- Biofuels Corporation
- Brotherton Speciality Chemicals
- Carlton Premier Foods Ltd.
- Carbis Filtration Ltd.
- Cerestar
- CIBA Speciality Chemicals
- Crystalware
- Davy Process Technology
- Degussa
- Drax Power Station
- DuPont
- Elementis Chromium
- EVC
- FMC
- Great Lakes
- Hydro Polymers
- James Robinson
- Klinge Chemicals
- Lambson Group
- MEL Ltd.
- Merc Sharp & Dohme Ltd.
- Micro Bio
- Nipa Laboratories
- Novartis
- Ntron Europe
- Oxford Assymetry
- PERA Innovation
- RHM Ingredients
- Rhodia Pharma
- Rhone Poulenc
- Robinson Brothers
- Seabrook Crisps
- Seal Sands Chemicals
- Tioxide
- Transgenomic
- William Blythe
