Wimpole, Cambridgeshire (Accredited Museum)
Llanerchaeron, Ceredigion (Accredited Museum)
Erddig, Wrexham (Accredited Museum)
Basildon Park, Berkshire (Accredited Museum)
Greenway, Devon (Accredited Museum)
Mr Straw's House, Nottinghamshire (Accredited Museum)
Townend, Cumbria (Accredited Museum)
Clevedon Court, North Somerset (Accredited Museum)
Lindisfarne Castle, Northumberland (Accredited Museum)
Wallington, Northumberland (Accredited Museum)
Arlington Court, Devon (Accredited Museum)
Kingston Lacy Estate, Dorset (Accredited Museum)
Belton House, Lincolnshire (Accredited Museum)
Cragside, Northumberland (Accredited Museum)
Canons Ashby, Northamptonshire (Accredited Museum)
Castle Ward, County Down (Accredited Museum)
Penrhyn Castle, Gwynedd (Accredited Museum)
Scotney Castle, Kent (Accredited Museum)