- 3M
- American National Can
- AT&T
- Atlantic Electric Company
- Bartlo Packaging, Inc.
- Bristol-Myers Squibb
- Cammerzell Tool & Die Works
- CGM Industries, Inc.
- Chevron
- Citgo
- Corex Products, Inc.
- Custom Processing Corporation
- Dow Jones & Company, Inc.
- Environmental Disposal Corporation
- Exxon Company, USA
- Exxon Research & Engineering
- FMC
- Ford Motor Corporation
- Gannett Company, Inc.
- Greenfield Auto Salvage
- GTE
- Hatfield Equipment Co., Inc.
- Lockheed Martin
- Meadow Green - Wildcat Corporation
- Millitech Corporation
- Mobil Research & Development Co.
- Norwood Industrial Construction Co.
- Oxford Textile, Inc.
- Permalin Manufacturing Co.
- PSE&G
- Regency Coachworks, Inc.
- Rhodia, Inc. (Rhône-Poulenc, S.A.)
- Seaboard Industries, Inc.
- Superior Carriers, Inc.
- Technical Oil Products
- Tenneco
- Thomas & Betts Corporation
- TOSCO
- Transcend Carriers, Inc. UNC / Airwork Corporation
- Union Carbide