Brands – B
- B-Bird
- B-Bright
- B. K. Klassik
- Balvi Gifts
- Bam
- Bärenreiter
- Barnes and Mullins
- Barnhouse Company
- BB Reeds & Music
- Bellacura
- Bend A Light
- Bernardel
- Bespeco
- BG
- BJ Blues
- Blackstar
- Blanc Kunstverlag
- Blossom Hill Cards
- BluGuitar
- Bo-Pep
- Bobcat
- Bon Musica
- Bonacchi
- Bonade
- Bonmusica
- Boomwhackers
- Boosey & Hawkes
- Bosworth
- Boveda
- Bow'n'uS
- Breedlove
- Breitkopf & Härtel
- BriLee Music
- Broekmans van Poppel
- Bromo Music
- Brunswick
- Buffet Crampon
- Bumblebee
