| Allis-Chalmers Mfg Co | Milwaukee, | Wisconsin, |
USA |
| American Car and Foundry Company | St. Charles, | Missouri, |
USA |
| American La France | Elmira, | New York, |
USA |
| Birmingham Small Arms Company (BSA) | Birmingham, | England, |
UK |
| Brockhouse Engineering Ltd | Southport, | England, |
UK |
| Bucyrus Company | Milwaukee, | Wisconsin, |
USA |
| Chevrolet Plant 2 | St Louis | Missouri, |
USA |
| Cleveland Tractor Co | Cleveland, | Ohio, |
USA |
| Crossley Motors Ltd | Stockport, | England, |
UK |
| David Brown Ltd | Meltham Mills, | England, |
UK |
| Dodge Division of Chrylser Motors | Detroit, | Michigan, |
USA |
| Douglas Equipment | Cheltenham, | England, |
UK |
| Ford Motor Company | Highland Park, | Michigan, |
USA |
| Ford Motor Company Ltd | Dagenham, | England, |
UK |
| Lancer Boss | Leighton Buzzard, | England, |
UK |
| Marion Steam Shovel Company | Marion, | Ohio, |
USA |
| Morris Motors Ltd | Cowley, | England, |
UK |
| Oshkosh Truck Corporation | Oshkosh, | Wisconsin, |
USA |
| Pacific Car and Foundry | Renton, | Washington, |
USA |
| R A Lister & Co | Dursley, | England, |
UK |
| Rover Motor Co | Solihull, | England, |
UK |
| Studebaker Corp | Southbend, | Indiana, |
USA |
| Westinghouse Air Brake Company | Wilmerding, | Pennsylvania, |
USA |
| Willys-Overland Motors | Toledo, | Ohio, |
USA |
