Nunnington Hall, North Yorkshire (Accredited Museum)
Peters and Co
Springhill, County Londonderry (Accredited Museum)
Buckland Abbey, Devon (Accredited Museum)
Hill Top, Cumbria (Accredited Museum)
Dunham Massey, Cheshire (Accredited Museum)
Hinton Ampner, Hampshire (Accredited Museum)
Chartwell, Kent (Accredited Museum)
Llanerchaeron, Ceredigion (Accredited Museum)
Penrhyn Castle, Gwynedd (Accredited Museum)
Betjemann's
Scotney Castle, Kent (Accredited Museum)
The Argory, County Armagh (Accredited Museum)
Tatton Park, Cheshire (Accredited Museum)
Standen House and Garden, West Sussex (Accredited Museum)
Gunby Hall Estate, Lincolnshire
Peckover House, Cambridgeshire (Accredited Museum)
Nostell Priory, West Yorkshire (Accredited Museum)
Ickworth, Suffolk (Accredited Museum)
Berrington Hall, Herefordshire (Accredited Museum)
Dunster Castle, Somerset (Accredited Museum)
Ashdown House, Berkshire
Plas Yn Rhiw, Gwynedd (Accredited Museum)
Vyne Estate, Hampshire (Accredited Museum)
Wimpole, Cambridgeshire (Accredited Museum)
W. Roberts
Charlecote Park, Warwickshire (Accredited Museum)
