| Filter-Mart Corporation |
| Schroeder Industries |
| Jefferson Electric |
| Baldwin |
| Fram |
| Zinga Industries Inc |
| Marvel |
| Wix |
| Internormen Technology GmbH |
| Vortex |
| Stauff |
| HY-PRO |
| Scales Air Compressor |
| Frigel |
| Harris Equipment Corp. |
| Eagle Signal |
| LHA |
| General Bearing |
| Colormatrix |
| Cochrane Compressor |
| Flow Ezy |
| Sporlan |
| TRW Cinch Connectors |
| TRW |
| Hobbs |
| Autotron Inc. |
| Leviton |
| Farmer Electric |
| E.I.L. Instruments Inc. |
| Midwest Electric |
| AMF-Paragon |
| Tuskin |
| Wentworth Mould |
| Duplicraft |
| TCC |
| Nortel |
| Westland Corporation |
| Acme Engineering & Manufacturing Corp. |
| Delta Transformers Inc. |
| SWF McDowell |
