BASF
Bayer CropScience
Bayer Garden
Belchim Crop Protection
Certis Europe BV
Chemtura
Doff Portland
Dow
DuPont UK
Fine Agrochemicals
Headland
Interfarm (UK) Ltd
Makhteshim Agan
Monsanto
Nomix Enviro
Nufarm
Syngenta
The Scotts Company (UK) Ltd
United Phosphorus
Vitax
Westland Horticulture
William-Sinclair Horticulture