| Name | Types | |
|---|---|---|
| S. Marie | Developer | |
| S. Owaga | Developer | |
| S. Shipway | Developer | |
| S. Woodson | Developer | |
| S.E.G Media Group | Developer | |
| S.L. | Developer | |
| S.P.L Studios | Developer | |
| S.R.R | Developer | |
| S0wbear | Developer | |
| S10Games | Developer | |
| S1L3nCe | Developer | |
| S2 Games | DeveloperPublisher | |
| S4LT-V4LT | Developer | |
| S4Trace | Developer | |
| SA | Publisher | |
| SA Gamedev | Developer | |
| SA Panday | Developer | |
| SAE Athens Games | Developer | |
| SAE Brisbane Games | Developer | |
| SAGiggs | Developer | |
| SALT & PIXEL | Developer | |
| SAME Creative Inc. | Developer | |
| SAMOLIOTIK | Developer | |
| SAMS | Publisher | |
| SAMS[4] | Publisher | |
| SANCHAY | Developer | |
| SANS THE SKELETON HEHE | Developer | |
| SARFEX | Developer | |
| SAS Sakata | Developer | |
| SAT-BOX | DeveloperPublisher | |
| SAVVU Games | Developer | |
| SAY Sí | Developer | |
| SB | Developer | |
| SB Computer Entertainment | Developer | |
| SC FAN STUDIO | Publisher | |
| SC Ovilex Soft | DeveloperPublisher | |
| SCA | Publisher | |
| SCE AustraliaAU | Publisher | |
| SCE KoreaKO | Publisher | |
| SCE Studio Cambridge | Developer | |
| SCE Studios Camden | Developer | |
| SCEA | DeveloperPublisher | |
| SCEANA | Publisher | |
| SCEAUS | Publisher | |
| SCEE | DeveloperPublisher | |
| SCEE London Studio | Developer | |
| SCEEPAL | Publisher | |
| SCEI | DeveloperPublisher | |
| SCEIAU | Publisher | |
| SCEIJP | Publisher | |
| SCEJ | DeveloperPublisher | |
| SCI | Publisher | |
| SCI Entertainment Group | Developer | |
| SCI Games | Developer | |
| SCR Adventures | Publisher | |
| SCREAM CATALOGUE | Developer | |
| SCRNPRNT | Developer | |
| SCS Software | DeveloperPublisher | |
| SCaffa | Developer | |
| SCi | DeveloperPublisher | |
| SCi Entertainment | Publisher | |
| SCi Games | Publisher | |
| SCi Games Ltd. | Publisher | |
| SCi GamesEU | Publisher | |
| SCiEU | Publisher | |
| SCiPAL | Publisher | |
| SDR Project | Publisher | |
| SE Mobile and Online | Publisher | |
| SE Software | Developer | |
| SE77E | Developer | |
| SEAROM | Developer | |
| SEEC | DeveloperPublisher | |
| SEGA | DeveloperPublisher | |
| SEGA Enterprises | Publisher | |
| SEGA Racing Studio | Developer | |
| SEGA-AM3 | Developer | |
| SEGARIO | Developer | |
| SEK | Developer | |
| SEMISOFT | Developer | |
| SENOME | Developer | |
| SEP BOA | Developer | |
| SEQUENTIA SOFT | Developer | |
| SERPA GAMES | Developer | |
| SETA | DeveloperPublisher | |
| SETA (JP/NA) | Publisher | |
| SETA Corporation | DeveloperPublisher | |
| SETA Corporation JP | Publisher | |
| SETA CorporationJP | Publisher | |
| SETA/ | Publisher | |
| SETENTIA Studios | Developer | |
| SETOOK | Developer | |
| SF.net | DeveloperPublisher | |
| SF1252 | Developer | |
| SFB Games | DeveloperPublisher | |
| SFBGames | Developer | |
| SFL Interactive | Developer | |
| SG Diffusion | Developer | |
| SG Morumbi | Developer | |
| SGI | Developer | |
| SHADOW BEAST | Developer |