| A-D Technologies | Gold’n Plump | Novant Healthcare |
| American Fidelity | Hadco | Oklahoma Department of Career Technology |
| American Standard | Halliburton | Oklahoma Manufacturing Alliance |
| American Woodmark | Hamilton Standard | Pall Corporation |
| Anchor Glass Container Corporation | Harley Davidson | Pelco Products |
| AXIOHM | Harris Semiconductor | Pan Pacific Products |
| Bell South | Holley Carburetor | Poly-Scientific |
| Bethlehem Steel | IBM | PPG Automotive Coatings and Resins |
| BHP Billiton | IMSS | Precision Components |
| Blitz USA | IRS | Remy Power Products |
| Buick Engine | Jetta Corporation | Republic Paper |
| Cardinal Glass | Klockner Pentaplast | RJ Reynolds |
| Chinet Company | Kraft Foods | Rosewood |
| Copeland Corporation | Lagoven | Saint Thomas Hospital |
| Corning Glass | Louis Dreyfus Company | Scripps Health |
| Dana Corporation | Marshall Durbin | Shared Medical System |
| Degussa Engineered Carbons | Masonite | Simonton Windows |
| Disputada | McAlester Army Munitions Plant | Social Security Administration |
| Dow Chemical | Metzeler Automotive Profile Systems | Telstra Communications, Australia |
| Eagle-Picher Technologies | Motorola | Umicore |
| Emerson Corporation | NASA | Universal Leaf Tobacco |
| Ford EED | Nashua | Vitro Envases |
| Ford Glass | National Institutes of Health | Wheaton Franciscan Health Care |
| Franklin Electric | Nestle Purina Corporation | White-Rodgers |
| Gallo Glass | NiSource | |
| Gallo Winery | Northrup-Gruman |