Accordiola
Belgian manufacturer. Photographs of products. [English/German/Dutch]

Ballone Burini
Piano and chromatic button accordions. Product photographs and specifications. Castelfidardo, Italy. [English/Italian/French]

Ha-vent
Manufacturer of valves for accordions, chromaticas, and harps. [English/German]

Rossetti Accordions
Products and specifications.

Yanghzong Musical Instrument
China based manufacturer of accordions, guitars, violins, and melodicas.