| ID | Name | Type |
|---|---|---|
| #13434 | Slogger Software | Z |
| #13435 | Slon | ? |
| #20288 | Slovak Design Museum | Z |
| #20287 | Slovak Game Developers Association | P |
| #16489 | Slow Death Company | Z |
| #13436 | Slowglass | Z |
| #13437 | Small School Software | Z |
| #13438 | Smart Egg Software | Z |
| #13439 | Smash | ? |
| #13440 | Smash Soft | Z |
| #13441 | Smasher | ? |
| #16490 | SmileGames | Z |
| #13442 | Smiling Assassin | Z |
| #17711 | Smith Harrowden Associates | M |
| #13443 | Smiths Crisps | Z |
| #18534 | Smok Wawelski | + |
| #13444 | Smokers | ? |
| #18728 | Smokers Hackers Group | Z |
| #19366 | Snappy Games | P |
| #13445 | Snatcho | - |