| Strive4Power | Developer | |
| StrivenStudio | Developer | |
| Strix Studio | Developer | |
| StrixPixels | Developer | |
| Stroboskop | DeveloperPublisher | |
| StrodoGames | Developer | |
| StronkTenk | Developer | |
| Strook | Developer | |
| Stroomkabel | Developer | |
| Struct9 | Developer | |
| Strung Up Starlight | Developer | |
| Strupf | Developer | |
| Stu Maxwell | Developer | |
| Stuart C Ball | Developer | |
| Stuart Foley Games | Developer | |
| Stuart Gregg | Developer | |
| Stuart James Fotheringham | Developer | |
| Stuart Middleton | Developer | |
| Stuart P. Middleton | Developer | |
| Stuart Robertson | Developer | |
| Stuart Ruecroft | Developer | |
| Stuart Smith | Developer | |
| Stuart Whittaker | Developer | |
| StuartKent | Developer | |
| Stubbings | Developer | |
| Stubbs | Developer | |
| Stuck in Attic | DeveloperPublisher | |
| Stuckne1 | Developer | |
| Studica Solutions | Developer | |
| Studio 11508 | Developer | |
| Studio 3 | DeveloperPublisher | |
| Studio 30 | Developer | |
| Studio 33 | Developer | |
| Studio 3DO | DeveloperPublisher | |
| Studio 3PAL | Developer | |
| Studio 694 | Developer | |
| Studio Acadius | Developer | |
| Studio Aesthesia | Developer | |
| Studio Alemni | Developer | |
| Studio Alex | Developer | |
| Studio Altair | Developer | |
| Studio Angel | Developer | |
| Studio Anjin | Developer | |
| Studio Archcraft | Developer | |
| Studio Attic Salt | Developer | |
| Studio Avanto | Developer | |
| Studio B (Stuart Cargill, Russell Comte) | Developer | |
| Studio B-Room | DeveloperPublisher | |
| Studio Backpack | Developer | |
| Studio Black Flag | Developer | |