DEVELOPERS
- T.Dogs
- T&E Soft
- Tahoe Software
- Taito
- Taito / Aisystem Tokyo
- Taito Corporation
- Taito / East Point Software
- Takara
- Take 2 Interactive
- Takeru
- Taki
- Takumi
- Takumi Corporation
- Tamsoft
- Tamsoft Corporation
- TamTam
- TamTam / Alpha Unit
- Tamtex
- Taniko
- Tantalus Entertainment
- Tantalus Interactive
- Tao Human
- Tarantula Studios
- Tasuke
- Taxan
- TCC
- TDK Core
- Team 17
- Team .366
- Team Bioteckers
- Team Bughouse
- Team Craze
- Team Daiwa
- Team Infinite
- Team Mental Care
- Team Neo Blood / Arc System Works
- Team Ninja
- Team SOHO
- Team17 Software, Ltd
- Team17 Software, Ltd. / The Code Monkeys
- Tears (Ichikawa Software)
- Tears (Ichikawa Software R&D)
- TeaSet
- Tec Toy
- Techiku
- Techno Soft
- Techno Soleil
- Technopop
- Technos
- Technos Japan
- TechnoSoft
- TecMagik
- Tecmo
- TecnoSoft
- Teeny Weeny Games
- Teichiku
- Teichiku Records
- Telegames
- Telegames, Inc.
- Telenet
- Telenet Japan
- Tell-Tale Production
- Telstar
- Tempest Software
- Tempest Software Ltd
- TEN
- TEN Institute
- Tengen
- Tenki
- Tenky
- Teque Interactive
- Teque Software Development Ltd
- Terraglyph Interactive Studios
- Tetragon
- TGL
- TGL Micro
- TGL (Technical Group Laboratory, Inc.)
- The 3DO Company
- The Bitmap Brothers
- The Code Monkeys
- The Code Monkeys Ltd.
- The Collective, Inc
- The IO Team
- The Kremlin
- The Neverhood
- The Neverhood, Inc
- The Sales Curve
- The Second
- The WheelHause
- Thede Monkeys
- Theyer GFX
- Thin Chen Enterprises
- Thinking Rabbit
- THQ
- Thunder Stone Japan
- Tiburon
- Tiburon Entertaiment
- Tiburon Entertainment
- Tierheit
- Tiertex Design Studios
- Time Point
- Time Warner Interactive
- Titanium Studios
- Titus Software
- Titus Software Corp.
- TLG
- TNN
- To One
- Toaplan
- Toei Animation
- ToeJam & Earl Productions
- Toho
- Tohoku Shinsha
- Toka
- Tokai Engineering
- Tokuma Shoten
- Tokyo Electron
- Tom Create
- Tomcat System
- Tomcat System / Irem Software Engineering
- Tomix Digital
- Tomy
- Tomy Corporation
- Tonkin House
- Tonkin House (Tokyo Shoseki)
- Toolbox Design
- Torus Games
- TOSE
- Tose Software
- Toshiba EMI
- Towachiki
- Toyota Motor Corporaition
- Toys for Bob
- Tradewest
- Étrange Libellules
- Traveller's Tales
- Traveller's Tales / Eurocom Developments Ltd. / Doki Denki
- Treasure
- Trecision S.p.A
- Treco
- Trecsision
- Treyarch
- Tri-Ace
- Triffix
- Trips
- Tsuburaya Prod.
- Tsuji Jimusho
- Tsukuda Ideal
- Tsukuda Original
- Tuna
- Twilight Express
- Twilight Games
- Twilight Zone Software
- Two Tribes
- TwoFiveSix
- Tycoon
- TYO
- TYO / Digital Frontier