Watco Companies, L.L.C. (Watco) is a transportation company based in Pittsburg, Kansas, formed in 1983 by Charles R. Webb. Watco was composed of four divisions: transportation, mechanical, terminal and port services, and compliance. Watco is the owner of Watco Transportation Services, L.L.C. (WTS), which operates 41 short line railroads in the U.S. and Australia. It is one of the largest short line railroad companies in the United States. As of December 2018, it operates on 5,500 miles (8,900 km) of leased and owned track. Also under transportation is the contract switching the company provides service for 30 customers. That was the service that Watco originally offered before it branched out into other areas.