Erddig, Wrexham (Accredited Museum)
Llanerchaeron, Ceredigion (Accredited Museum)
Wico
Lucas
Dinton, Wiltshire
Shaw's Corner, Hertfordshire (Accredited Museum)
Wallington, Northumberland (Accredited Museum)
Brockhampton Estate, Herefordshire (Accredited Museum)
Tyntesfield, North Somerset
Buckland Abbey, Devon (Accredited Museum)
Croft Castle, Herefordshire (Accredited Museum)
Kingston Lacy Estate, Dorset (Accredited Museum)
Canons Ashby, Northamptonshire (Accredited Museum)
Saltram, Devon (Accredited Museum)
Ormesby Hall, Redcar and Cleveland (Accredited Museum)
Calke Abbey, Derbyshire (Accredited Museum)
Dunham Massey, Cheshire (Accredited Museum)
Hardwick Hall, Derbyshire (Accredited Museum)
Ightham Mote, Kent (Accredited Museum)
Townend, Cumbria (Accredited Museum)
Coleton Fishacre, Devon (Accredited Museum)
Castle Drogo, Devon (Accredited Museum)
Beningbrough Hall, North Yorkshire (Accredited Museum)
Polesden Lacey, Surrey (Accredited Museum)
Tatton Park, Cheshire (Accredited Museum)
Wightwick Manor, West Midlands (Accredited Museum)