Stourhead, Wiltshire (Accredited Museum)
Sunnycroft, Shropshire (Accredited Museum)
Knole, Kent (Accredited Museum)
Springhill, County Londonderry (Accredited Museum)
Standen House and Garden, West Sussex (Accredited Museum)
Milners
Tatton Park, Cheshire (Accredited Museum)
The Argory, County Armagh (Accredited Museum)
Pluvius
W. Davis
Townend, Cumbria (Accredited Museum)
Minimax Ltd.
Treasurer's House, North Yorkshire (Accredited Museum)
Uppark House and Garden, West Sussex (Accredited Museum)
Upton House, Warwickshire (Accredited Museum)
Fell Foot Park, Cumbria
Hinton Ampner, Hampshire (Accredited Museum)
Vyne Estate, Hampshire (Accredited Museum)
Hobbs Hart and Co Ltd
Wallington, Northumberland (Accredited Museum)
Merryweather
Westwood Manor, Wiltshire (Accredited Museum)
Wightwick Manor, West Midlands (Accredited Museum)
Llanerchaeron, Ceredigion (Accredited Museum)
Cragside, Northumberland (Accredited Museum)
2 Willow Road, London (Accredited Museum)
Overbeck's House, Devon (Accredited Museum)
Peckover House, Cambridgeshire (Accredited Museum)
Chirk Castle, Wrexham (Accredited Museum)
Julius Sax
Clandon Park, Surrey
Claydon House, Buckinghamshire
Clevedon Court, North Somerset (Accredited Museum)
Cliveden Estate, Buckinghamshire
