Bernd Moosman Bassoon Maker: Based in Germany. Site includes construction methods and contact information.
Fox Products: Based in Indiana, U.S. Site contains information about both currently-manufactured and discontinued products.
Heckel: Located in Wiesbaden, Germany. Site includes product and service information.
Heckel Bassoon, Heckel Contrabassoon, Heckel CREST Bassoon and Heckelphone Serial Numbers: Contains numeric listings often with ownership history and photographs. Also includes other related historic information.
Püchner Woodwind Instruments: Based in Nauheim, Germany. Site includes historical background, news, maintenance instructions, product information, and photographs.
Schreiber and Keilwerth: Located in Germany. Site includes instrument selection, history, and dealer list.