Erddig, Wrexham (Accredited Museum)
Llanerchaeron, Ceredigion (Accredited Museum)
Greenway, Devon (Accredited Museum)
Castle Drogo, Devon (Accredited Museum)
Penrhyn Castle, Gwynedd (Accredited Museum)
Ormesby Hall, Redcar and Cleveland (Accredited Museum)
Tyntesfield, North Somerset
Coleton Fishacre, Devon (Accredited Museum)
Blickling Hall, Norfolk (Accredited Museum)
Dunham Massey, Cheshire (Accredited Museum)
Wightwick Manor, West Midlands (Accredited Museum)
Speke Hall, Merseyside (Accredited Museum)
Baddesley Clinton, Warwickshire (Accredited Museum)
Rufford Old Hall, Lancashire (Accredited Museum)
Stoneywell Cottage, Leicestershire
Wimpole, Cambridgeshire (Accredited Museum)
Lacock, Wiltshire
Osterley Park and House, London (Accredited Museum)