Portledge, Devon
Llanerchaeron, Ceredigion (Accredited Museum)
Erddig, Wrexham (Accredited Museum)
Standen House and Garden, West Sussex (Accredited Museum)
Basildon Park, Berkshire (Accredited Museum)
Greenway, Devon (Accredited Museum)
Sissinghurst Castle Garden, Kent (Accredited Museum)
Kedleston Hall, Derbyshire (Accredited Museum)
Mr Straw's House, Nottinghamshire (Accredited Museum)
Cliveden Estate, Buckinghamshire
Ickworth, Suffolk (Accredited Museum)
Cornish Engines, Cornwall
Hill Top, Cumbria (Accredited Museum)
Wallington, Northumberland (Accredited Museum)
