Bio-Tech
- Abbott Labs
- Alpha Omega
- American Yeast
- Bio-Medical Ingene
- Bristol Meyers-Squibb
- Gulf Chem
- Xoma
Pulp and Paper
- Boise Cascade
- Chinet
- Georgia Pacific
- Lincoln
- Domtar Paper Co
(AKA Weyerhaeuser)
Pharmaceutical
- Argonne Ingene
- Bayer
- Ciba Giegy
- Eli Lilly
- Wyeth Labs
Drinking Water – Food & Beverage
- Blitz-Weinhard
- American Can
- Anaheim Citrus
- Campbell Soups
- Kraft Foods
- Sara Lee
- Tropicana
- Saker Shoprite
(Dunkin Donuts)
- City of Canton Ohio
- City of Los Angeles, CA
- City of Baltimore, MD
- City of Miami, FL
- Dade County, FL
- Cedae Park Reclaim
- General Motors
Mining
- Advanced Mining
- Brohm Mining
- Martinka Coal /
Eastern Associated Coal
Detergent Manufacturing
- Dial Soap
- Brek