| Manufacturing | |
| Ashley Furniture | Nucleonics |
| Acco Chain Company | Nelson's Ice Cream |
| Alloy Surfaces | Nice Bearings |
| BC Natural Chicken | Nitterhouse Masonry |
| Bell & Howell | NTN-BCA Bearing |
| Carlisle Syntec | Oxford Bookbinding |
| Carlisle Container | Patton Pictures |
| Coating Tech. | Pella Windows |
| D. L. Martin | Philadelphia Mixers |
| Datum Filing Sys. | Professional Speakers |
| Dauphin Graphic Machines | RDL Inc. |
| Donsco Corporation | Reckitt Benckiser |
| Edlon Corporation | Reprographics |
| Ellis Coffee Company | Ritner Steel |
| Fenner Drive | RH Sheppard |
| General Doors | Russel Standard |
| Houghton International | SKF Bearing Company |
| Hydra-Pneu Company | Souriau USA |
| Impress Industries | Strine Printing |
| Intercon Systems | Supelco, Inc. |
| Iron Works | TVM Hardwoods |
| Jefferson Smurfit Corporation | T-Thermal |
| Kauffmans Ka-Hi | Tubro Company |
| Kessler Meats | W.A.I. |
| Knouse Foods | World Electronics |
| Locus Pharmaceuticals | York Sheet Metal |
| Mailwell Envelope | Zemco Tool |
| Mauell Corporation |
Utility Rates Analysts