Bluthner
Knightshayes Court, Devon (Accredited Museum)
Broadwood
Ightham Mote, Kent (Accredited Museum)
Collard and Collard
Springhill, County Londonderry (Accredited Museum)
Peters and Co
Bechstein
Mount Stewart, County Down (Accredited Museum)
Steinway
Polesden Lacey, Surrey (Accredited Museum)
Sutton House, London (Accredited Museum)
Hill Top, Cumbria (Accredited Museum)
Kencot Sites, Oxfordshire
Dyrham, Gloucestershire (Accredited Museum)
Arlington Court, Devon (Accredited Museum)
Belton House, Lincolnshire (Accredited Museum)
Cragside, Northumberland (Accredited Museum)
Blüthner
Castle Ward, County Down (Accredited Museum)
Penrhyn Castle, Gwynedd (Accredited Museum)
Scotney Castle, Kent (Accredited Museum)
Wimpole, Cambridgeshire (Accredited Museum)
Calke Abbey, Derbyshire (Accredited Museum)
Gunby Hall Estate, Lincolnshire
Beningbrough Hall, North Yorkshire (Accredited Museum)
Dunham Massey, Cheshire (Accredited Museum)
Wightwick Manor, West Midlands (Accredited Museum)
Coleton Fishacre, Devon (Accredited Museum)
Standen House and Garden, West Sussex (Accredited Museum)
Hanbury Hall, Worcestershire (Accredited Museum)
Dunster Castle, Somerset (Accredited Museum)
Christopher Ganer
Stourhead, Wiltshire (Accredited Museum)
Dyffryn House and Gardens, Vale of Glamorgan
Leith Hill, Surrey
Mottisfont, Hampshire (Accredited Museum)
The Argory, County Armagh (Accredited Museum)
Biddulph Grange Garden, Staffordshire
C. Bechstein
Dudmaston, Shropshire (Accredited Museum)
Erddig, Wrexham (Accredited Museum)
Thomas Haxby
Nunnington Hall, North Yorkshire (Accredited Museum)
Stodart
Steinway and Sons
Lanhydrock, Cornwall (Accredited Museum)
H. Brooks and Co.
Killerton, Devon (Accredited Museum)
Johannes Pohlman
Buckland Abbey, Devon (Accredited Museum)
William Southwell
Croft Castle, Herefordshire (Accredited Museum)
John Broadwood and Sons
Sheringham, Norfolk
