Grant O'Brien Early Keyboard Instruments - Information about maker's work as a scholar and researcher specialising in Neapolitan instruments, and as a practical maker and conserver of early keyboard instruments.
The Music Room Workshop - Makers and Restorers of Early Keyboard Instruments. New Harpsichords, Spinets, Clavichords and antique Square Pianos for sale. Restoration service for all early keyboard instruments.
Paul Poletti - Maker and restorer of Historical Keyboard Instruments in Utrecht, Netherlands. Includes a history of the piano and a guide to tuning and temperaments.
Perez Robledo, Leopoldo - Buenos Aires based builder of harpsichords, organs, clavichords and fortepianos. Instruments available and links including an annual concert cycle.
Tony Chinnery Early Keyboard Instruments - Builder of copies of original harpsichords and other keyboard instruments near Florence in Italy. Catalogue of instruments made. MP3 samples.
Vogel-Scheer - German maker of a range of instruments. Tips on voicing bird quill, rose-making and re-stringing.