3M
Abbott
Agfa
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Akzo Nobel
Allied Signal
American Home Products
Amgen
Amoco
Asahi Chemical
ASTA Medica
AstraZeneca
Ausimont
Aventis
BASF
Bayer AG
Baxter
Beiersdorf
Boehringer-Ingelheim
Boehringer-Mannheim
BP
Bristol-Myers Squibb
Calgon
Celanese
Chemie Linz [OMV AG]
Ciba Specialty Chemicals
Clariant
Condea Chemie
Courtaulds
Cytec
Degussa
Dow Chemical
DSM
DuPont
Eastman Chemical
Elf Atochem
Eli Lilly
ExxonMobil
Glaxo Wellcome
Henkel
Hoechst
ICI
Impocolor
Johnson & Johnson
Kemira Oy
Kiesel Bauchemie
Knoll
Merck ( D )
Merck (USA)
Mitsubishi Chemical
Mobil Chemical
Monsanto
Norsk Hydro
Novartis
Novo Nordisk
Pfizer
PPG Industries
Praxair
Procter & Gamble
Roche
Rohm and Haas
Rütgers
Schering
Schering-Plough
Schering Health Care ( UK )
Schwarz Pharma
Shell /Royal Dutch
Shell /US
Sika
SmithKline Beecham
Solvay
Sumitomo Chemical
Unilever
Urania Agrochem
VebaOel
Wacker Chemie
Witco [Crompton]
Xentex
Yukong (Korea)
Zipperling