| Tom Grandjean Maglione | Developer | |
| Tom Guthery IV | Developer | |
| Tom Happ Games | DeveloperPublisher | |
| Tom Hughes | Developer | |
| Tom Kitchen | Developer | |
| Tom Loughry | Developer | |
| Tom McHenry | Developer | |
| Tom Mornini | Developer | |
| Tom Mulgrew | Developer | |
| Tom Newsome | Developer | |
| Tom Oliver | Developer | |
| Tom Prosser | Developer | |
| Tom Quinn | Developer | |
| Tom Rafferty | Developer | |
| Tom Rhodes | Developer | |
| Tom Sandford | Developer | |
| Tom Sennett | Developer | |
| Tom Simpson | Developer | |
| Tom Snyder | Developer | |
| Tom Snyder & Omar Khudari | Developer | |
| Tom Snyder Productions | Developer | |
| Tom Snyder Productions, Inc. | Developer | |
| Tom Stephenson | Developer | |
| Tom Sykes | Developer | |
| Tom Tom | Developer | |
| Tom Wilson | Developer | |
| Tom Wor | Developer | |
| Tom Wright | Developer | |
| Tom-Paul | Developer | |
| Tom01098 | Developer | |
| Tom42_59 | Developer | |
| TomBattey | Developer | |
| TomBuston | Developer | |
| TomCooper3D | Developer | |
| TomDomGames | Developer | |
| TomDoy | Developer | |
| TomFraz | Developer | |
| TomKurcz | Developer | |
| TomMarsland | Developer | |
| TomR | Developer | |
| TomRivers | Developer | |
| TomRobson | Developer | |
| TomSmizzle | Developer | |
| TomVine | Developer | |
| TomVissenkom | Developer | |
| Tom_Clement | Developer | |
| Toma | Developer | |
| Toma Game Studio | DeveloperPublisher | |
| Tomahawk | DeveloperPublisher | |
| Tomahawk Software | Publisher | |
| Tomas Herbertson | Developer | |
| Tomas Sakalauskas | Developer | |
| Tomas Sala | Developer | |
| TomasGames | Developer | |
| TomasTouchdown | Developer | |
| Tomasz Jaworski | Developer | |
| Tomasz Pytel | Developer | |
| Tomate Salat | Developer | |
| TomatoAzpic | Developer | |
| TomatoGames | Developer | |
| TomatoSaladGang | Developer | |
| Tombstoner | Developer | |
| Tomcat System | Developer | |
| Tomerssh | Developer | |
| Tomi | Developer | |
| TomiWr | Developer | |
| Tomlab Games | Developer | |
| Tommo | DeveloperPublisher | |
| Tommy Beaver | Developer | |
| Tommy's Toys | Developer | |
| TommyLingL | Developer | |
| TomoBaster | Developer | |
| Tomorrow Corporation | DeveloperPublisher | |
| Tomorrow the Game | Developer | |
| Tomy | DeveloperPublisher | |
| Tomy (JP) | Publisher | |
| Tomy Company | DeveloperPublisher | |
| Tomy Corporation | DeveloperPublisher | |
| Tomy CorporationJP | Publisher | |
| Tomy JP | Publisher | |
| TomyJP | Publisher | |
| Tomyatemo | Developer | |
| Tomycase | Developer | |
| TomykCZ | Developer | |
| Tomynok | Developer | |
| Tomás Bruckner Kambo | Developer | |
| Tomáš Bencko | Developer | |
| TonEX | Developer | |
| Tong | Publisher | |
| Toni Dorneles | Developer | |
| Toni Svenstrîm | Developer | |
| ToniAbellan | Developer | |
| ToniKong | Developer | |
| Tonimi | Developer | |
| Tonire | Developer | |
| Tonka | Developer | |
| Tonkin House | DeveloperPublisher | |
| Tonkin House JP | Publisher | |
| Tonkin HouseJP | Publisher | |
| Tonkinhouse | Publisher | |
| TontonPizza | Developer | |
