| Magnetrol |
| Universal Dynamics Inc. |
| Liquid Metronics Inc. |
| ITE |
| Toshiba |
| Bonesi |
| Baldor Electric Company |
| Marathon Electric |
| SEW-Eurodrive |
| Dayton |
| US Motors |
| Demag |
| Bodine Electric Company |
| Coronado Engineering |
| Lafert |
| Leeson |
| Arnold Muller |
| Mannesmann Demag |
| Westinghouse |
| Sumitomo Machinery Corporation of America |
| WEG |
| Motor Appliance Corporation (MAC) |
| Dynamatic |
| General Electric (GE) |
| Siemens-Allis |
| Omron |
| Rockwell International |
| Wagner |
| Louis Allis |
| MagneTek |
| Powertec |
| Century Electric |
| MAC Valves Inc. |
| Lenze |
| Hartmann & Braun |
| Gould-Century Electric |
| Wood’s |
| Anton Piller |
| Boston Gear |
| Baldor-Reliance |
