Llanerchaeron, Ceredigion
Greenway, Devon
Tyntesfield, North Somerset
Kingston Lacy Estate, Dorset
Ormesby Hall, Redcar and Cleveland
Calke Abbey, Derbyshire
Standen House and Garden, West Sussex
Mysto Gem Spraying Outfit
Beningbrough Hall, North Yorkshire
Nymans Estate, West Sussex
Dunham Massey, Cheshire
Quarry Bank, Cheshire
Coleton Fishacre, Devon
Wimpole, Cambridgeshire
Marvel
Eclipse Sprayer Co Ltd
Lanhydrock, Cornwall
Killerton, Devon
F.E. Myers and Bro.
Ardress House, County Armagh
Lance
Edwinson-Noblox
Crom Estate, County Fermanagh
ICI
Hozelock
2 Willow Road, London
Atlas
Castle Ward, County Down
Bourne Mill, Essex
Velfin
Sunnycroft, Shropshire
Blickling Hall, Norfolk
The Workhouse, Southwell, Nottinghamshire
Burroughs Wellcome and Company
