Nostell Priory, West Yorkshire (Accredited Museum)
Nunnington Hall, North Yorkshire (Accredited Museum)
Ightham Mote, Kent (Accredited Museum)
Bateman's, East Sussex (Accredited Museum)
Souter and the Leas, Tyne and Wear (Accredited Museum)
Sterdy
Lanhydrock, Cornwall (Accredited Museum)
Berrington Hall, Herefordshire (Accredited Museum)
Orford Ness, Suffolk
Mount Stewart, County Down (Accredited Museum)
Polesden Lacey, Surrey (Accredited Museum)
Westwood Manor, Wiltshire (Accredited Museum)
Cliveden Estate, Buckinghamshire
Ericsson
Birmingham Back to Backs (Accredited Museum)
Shaw's Corner, Hertfordshire (Accredited Museum)
Wallington, Northumberland (Accredited Museum)
Kingston Lacy Estate, Dorset (Accredited Museum)
Reliance Telephone Co.
Sterlins
Cragside, Northumberland (Accredited Museum)
Greys Court, Oxfordshire (Accredited Museum)
Llanerchaeron, Ceredigion (Accredited Museum)
Scotney Castle, Kent (Accredited Museum)
Monk's House, Rodmell, East Sussex (Accredited Museum)
Ormesby Hall, Redcar and Cleveland (Accredited Museum)
Buscot and Coleshill Estates, Oxfordshire
Anglesey Abbey, Cambridgeshire (Accredited Museum)
British Telecom
Sunnycroft, Shropshire (Accredited Museum)