| Senate | France | 4 |
| Sens & Tonka | | 10 |
| Sens contraires | | 2 |
| Sens Dessus Dessous | France | 26 |
| Sens Public | | 1 |
| Sensuelles | | 1 |
| Sentience | France | 1 |
| Seoul Cultural | Corée du Sud | 27 |
| Sépia | France | 23 |
| September Publishing | | 3 |
| Septembre Éditeur | | 5 |
| Septentrion | France | 146 |
| Septième Choc | France | 4 |
| Séquences | | 1 |
| Seraminda | France | 0 |
| Seramis | | 9 |
| Seren | | 2 |
| Serge Domini | France | 4 |
| Serge Malik I.D. Publishing | France | 1 |
| Serge Safran | France | 58 |
| Serges Media Sarl | France | 2 |
| Serial Box | Etats-Unis | 2 |
| Serna Communications | France | 1 |
| Serpenoise | France | 43 |
| Serpent's Tail | France | 45 |
| Service Culturel de France | France | 5 |
| Seshat | France | 7 |
| Sessa | Argentine | 1 |
| Seth Clarke | Angleterre | 10 |
| Seuil | France | 4925 |
| Seuil / Delcourt | | 15 |
| Seven | France | 4 |
| Seven Seas Entertainment | Etats-Unis | 362 |
| Seven Stories | Etats-Unis | 12 |
| SevenOaks | France | 1 |
| Seventh Sky | | 1 |
| Severedpress | Angleterre | 3 |
| Severn House | France | 6 |
| SFC | France | 3 |
| SG | | 4 |
| Sg Horizons | | 39 |
| Shadow | | 5 |
| Shadow Mountain | France | 14 |
| Shakespeare and Company Paris | | 1 |
| Shakos | | 1 |
| Shambhala | | 18 |
| Shandon Publishing | | 3 |
| Shantarin | Portugal | 1 |
| Sharon Kena | France | 1088 |
| Shattered Glass Publishing | | 8 |
| Shaye Areheart Books | France | 2 |
| Shed publishing | | 5 |
| Shell | France | 7 |
| Sherlock's Diffusion S.A. | | 1 |
| Shiba | Belgique | 40 |
| Shield Maiden Press | Etats-Unis | 1 |
| Shinchosha | Japon | 27 |
| Shingfoo | | 206 |
| Shinkousha | Japon | 1 |
| Shinshokan | Japon | 19 |
| Shivnath Productions | Etats-Unis | 1 |
| Shockdom | Italie | 38 |
| Shodensha | Japon | 3 |
| Shoemaker and Hoard | | 1 |
| Shogakukan | Japon | 269 |
| Short Books | France | 7 |
| ShortBox | | 2 |
| shortÉdition | France | 3 |
| Shoubunkan | Japon | 2 |
| ShuCream | Japon | 2 |
| Shueisha | Japon | 486 |
| Shufu to Seikatsu Sha | Japon | 1 |
| Sidestone Press | Pays-Bas | 1 |
| Sidgwick & Jackson | | 2 |
| Sidh Press | | 94 |
| Siena | France | 1 |
| Sigest | France | 2 |
| Sigilo | Argentine | 2 |
| Siglo XXI | | 4 |
| Signatura | France | 4 |
| Signe de piste | France | 6 |
| Signes et Balises | | 3 |
| Signet | Etats-Unis | 166 |
| Silberburg Verlag | Allemagne | 1 |
| Silenium Créations | France | 3 |
| Silk Thread Publishing | Canada | 5 |
| Sillage | France | 106 |
| Sillex | | 9 |
| Silly Cat | France | 2 |
| Siloë | France | 16 |
| Silvana | | 13 |
| Silver Griffon Associates | | 15 |
| Silver Press | | 5 |
| Silver Wing Press | Etats-Unis | 34 |
| SilverWood Books | Angleterre | 2 |
| Simon & Schuster | Etats-Unis | 1439 |
| Simon Pulse | Etats-Unis | 293 |
| Simon Spotlight Entertainment | France | 4 |
| Simple IT | France | 2 |
| SimpleDad | France | 1 |
