Air Liquide Canada, Inc.
All Major Universities
American Water Works
Baltimore Gas & Electric
Cadbury Beverages
Campovardi (Italy)
Cargil, Inc.
Central Hudson Gas and Electric Corp.
CIBA (Switzerland)
Clinique O.R.L.
Colgate Palmolive
Dow Chemical
Duke Energy
EMDAMED, B.V. (Holland)
Fisher Scientific
Florida Power
Ford Motor Company
General Motors
Hershey Foods
Hilltop Research
House of Prince, Denmark

IDIS, Ltd. (Great Britain)
Kaiser Permanente
Kemcore (Australia)
Kimberly Clark
Knoxville Utilities Board
Kraft Foods
Lawson Mardon Packaging
Louisville Gas & Electric
Mars, B.V. (Great Britain)
Masterfoods, Poland
Missouri Department of Corrections
Monell Chemical Senses Center
National Fuel
National Institutes of Health
Nestle SA
Novartis Pharma AG
Park Davis
Pfizer, Ltd.
Phillip Morris
Phillips Petroleum
Procter & Gamble
Qit-Fer Et Titane (Canada)

Ralston Purina
Riverwood International
Rochester Gas & Electric
Rohm & Haas
San Diego Gas and Electric
Schering Plough
Scott Paper
Seattle Public Utilities
Simi Vineyards
Southern Nuclear
Suburban Water
Suder & Hennessy (Scotland)
Sun Oil
Sundor Brands
Warner Lambert
Wendy’s International
Wisconsin Electric Power
Workman’s Compensation Board of Alberta
Wyeth Laboratories