| | Cooper Tools (Springfield, OH) | |
| | Crescent Electric Motor Svc (Appleton, WI) | |
| | Emerson Motor Co (Sturgeon Bay, WI) | |
| | Fisher Electric Motor Service (Fort Wayne, IN) | |
| | Hansen Corp (Princeton, IN) | |
| | Huntingdon Electric Motor (Huntingdon, PA) | |
| | Industrial Electrical Motors (Philadelphia, PA) | |
| | Irish Electric Motor Service (Saint Marys, OH) | |
| | Kaybee Engineering Co Inc (Westmont, IL) | |
| | Leeson Electric Corp (Black River Fls, WI) | |
| | Lincoln Electric Holdings Inc (Euclid, OH) | |
| | Mader Electric Inc (Sarasota, FL) | |
| | Mader Electric Motor Inc (Springfield, OH) | |
| | Mamco Corp (Franksville, WI) | |
| | Martindale Electric Co (Lakewood, OH) | |
