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.
- http://musicroomworkshop.co.uk

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.
- http://www.claviantica.com

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.
- http://www.polettipiano.com

Paul Y Irvin Instrument Maker
- Early Keyboard Instruments and professional services.
- http://www.pyirvin.com

Vogel-Scheer
- German maker of a range of instruments. Tips on voicing bird quill, rose-making and re-stringing.
- http://www.vogel-scheer.de/

Klinkhamer & Partners, Harpsichord and Fortepianomakers and Restorers
- Shows the Harpsichords currently made. Restoration report of an early Clementi Fortepiano.
- http://www.claveklinkhamer.com

Jan Van den Hemel - Stringinstruments & Piano Fortes
- Builds historical string instruments and piano fortes. Restores historical instruments. Articles on history of the piano.
- http://www.pianoforte-vdh.com

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.
- http://www.tony-chinnery.com