The Pullman Company, founded by George Pullman, was a manufacturer of railroad cars in the mid-to-late 19th century through the first half of the 20th century, during the boom of railroads in the United States. Through rapid late-19th century development of mass production and takeover of rivals, the company developed a virtual monopoly on production and ownership of sleeper cars.

Founded in 1925, The Brotherhood of Sleeping Car Porters and Maids, commonly referred to as the Brotherhood of Sleeping Car Porters (BSCP), was the first labor organization led by African Americans to receive a charter in the American Federation of Labor (AFL). The BSCP gathered a membership of 18,000 passenger railway workers across Canada, Mexico, and the United States.