| Alvis Vehicles | Coventry, | England, | UK |
| American Locomotive Company (ALCO) | Schenectady, | New York, | USA |
| BAE Systems | Santa Clara, | California, | USA |
| Borg-Warner Corporation | Auburn, | Michigan, | USA |
| Cadillac Gage | Detroit, | Michigan, | USA |
| Cadillac Tank Plant | Cleveland, | Ohio, | USA |
| Chrysler Delaware Tank Plant | Newark, | Delaware, | USA |
| Cleveland Tank Plant | Brook Park, | Michigan, | USA |
| Daimler Motor Company, Ltd | Coventry, | England, | UK |
| Detroit Arsenal Tank Plant | Warren, | Michigan, | USA |
| Fisher Body Tank Division | Grand Blanc, | Michigan, | USA |
| Food Machinery and Chemical Corporation (FMC) | Santa Clara, | California, | USA |
| General Dynamics Land Systems Canada | London, | Ontario, | Canada |
| Highland Park Plant (Ford) | Highland Park, | Michigan, | USA |
| Krauss-Maffei AG | Munich, | Bavaria, | Germany |
| Lima Tank Plant | Lima, | Ohio, | USA |
| Montreal Locomotive Works | Montreal, | Quebec, | Canada |
| Pressed Steel Car Company | Joliet, | Illinois, | USA |
| R.G. LeTourneau, Inc | Longview, | Texas, | USA |
| White Motor Company | Cleveland, | Ohio, | USA, |
