| Couleur Livres | France | 24 |
| Couleurs et Plumes | France | 3 |
| Counterpoint | France | 23 |
| Coup d'Oeil | Canada | 99 |
| Coups de tête | France | 16 |
| Cours Toujours | France | 10 |
| Courtepaille | France | 1 |
| Courtes et longues | France | 107 |
| Cousu Mouche | Suisse | 45 |
| Coward-McCann | Etats-Unis | 1 |
| Coxigrue | France | 4 |
| Coyote | France | 1 |
| CPE | France | 21 |
| Crackboom! | Canada | 23 |
| Crayon d'Or | France | 2 |
| Crayon Vert | France | 1 |
| CRDP Académie de Créteil | France | 5 |
| CRDP Académie de Lyon | France | 1 |
| CRDP de Basse-Normandie | France | 2 |
| CRDP Languedoc-Roussillon | France | 1 |
| CRDP Montpellier | France | 4 |
| Créa'Tone | | 2 |
| Créalivres - Comptoir du Livre | France | 5 |
| Créapassions | France | 16 |
| Creaphis | France | 12 |
| Création | Belgique | 1 |
| Creation Oneiros Books | France | 2 |
| Créatique | Canada | 50 |
| Creativia | | 8 |
| Créer | France | 11 |
| Crémille | France | 130 |
| Crémille & Famot | France | 14 |
| Crépin-Leblond | France | 1 |
| Crès | France | 5 |
| Crescendo! | Canada | 12 |
| Crescere | Italie | 3 |
| Crimson Fox Publishing | Angleterre | 2 |
| Crimson Romance | | 4 |
| Crin de chimère | France | 31 |
| Crise et Critique | France | 4 |
| CRISP | | 1 |
| Crispation | France | 2 |
| Cristal | France | 6 |
| Cristel | France | 3 |
| Critères | France | 2 |
| Criterion | France | 8 |
| Critic | France | 217 |
| Critiques | France | 14 |
| Croft House | | 2 |
| Croire publications | France | 3 |
| Croisées | France | 7 |
| Croiser le faire | France | 1 |
| Cromwell Stone | France | 1 |
| Crooked Lane | Etats-Unis | 19 |
| Cross Cult | Allemagne | 1 |
| Cross Generation Comics | France | 11 |
| Crossbooks | Espagne | 19 |
| Crossed Genres Publications | Etats-Unis | 2 |
| Crossing Press | | 3 |
| Crown | Etats-Unis | 119 |
| Crunchyroll | France | 255 |
| Crush | France | 12 |
| CrushStar Multimedia | | 2 |
| Crystal Lake Publishing | | 4 |
| Crystal Moon Press | Etats-Unis | 14 |
| CTV | France | 10 |
| Cuisine Actuelle | France | 5 |
| CulturBooks | Allemagne | 1 |
| Culture & Racines | France | 13 |
| Culture commune | | 5 |
| Culture Pop Atomique | France | 1 |
| Culture Suds | France | 1 |
| Cumberland House Publishing | | 1 |
| Cupidus Legendi | | 3 |
| Curiosité | France | 1 |
| Curiosity Quills Press | | 17 |
| Currency | Angleterre | 2 |
| Cursed Morsels Press | Etats-Unis | 1 |
| Custom Publishing France | France | 3 |
| CY | France | 2 |
| Cyel | France | 9 |
| Cygnet Books | | 3 |
| Cylibris | France | 6 |
| Cyngen | France | 4 |
| Cynren Press | | 1 |
| Cyplog | France | 204 |
| Cyr | France | 1 |
| Cyrano | France | 1 |
| Czidor Lore | | 4 |
| D&C | France | 11 |
| d'Antan | France | 13 |
| d'art | | 2 |
| D'art & d'ailleurs | France | 1 |
| D'Art Henri Piazza | | 2 |
| d'art P-2 | Russie | 2 |
| d'Autre part | Suisse | 20 |
| d'Avallon | France | 48 |
| d'en bas | Suisse | 30 |
| d'Est en ouest | | 12 |
| D'eux | Canada | 77 |
