| Spartorange | France | 1 |
| SPCK | Angleterre | 2 |
| Speak | France | 94 |
| Spéciale | France | 21 |
| Spectra | Etats-Unis | 87 |
| Spectrum Literary Agency | | 3 |
| Speedernet | France | 1 |
| Spencer Hill Press | Etats-Unis | 38 |
| Spengler | | 1 |
| Sperling & Kupfer | Italie | 23 |
| Sperling Paperback | France | 16 |
| sPfc | | 9 |
| Sphere | Angleterre | 329 |
| Sphères | France | 3 |
| Spicy | France | 6 |
| Spiegel & Grau | Etats-Unis | 20 |
| Spinelle | | 53 |
| Spinifex | Australie | 3 |
| Spinsters Ink | Etats-Unis | 1 |
| Spiramus press | | 1 |
| Spiritualités vivantes | France | 4 |
| Splash | | 34 |
| Splitter | Allemagne | 13 |
| Spootnik | France | 8 |
| Spootnik / Arkantes | France | 1 |
| Sportförlaget | Suède | 2 |
| Sporting Garland Press | France | 2 |
| Spotify Audiobooks | Etats-Unis | 3 |
| Spring | Taïwan | 8 |
| Spring Books | France | 4 |
| Springer | | 6 |
| Springer-Science Business Media, B.V | Allemagne | 0 |
| Square Enix | | 131 |
| Square Fish | France | 114 |
| Square Peg | | 10 |
| ST | France | 53 |
| St Michel | France | 2 |
| St. Benno | Allemagne | 2 |
| St. Martin's Press | Etats-Unis | 694 |
| Stackpole Books | Etats-Unis | 1 |
| Stalker | | 1 |
| Standaard | France | 78 |
| Stanford university press | | 4 |
| Stanké | Canada | 164 |
| Star Comics | Italie | 32 |
| Stardom | France | 4 |
| Stardust | | 46 |
| Starfire | France | 5 |
| Starling Books | Etats-Unis | 13 |
| State University of New York Press | Etats-Unis | 2 |
| Station T | Canada | 11 |
| Stauffenburg | Allemagne | 1 |
| Stealth Press | Etats-Unis | 1 |
| Steamy D Publishing | France | 2 |
| Steaw | France | 1 |
| STÉDITIONS | France | 28 |
| SteeBlackStories | | 2 |
| Steeles Publishing | France | 3 |
| Steerforth Press | | 2 |
| Steidl | | 3 |
| Stein and Day | Etats-Unis | 1 |
| Steinbach sprechende Bücher | Allemagne | 1 |
| Steinkis | France | 208 |
| Stelios Kontaratos | Grèce | 1 |
| Stellamaris | France | 26 |
| Stelliform Press | | 1 |
| Stenhouse | | 3 |
| Stéphane Batigne | | 6 |
| Stéphane Marsan | | 36 |
| Stéphane Million | France | 17 |
| Sterenn | France | 6 |
| Sterling | France | 40 |
| Sterling Juvenile | France | 6 |
| Sternberg Press | Angleterre | 3 |
| Stewart, Tabori and Chang | Etats-Unis | 2 |
| STFM | France | 1 |
| Stock | France | 1718 |
| Stock / Fayard | France | 4 |
| Stoker Aces Production | | 105 |
| StoneHouse Ink | Etats-Unis | 4 |
| Stop Smiling Books | Etats-Unis | 1 |
| Storey | Etats-Unis | 3 |
| StoriaEbooks | | 7 |
| Stories untold | | 1 |
| Storm King Comics | Etats-Unis | 15 |
| Storm Publishing | | 1 |
| Storyador Press | | 1 |
| StoryLab | France | 38 |
| Storyville | France | 1 |
| Strange Chemistry | Angleterre | 18 |
| Strange Violin Editions | Etats-Unis | 1 |
| Street Noise Books | Etats-Unis | 1 |
| Strident Publishing Limited | | 3 |
| Stripes Publishing | Angleterre | 14 |
| Strom | Suisse | 1 |
| Stuart Ng Books | Canada | 1 |
| Stuart Reardon Publishing | | 3 |
| Studio 5 | | 26 |
| Studio 5 | | 10 |
| Studio Acryline | France | 8 |
