Piano Manufacturers
Baldwin - (owned by Gibson) including Chickering, Howard, Hamilton and Wurlitzer piano lines
Bechstein - grand, upright and institutional pianos. Bohemia, made by Bechstein
Blüthner - including Haessler, Irmler and Breitmann pianos
Bösendorfer - (owned by Yamaha) standard and conservatory models
Brodmann - grands and uprights
Estonia - grands only (I believe)
Fazioli - grand and concert pianos
Hailun - grands and uprights, concert performance series
Henry F. Miller - grands and uprights, owned by Sherman Clay and made by Pearl River
Kawai - grands and uprights, also Shigeru Kawai
Kayserburg - grands and uprights (Pearl River)
Kimball - grands and uprights (Kimball USA)
Mason & Hamlin - grands and uprights
Palatino - grands and uprights
Pearl River - also Ritmüller and Kayserburg pianos
Petrof - grands and uprights
Pleyel - grands and uprights in a variety of styles (in French only it seems)
Samick - including Kohler & Campbell, Pramberger, Wm. Knabe and Sohmer & Co pianos
Sauter - grands and uprights
Schimmel - grands and uprights
Seiler - grands and uprights
Steinway & Sons - including Boston and Essex pianos
Story & Clark - owned by QRS Musics
Walter - grands and uprights
Weber - grands and uprights (made by Young Chang)
Yamaha - including Cable-Nelson and Disklavier player pianos
Young Chang - including platinum, professional artist and Bergman pianos