Publisher A-Z
- Backbeat Books
- Balquhidder Music
- Balvi Gifts
- Band Music Press
- Band Press
- BandLab
- Bandleader Publication
- BandQuest
- Banks Music Publications
- Barbershop Harmony Society
- Bardic Edition Music Publishers
- Bärenreiter-Praha
- Bärenreiter-Verlag
- Barnhouse
- Bartok Records and Publications
- Bartsch und Haeseler Musikverlag
- Bas en Viola productions
- Bassline Publishing
- Baton Music
- Batterie Music
- Bausch
- BBC Publications
- BBNC Uitgevers
- BCI Media
- BCK
- BCM International
- Berben S.R.L.
- Beriato Music Publishing
- Beriato Music Recordings
- Berklee Press Publications
- Bernaerts Music
- Bernd Classen Music
- Betz Verlag
- BG
- Bill Holab Music
- Bill Holcombe's Musicians Publications
- Blackfeather Studio
- Blackstar
- Bläser Schulen Verlag
- Blechbläsersortiment Köbl
- BlitzBooks Publications
- Bloom School of Jazz Publishing
- Bloomsbury Publishing
- Blue Book Publications
- Blue Crescent Music
- Blue Key Productions
- Blue Music Publishing
- BMG
- Bobcat Books
- Boccaccini e Spada
- Boeijenga Muziekhandel
- Boekencentrum
- Bogner Records
- Böhm und Sohn
- Bohne und Schulz Musikverlage
- Bongiovanni
- Bookmakers International
- Boombox Holland
- Boosey and Hawkes
- Boosey and Hawkes - Hal Leonard
- Boss
- Boston Music Company
- Boston Press
- Bosworth
- Bosworth Chor Edition
- Bosworth Edition
- Bote und Bock
- Bourne Music Publishing
- Bradson Press
- Brass Wind Publications
- Bravo Music
- Braydeston Press
- Breitkopf und Härtel
- Brentwood-Benson
- Bridge Music Publications
- BriLee Music
- Broadbent and Dunn
- Broekmans en Van Poppel
- Bronsheim Music
- Brookfield Press
- Broude Brothers Limited
- Browntrout
- Brunswick
- Bucks limited
- Bullfinch Press
- Bumblebee
- Bund Verlag
- BVT Music