| Bibliothèque interdite | France | 120 |
| Bibliothèque Medem | France | 1 |
| Bibliothèque mondiale | France | 12 |
| Bibliothèque nationale de France (BnF) | France | 88 |
| Bibliothèque nationale et universitaire de Strasbourg | France | 2 |
| Bibliothèque numérique romande | | 56 |
| Bibliothèque publique d'information | France | 6 |
| Bibliothèque Québécoise | Canada | 93 |
| Bibliothèque Russe et Slave | | 8 |
| Biblis | France | 24 |
| Biblos | Japon | 31 |
| Bien vivre en Val Gelon / Gap | France | 2 |
| Big Comic Superior | Japon | 16 |
| Big Hit IP | Corée du Sud | 5 |
| Bigpisi | Corée du Sud | 1 |
| Bijoux de Famille | | 7 |
| Bilboquet | France | 117 |
| Bild am Sonntag | Allemagne | 2 |
| Bild und Heimat | Allemagne | 1 |
| Bilibok | France | 1 |
| Billboard Books | France | 4 |
| Billet-Doux Books | | 2 |
| Bindery Books | Etats-Unis | 1 |
| Binge Audio | France | 18 |
| Bio | | 2 |
| Biographies historiques | France | 5 |
| Biotope | France | 5 |
| Biovie | | 1 |
| Birkhäuser | | 1 |
| Birlinn | Ecosse | 6 |
| Biro | France | 3 |
| Bis publishers | Pays-Bas | 3 |
| Biscoto | France | 28 |
| Bison Books | France | 7 |
| Biteback Publishing | Angleterre | 2 |
| Bitmap Books | Angleterre | 1 |
| Bitter Lemon press | Angleterre | 5 |
| BJZ & Cie | France | 2 |
| BK France | France | 3 |
| Black and White | France | 3 |
| Black And White Publishing | France | 31 |
| Black Balloon | | 3 |
| Black Book | France | 26 |
| Black Box | France | 203 |
| Black Cat | France | 23 |
| Black Cat Cideb | Italie | 4 |
| Black Coat Press | France | 17 |
| Black Dog & Leventhal | France | 14 |
| Black inc | | 5 |
| Black Ink | France | 696 |
| Black Irish Entertainment | | 2 |
| Black Library | Angleterre | 207 |
| Black Library France | France | 216 |
| Black Mask | France | 24 |
| Black Owl Books | Australie | 10 |
| Black Queen | | 22 |
| Black Rabbit | France | 10 |
| Black River | France | 32 |
| Black Rose Writing | | 3 |
| Black Sparrow Press | Etats-Unis | 1 |
| Black Swan | France | 168 |
| Black Thron | Angleterre | 1 |
| Black Thunder Press | | 1 |
| Black-Ebook | France | 1 |
| Black-out | France | 8 |
| Black-Star | | 3 |
| Blackfriars | | 3 |
| Blackie Books | Espagne | 1 |
| Blacklephant | | 17 |
| Blackstone Audio | Etats-Unis | 38 |
| Blackstone Publishing | Etats-Unis | 35 |
| Blacksword Books | Etats-Unis | 4 |
| Blackthorn Books | Etats-Unis | 31 |
| Blackwell's | Angleterre | 3 |
| Blake et Mortimer | France | 77 |
| Blanche | France | 37 |
| Blanco | France | 2 |
| Blanvalet | Allemagne | 57 |
| Blast | France | 30 |
| Bleeding Ink Publishing | | 4 |
| Blessing | Allemagne | 1 |
| Bleu autour | France | 24 |
| Bleu d'Encre | Belgique | 1 |
| Bleu de Chine | France | 25 |
| Bleu et Jaune | | 15 |
| Bleu Pétrole | France | 2 |
| Bleu47 | France | 3 |
| BLF | France | 30 |
| Blind Eye Books | Etats-Unis | 3 |
| Blind Symphonia | France | 4 |
| Blink | | 17 |
| Bliss | France | 132 |
| Blizzard Entertainment | Etats-Unis | 1 |
| Blogger de Loire | | 2 |
| Bloodaxe Books | Angleterre | 11 |
| Bloodhound Books | Angleterre | 3 |
| Bloom Books | Etats-Unis | 99 |
| Bloomoon | Allemagne | 3 |
| Bloomsbury | Angleterre | 1138 |
| Bloud & Gay | France | 1 |
