Acorn Bank, Cumbria
Uppark House and Garden, West Sussex (Accredited Museum)
Tyntesfield, North Somerset
Wightwick Manor, West Midlands (Accredited Museum)
Erddig, Wrexham (Accredited Museum)
Powis Castle and Garden, Powys (Accredited Museum)
Dunster Castle, Somerset (Accredited Museum)
Charlecote Park, Warwickshire (Accredited Museum)
Canons Ashby, Northamptonshire (Accredited Museum)
Saltram, Devon (Accredited Museum)
Stourhead, Wiltshire (Accredited Museum)
Greenway, Devon (Accredited Museum)
Rowland Ward Ltd. (fl.1867-1912)
Grasmere, Cumbria
Kedleston Hall, Derbyshire (Accredited Museum)
probably James Gardner Jnr. of London (fl.19th C-1917)
Lanhydrock, Cornwall (Accredited Museum)
Hill Top, Cumbria (Accredited Museum)
Shugborough Estate, Staffordshire
Calke Abbey, Derbyshire (Accredited Museum)
McCulloch and Son (c.1829-1910)
W. A. Macleay & Son
Cyril Hobbins
Wordsworth House and Garden, Cumbria (Accredited Museum)
