| Sommer Automatic |
| PCM |
| Martin-Engineering |
| Gould-Shawmut |
| IMO |
| Red Dot |
| Greer Hydraulics |
| Bridgeport |
| Numation |
| Foster MFG |
| ETP |
| Madison Electric |
| System Plast |
| Firepower |
| Linemaster Switch Corporation |
| Ismet |
| Brewer Machine & Gear Co. |
| Nolu |
| Skinner |
| 3M |
| US Gear Motors |
| Horner Automation |
| Wittmann |
| Bulldog |
| Gould-ITE |
| Federal Pioneer |
| MG Elettromeccanica |
| Jet |
| Roach Conveyors |
| Silent Hoist & Crane |
| SuperTec |
| Wieland Bamberg |
| Syrelec |
| Athena/Kona |
| Automated Packaging Systems |
| SSAC |
| Struthers-Dunn |
| Telco |
| Power Flame Inc. |
| Saginaw Control & Engineering (SCE) |
