| Baerenreiter Verlag | |    |
| Banks Music Publication | | |
| Bardi Editore Srl | | |
| Belaieff | See Peters | |
| Berben Edizione Musicali | | |
| Rieter-Biedermann Verlag 1849 | After ca 1900 See Peters | |
| Gerard Billaudot Editeur SA | since 1958 ook Costallat | |
| KammerMusikVerlag Hans-Ruprecht Bitterhof | spec. less known chambermusic | |
| Bibliotheque de France | | |
| Bodleian Library Oxford | | |
| Boehme | See Peters | |
| Editorial de Musica Boileau | | |
| Boosey and Hawkes, Music Publ. | | |
| Bote & Bock | Since 1996 part of Boosey & Hawks | |
| Breitkopf & Hartel | | |
| The British Library | | |
| British Music Collection | | |
| Editio Musica Budapest | | |
| Editio Musica Budapest | | |