| Tony | Developer | |
| Tony Baechler | DeveloperPublisher | |
| Tony Barber | Developer | |
| Tony Chen | Developer | |
| Tony Garcia | Developer | |
| Tony Huggard | Developer | |
| Tony Ilersich | Developer | |
| Tony Jedlovsky and Brian Orr | Developer | |
| Tony LindoRock | Developer | |
| Tony Mack | Developer | |
| Tony Ngo and Benny Ngo | Developer | |
| Tony Porter | Developer | |
| Tony R. Porter | Developer | |
| Tony Rainbird | Developer | |
| Tony Reeves | Developer | |
| Tony Suzuki | Developer | |
| Tony Wang | Developer | |
| Tony Warriner | Developer | |
| TonyNowak | Developer | |
| Tony_B | Developer | |
| Tonynopro | Developer | |
| Tonyz | Developer | |
| Tonz Guy | Developer | |
| Too | Developer | |
| Too DX | DeveloperPublisher | |
| Too Kind Studio | Developer | |
| Too Kyo Games | Developer | |
| Too Much Tomato | Developer | |
| TooManyTeethGames | Developer | |
| Toofu | Developer | |
| Tookipalooki | Developer | |
| Toolbox Design | Developer | |
| Toolstony | Developer | |
| Toombler | Developer | |
| Toomin | Developer | |
| Toone | Developer | |
| Toonhawk | Developer | |
| Toonik Games | Developer | |
| Toonspex | Developer | |
| Toontraxx | Developer | |
| Toorock | Developer | |
| Tooth Games | Developer | |
| ToothandClaw | Developer | |
| Top Cow Productions | Developer | |
| Top Floor Studio Games | Developer | |
| Top Hat Games | Developer | |
| Top Hat Studios | DeveloperPublisher | |
| Top Hat Studios, Inc. | Developer | |
| Top Ten Software | Publisher | |
| TopMAD Software | Publisher | |
| TopWare | DeveloperPublisher | |
| TopWare Interactive | DeveloperPublisher | |
| TopazMacaroon | Developer | |
| TopazPlayz | Developer | |
| TophWells | Developer | |
| Topheavy Studios | Developer | |
| Topia | Publisher | |
| TopinambourMan | Developer | |
| Topis | Publisher | |
| Toplitz Productions | DeveloperPublisher | |
| Topo Soft | DeveloperPublisher | |
| Topologika | DeveloperPublisher | |
| Toppan | DeveloperPublisher | |
| Topsoft | DeveloperPublisher | |
| Topstitch Games | DeveloperPublisher | |
| Torben | Developer | |
| Torched Hill | Developer | |
| Torec Studio | Developer | |
| Toremneon | Developer | |
| Toren K. Smith | Developer | |
| Torfi | Developer | |
| Tori | Developer | |
| Tori Truslow | Developer | |
| ToriDomi | Developer | |
| Toridashime Itoi | Developer | |
| Torii Games | Developer | |
| Toriously | Developer | |
| Torito Games | Developer | |
| Torn Banner Studios | Developer | |
| Torn Page | Developer | |
| TornApart | Developer | |
| Tornado | Developer | |
| Tornado Studios | Developer | |
| Tornado Tower | Developer | |
| Toro Comics | Developer | |
| Toroll | Developer | |
| Torpex Games | Developer | |
| TorpleDook | Developer | |
| Torpor | Developer | |
| Torque Studios | Developer | |
| Torreng Labs | Developer | |
| Tortty | Developer | |
| Tortue | Developer | |
| Tortuga Team | Developer | |
| Torus (Philip Mochan, Ricardo J.M. Pinto, Dominic M.N. Prior, Mark Wighton) | Developer | |
| Torus Games | DeveloperPublisher | |
| Torvelt | Developer | |
| Toryn | Developer | |
| Tose | Developer | |