Chemical
- Allied Processors, Inc
- American Cyanamid
- BASF Corporation
- Bayer
- BF Goodrich
- Casco
- Celanese
- Chemours / E.I. Dupont
- Ciba Geigy Corporation
- Cookson Pigments, Inc
- Cytec
- Dow Chemical
- Eastman Chemical
- Emerald Performance Materials
- Exxon
- Ferro
- Folla, Norway
- Formosa Plastic Corp.
- Hoechst Celanese
- Junckers Denmark
- Kerr-McGee Chemical
- Lanxess
- Lyondell
- Mane
- Milliken
- Mobay Chemical Corp
- Occidental Chemical
- Occidental Petroleum / Cain Chemical
- Olin
- Procter and Gamble
- Renessenz
- SCM Glidco
- Union Carbide
- Uniroyal Chemical Ltd.
- VFT Inc.
Food Industries
- A.E. Staley
- ADM
- Alabama Feed Products
- Anheuser Busch
- Anklam Sugar
- Archer, Daniels, Midland (ADM)
- Armour Swift Eckrich
- Azucarrera Spain
- Bacardi Puerto Rico
- Cargill, Inc.
- Coca Cola Products, Inc
- Conagra
- Coors Brewing Co.
- Dr Pepper / Cadbury
- Farmer's Pride
- Frito Lay
- Genzyme
- Green Mountain / Keurig
- Griffin Industries
- International Flavors
- Koch Foods
- Kraft
- Lipton
- M&M Mars
- McCain Foods
- Nabisco Foods
- Pilgrim's Pride
- S.G.A.E., Spain
- Saica, Spain
- Schwans Foods
- Sierra Nevada Brewing
- Sipchem Saudi Arabia
- Tropicana
- Tyson Foods
- Valley Proteins
- Virginia Poultry
- Wampler Longacre
Petrochemical & Refinery
- Aramco
- BASF
- BP Oil
- BP Refinery
- Equilon
- Ferro Corporation
- Flint Hill Resources
- Georgia Gulf
- Gulf Coast Waste Disposal Houston
- Lyondell / Basell refinery
- Merck
- Ohio Oil Gathering
- Pemex Refinery
- Premcor Refining
- Saudi Arabia Oil Co.
- Shell Refinery
- Tesoro Refinery
- Texaco
- Uniroyal Chemical Ltd.
Pharmaceutical
- Alpharma
- Amgen
- Bayer Corporation
- Eli Lilly
- Lonza Biopharma Swiss
- Merck Chemical
- Novartis
- Pfizer
- Schering Plough
- Sterling Winthrop
- Warner-Lambert