| Name | Types | |
|---|---|---|
| TJ Lagasse | Developer | |
| TJ Lounge | Developer | |
| TJ Yatchum | Developer | |
| TK | Developer | |
| TK Studio | Developer | |
| TK07 | Developer | |
| TKDArts | Developer | |
| TKO Software | Developer | |
| TL-TONIC | Developer | |
| TLAS Studios | Developer | |
| TLS | Developer | |
| TLansdale | Developer | |
| TLee | Developer | |
| TM Games | Publisher | |
| TMF | Developer | |
| TMQ Software | Developer | |
| TMS | Developer | |
| TMS Entertainment | Publisher | |
| TMSIgames | Developer | |
| TMV | Developer | |
| TMW2 | Developer | |
| TNERB | Developer | |
| TNJGames | Developer | |
| TNN | Publisher | |
| TNS | Developer | |
| TNS Co. | Developer | |
| TNT Team | Developer | |
| TNTC-Lab | Developer | |
| TOASTEngineer | Developer | |
| TOITA | Developer | |
| TOKYOTOON | Developer | |
| TOM Productions | DeveloperPublisher | |
| TOMCREATE | DeveloperPublisher | |
| TOMERPG | Developer | |
| TOMY | Publisher | |
| TOQ Games | Developer | |
| TOR WAR | Developer | |
| TORA GROUP | Developer | |
| TORTURE STAR VIDEO | Developer | |
| TOSE | DeveloperPublisher | |
| TOSE Co., Ltd. | Developer | |
| TOTM Studio | DeveloperPublisher | |
| TOXIC33 | Developer | |
| TOXWORKS | Developer | |
| TPBstudios | Developer | |
| TPHRyan | Developer | |
| TPM_Football | Developer | |
| TPZD | Developer | |
| TQ Digital Entertainment | Developer | |
| TQAG | DeveloperPublisher |