Llanerchaeron, Ceredigion (Accredited Museum)
Erddig, Wrexham (Accredited Museum)
Mount Stewart, County Down (Accredited Museum)
Shaw's Corner, Hertfordshire (Accredited Museum)
Tyntesfield, North Somerset
C. W.
Kingston Lacy Estate, Dorset (Accredited Museum)
Charles Edwards
Felbrigg, Norfolk (Accredited Museum)
Ormesby Hall, Redcar and Cleveland (Accredited Museum)
Coleton Fishacre, Devon (Accredited Museum)
Snowshill Manor and Garden, Gloucestershire (Accredited Museum)
Wightwick Manor, West Midlands (Accredited Museum)
Rufford Old Hall, Lancashire (Accredited Museum)
Greyfriars, Worcestershire (Accredited Museum)
Greys Court, Oxfordshire (Accredited Museum)
Portledge, Devon
Packwood House, Warwickshire (Accredited Museum)