(1880s) Dauphin, Pennsylvania Davenport and Bridges (1834 – c. 1856) Cambridgeport, Massachusetts Davenport, Bridges & Company (1850s) Fitchburg, Massachusetts Dawson Manufacturing Company (c. 1870 – c. 1880) Dawson, Georgia Detroit Car and Manufacturing Company (1861–1870) Detroit, Michigan Detroit Car Works (1872–1879) Adrian (Detroit), Michigan DIFCO (originally Differential Steel Car Co.,) Findlay, Ohio (to Trinity) William Dyer East Railcar Eaton & Gilbert (1833–1893) Troy, New York Ebenezer Railcar, Buffalo, New York Edwards Rail Car Company (1921–1942) Edwards Rail Car Company (1997–2008) Elliott Car Company (c. 1885 – 1899) Gadsden, Alabama Elmira Car Manufactory (1862–1886) Elmira, New York Emmons Rail Car, York, Pennsylvania Empire Car Works (c. 1849 – c. 1890) York, Pennsylvania Ensign Manufacturing Company (c. 1873 – 1899) Huntington, West Virginia (to AC&F) Enterprise Railway Equipment Company Erie Car Works (1868 – c. 1920) Erie, Pennsylvania Evans Products (1964–1972) Plymouth, Michigan FMC (formerly Farm Machinery Corp.) (1965-) South Charleston, West Virginia, (1965-1985) Portland, Oregon with acquisition of GBEC Franklin Foundry Machine & Car Works (c. 1840 – c. 1880) Franklin, Pennsylvania Frederick & Company (c. 1870 – c. 1900) Catasaqua, Pennsylvania FreightCar America (formerly Johnstown America Corporation, originally Bethlehem Steel Corp.) Freight Car Services Fruehauf Rail Division (formerly Magor Car Corp.) (1964–1973) Clifton, New Jersey Fruit Growers Express (1922–) Alexandria, Virginia Fulton Car Works/Keck & Hubbard (1847 – c. 1860) Cincinnati, Ohio Fulton Car Works/W.W. Wetherell (1839–1860s) Sandusky, Ohio Gantt Manufacturing Company (1973–) Greenville, South Carolina General American Transportation Corp. (GATX) (1898–) Sharon, Pennsylvania/East Chicago, Indiana/Warren, Ohio (carbuilding operations to Trinity Industries 1984) General Steel Industries (GSI; formerly General Steel Castings) (c. 1962–1972) Granite City, Illinois Georgia Railcar (until 1883) Carterville, Georgia (to Portec 1978; to Thrall 1984) Georgia Car & Manufacturing Company (c. 1900–) Savannah, Georgia Gilbert Car Company The Gregg Company (c. 1900–) Hanensack, NJ; mainly export, mining and sugar plantation equipment John L. Gill (1862–1883) Columbus, Ohio John L. Gill, Jr. (until 1885) Allegheny, Pennsylvania Golden Tye (division of NRUC), Pickens, South Carolina James Goold & Company (1831 – c. 1890) Albany, New York The Greenbrier Companies (Greenbrier) Greenville Steel Car Company (GSC) (1916–) Greenville, Pennsylvania (to Trinity Industries 1986) Grice & Long (1860 – c. 1873) Trenton, New Jersey Grove Works (1848–1855) Hartford, Connecticut Gulf Railcar Gunderson Brothers Engineering Co. (GBEC)(1958–1973) Portland, Oregon (to FMC 1965) Gunderson (1985 with Greenbrier's acquisition of FMC) Hannibal Car Works (1870s) Hannibal, Missouri Harlan & Hollingsworth (1836 – c. 1945)