Glasgow Works Gloucester Railway Carriage & Wagon Company Hawthorn Leslie & Company Hitachi Newton Aycliffe Hudswell Clarke Hunslet Engine Company Kerr Stuart Leeds Forge Company Manning Wardle Metro-Cammell Metropolitan-Vickers Midland Railway Carriage and Wagon Company Nasmyth, Gaskell and Company North British Locomotive Company Pressed Steel Company R&W Hawthorn Robert Stephenson & Company Sentinel Waggon Works Swindon Works Vivarail Vulcan Foundry William Beardmore & Company Yorkshire Engine Company United States Adrian Car Company (1869–1883) Adrian, Michigan W.C. Allison & Sons (c. 1840 – c. 1895) Philadelphia, Pennsylvania Allegheny Car Company (c. 1873 – 1882) Swissvale, Pennsylvania Alstom Altoona Manufacturing Company (c. 1870 – c. 1900) Altoona, Pennsylvania Aluminum Company of America (Alcoa) American Bridge Company (United States Steel) American Car & Foundry (ACF) (to ARI) American Car Company (1852–1856) Chicago, Illinois AMF, Beard, Texas Anniston Car Company (1883–1887) Anniston, Alabama ARI (American Railcar Industries, formerly AC&F), to Greenbrier 2019 Austin-Western (to Baldwin-Lima-Hamilton 1951) Baker, Jackson & Company (1880s) Latrobe, Pennsylvania Baldwin-Lima-Hamilton (until 1963) Baltimore Car and Foundry Barney and Smith Car Company (1849 – c. 1923) Dayton, Ohio Beaver Falls Car Company (1880s) Beaver Falls, Pennsylvania Bellefonte Car Manufacturing Company (c. 1873 – 1881) Bellefonte, Pennsylvania Berwick Forge and Fabricating – Berwick, Pennsylvania (to Whittaker) Bethlehem Steel Corporation (1901–2003) Johnstown, Pennsylvania Bettendorf Company (c. 1902 – 1942) Bettendorf, Iowa Billmeyer and Small (1852 – c. 1910) York, Pennsylvania Blain Brothers Car Works (1880s) Huntingdon, Pennsylvania Bloomsburg Car Manufacturing Company (c. 1868 – c. 1900) Bloomsburg, Pennsylvania Bombardier Transportation, US Bowers, Dure & Company (1871–1886) Wilmington, Delaware Bridgeport Car Works (1870s) Bridgeport, Pennsylvania JG Brill Company (Brill) Brookville Equipment Corporation Budd Company (Budd) (1932–) Philadelphia, Pennsylvania Buffalo Car Manufacturing Company (1872–1890) Buffalo, New York Butler Manufacturing Company (1971–1973) Murfreesboro, Tennessee (built covered hoppers for NACC, later a NACC facility) Cambria Steel Company F.E. Canda & Company (until 1878) Chicago, Illinois Carlisle Manufacturing Company (c. 1870 – c. 1900) Carlisle, Pennsylvania Casebolt, Henry & Company (1863 – c. 1876) San Francisco, California Chattanooga Car & Foundry Company (1887–) Chattanooga, Tennessee Chicago Steel Car Company Chickasaw Ship Building & Car Company (1921–1928) Fairfield, Alabama Clark Car Company Cleveland Bridge & Car Works (1878–) Cleveland, Ohio W. Clough (1852–) Madison, Indiana Colorado Railcar Connellsville Machine and Car Company (1870s-1880s) Connellsville, Pennsylvania Conshohocken Car Works (1880–) Conshohocken, Pennsylvania Cummings Car Works (1851–1876) Jersey City, New Jersey Darby Corporation (1965–1989 ) Kansas City, Kansas Dauphin Car Works