods in containers, thereby providing customers truck-like service for longer shipments.

Trucking (6%): Introduced in third-quarter 2021, the segment consists of the operations of Quality Carriers, which was acquired in July 2021.

Other (4%): The segment, introduced in the second quarter of 2010, includes revenue from regional subsidiary railroads and incidental charges.