Atkins Environment
BP p.l.c
C.MER INDUSTRIES LTD.
Cambridge Environmental Research Consultants
Casella Group
CBISS Ltd
Defra (the Department for Environment, Food and Rural Affairs)
The Desert Research Institute
Environment Agency
GRIMM Aerosol Technik GmbH & Co. KG
Ingenieurb?ro Norbert Derenda
Johnson Matthey PLC
IUAPPA
Mayor of London - Greater London Authority
NSCA
Netcen - AEA Technology
Thermo Electron Corporation
Volvo Car Corporation
Westlakes Scientific Consulting Ltd