| TetroniMike | Developer | |
| Tetsuto Someya | Developer | |
| Teun | Developer | |
| TexaSoft | DeveloperPublisher | |
| Texcine | Developer | |
| Texel Raptor | DeveloperPublisher | |
| Textagames | Developer | |
| Textfyre | Developer | |
| Teyon | DeveloperPublisher | |
| Teyssier_Hugo | Developer | |
| Tezemi | Developer | |
| ThEnigmArtist | Developer | |
| Tha | Developer | |
| ThaRemo | Developer | |
| Thaisa | Developer | |
| ThakaInsaan | Developer | |
| Thalamus | Publisher | |
| Thalamus Digital | Publisher | |
| Thalamus Digital Publishing | Developer | |
| Thalamus Digital Publishing Ltd. | Developer | |
| ThalesII | Developer | |
| Thalfis | Developer | |
| Thalion Software | DeveloperPublisher | |
| Thana | Developer | |
| ThanaThan | Developer | |
| Thanaa | Developer | |
| Thane5 | Developer | |
| Thang Phung Dinh | Developer | |
| ThanielPIN | Developer | |
| ThanosRat_YT | Developer | |
| That Brain | Developer | |
| That Fish | Developer | |
| That Game Company | Developer | |
| That Other Fish | Developer | |
| That Tracks | Developer | |
| That's Not A Game LLC | Developer | |
| ThatCoolModderGuy | Developer | |
| ThatGameCompany | Developer | |
| ThatGuyAgainYT | Developer | |
| ThatGuyGilby | Developer | |
| ThatMadProgrammer | Developer | |
| ThatOneUnityDev | Developer | |
| ThatReaperGames | Developer | |
| ThatRumme | Developer | |
| ThatSarcasticType | Developer | |
| ThatStudio | Developer | |
| ThatTomHall | Developer | |
| ThatWannabeCat | Developer | |
| That_Spacedog | Developer | |
| ThatchCastle | Developer | |
| Thatgamecompany | DeveloperPublisher | |
| Thatnewdevgirl | Developer | |
| ThatzNiko | Developer | |
| Thaumaturge Games | Developer | |
| Thavos | Developer | |
| ThayDaderio | Developer | |
| Thayer GFX | Developer | |
| Thayle L | Developer | |
| Thayson Coutinho | Developer | |
| The 'A Lizard's Tale' Team | Developer | |
| The 3DO Company | DeveloperPublisher | |
| The 3DO CompanyNA | Publisher | |
| The 8th Day | Developer | |
| The A-Team | Developer | |
| The Abstract Concept of Cheese | Developer | |
| The Adventure Company | DeveloperPublisher | |
| The Adventure Company Coladia Games | Publisher | |
| The Afterteam | Developer | |
| The Aidency | Developer | |
| The Alien Sphere Thing | Developer | |
| The Apothecary | Developer | |
| The Arcade Crew | Publisher | |
| The Ardents | Developer | |
| The Argonauts | Developer | |
| The Art Department | Publisher | |
| The Assembly Line | Developer | |
| The Astronauts | DeveloperPublisher | |
| The Balance | Developer | |
| The Bard's Gambit | Developer | |
| The Bearded Ladies | Developer | |
| The Bed Bards | Developer | |
| The Bee's Knees | Developer | |
| The Behemoth | DeveloperPublisher | |
| The Bibites | Developer | |
| The Big Red Software Company Ltd. | Developer | |
| The Binary Family | DeveloperPublisher | |
| The Binary Mill | DeveloperPublisher | |
| The Bitfather | Developer | |
| The Bitmap Brothers | DeveloperPublisher | |
| The BlindEye | Developer | |
| The Blue Hatted | Developer | |
| The Bones Brothers | Developer | |
| The Bonsai Treehouse | Developer | |
| The Boo-ristas | Developer | |
| The Boss Cat | Developer | |
| The Box Office | Publisher | |
| The Box Office, Inc | DeveloperPublisher | |
| The BoyFriend From FNF | Developer | |
| The Broken Horn | Developer | |
| The Brotherhood | Developer | |