Bluthner
Knightshayes Court, Devon (Accredited Museum)
Bechstein
Mount Stewart, County Down (Accredited Museum)
Steinway
Polesden Lacey, Surrey (Accredited Museum)
Sutton House, London (Accredited Museum)
Collard and Collard
Arlington Court, Devon (Accredited Museum)
Penrhyn Castle, Gwynedd (Accredited Museum)
Gunby Hall Estate, Lincolnshire
Beningbrough Hall, North Yorkshire (Accredited Museum)
Dunham Massey, Cheshire (Accredited Museum)
Coleton Fishacre, Devon (Accredited Museum)
Broadwood
Hanbury Hall, Worcestershire (Accredited Museum)
Dunster Castle, Somerset (Accredited Museum)
Mottisfont, Hampshire (Accredited Museum)
Biddulph Grange Garden, Staffordshire
Erddig, Wrexham (Accredited Museum)
Steinway and Sons
Lanhydrock, Cornwall (Accredited Museum)
Killerton, Devon (Accredited Museum)
John Broadwood and Sons
Wallington, Northumberland (Accredited Museum)
H. Bord
C. Bechstein
Castle Drogo, Devon (Accredited Museum)
Dorneywood House and Gardens, Buckinghamshire
John Broadwood (1732-1812)
Knake Bros.
A La Ronde, Devon (Accredited Museum)
Powis Castle and Garden, Powys (Accredited Museum)
Coughton Court, Warwickshire
Wightwick Manor, West Midlands (Accredited Museum)
Nymans Estate, West Sussex (Accredited Museum)
William Stodart and Son
Baddesley Clinton, Warwickshire (Accredited Museum)
workshop of C. Bechstein
Dyffryn House and Gardens, Vale of Glamorgan
Erard
Basildon Park, Berkshire (Accredited Museum)
Berrington Hall, Herefordshire (Accredited Museum)
Vyne Estate, Hampshire (Accredited Museum)
Borrowdale, Cumbria
Lyme, Cheshire (Accredited Museum)
Castle Ward, County Down (Accredited Museum)
Chirk Castle, Wrexham (Accredited Museum)
Tatton Park, Cheshire (Accredited Museum)
J and J. Hopkinson
Wordsworth House and Garden, Cumbria (Accredited Museum)
Nostell Priory, West Yorkshire (Accredited Museum)
Calke Abbey, Derbyshire (Accredited Museum)
