Garrard and Co Ltd
Coleton Fishacre, Devon (Accredited Museum)
Mount Stewart, County Down (Accredited Museum)
Asprey & Co. Ltd
Lanhydrock, Cornwall (Accredited Museum)
Calke Abbey, Derbyshire (Accredited Museum)
Cragside, Northumberland (Accredited Museum)
Dunham Massey, Cheshire (Accredited Museum)
Greys Court, Oxfordshire (Accredited Museum)
Ormesby Hall, Redcar and Cleveland (Accredited Museum)
Arlington Court, Devon (Accredited Museum)
Polesden Lacey, Surrey (Accredited Museum)
Kingston Lacy Estate, Dorset (Accredited Museum)
Llanerchaeron, Ceredigion (Accredited Museum)
Erddig, Wrexham (Accredited Museum)
Dudmaston, Shropshire (Accredited Museum)
Osterley Park and House, London (Accredited Museum)
Knightshayes Court, Devon (Accredited Museum)
Bateman's, East Sussex (Accredited Museum)
Berrington Hall, Herefordshire (Accredited Museum)
Smallhythe Place, Kent (Accredited Museum)
Chartwell, Kent (Accredited Museum)
Castle Ward, County Down (Accredited Museum)
Belton House, Lincolnshire (Accredited Museum)
Wallington, Northumberland (Accredited Museum)
Uppark House and Garden, West Sussex (Accredited Museum)
Tyntesfield, North Somerset
