| JanTuts | Developer | |
| Jan_rl | Developer | |
| Jana Games Studios | Developer | |
| Jana V. | Developer | |
| JanaChumi | Developer | |
| Janaprasanth | Developer | |
| JandDgames | Developer | |
| Jandre | Developer | |
| JanduSoft | DeveloperPublisher | |
| Jane disembiggen Ditchfield | Developer | |
| Jane Richardson | Developer | |
| Jane Titor | Developer | |
| Jane's Combat Simulations | DeveloperPublisher | |
| Jang Games | Developer | |
| Jangma | Developer | |
| JangoMango | Developer | |
| JangoUni | Developer | |
| Jangosan | Developer | |
| Jani Nykänen | Developer | |
| JaniToad | Developer | |
| Janine | Developer | |
| Janis | DeveloperPublisher | |
| Jank Hambrams | Developer | |
| Jankenteam | Developer | |
| JankyBread | Developer | |
| Jannik Boysen | Developer | |
| JanoGames | Developer | |
| Janos Biro | Developer | |
| Janz4400 | Developer | |
| Jaoel | Developer | |
| JapaSsou | Developer | |
| Japan Art Media | Developer | |
| Japan Art Media (JAM) | Developer | |
| Japan Clary Business | Publisher | |
| Japan Home Video | DeveloperPublisher | |
| Japan Media Programming | Developer | |
| Japan Studio | Developer | |
| Japan System House | Developer | |
| Japan System Supply | DeveloperPublisher | |
| Japan System SupplyJP | Publisher | |
| Japan Vistec | DeveloperPublisher | |
| Japanese Media Programming | Developer | |
| Japanese Softbank | Publisher | |
| JapaneseMEOW | Developer | |
| Japes610 | Developer | |
| Jappa | Developer | |
| Jappa Studios | Developer | |
| Jaqmarti | Developer | |
| Jarbaje | Developer | |
| Jardel Antunes | Developer | |
| Jared Derrett | Developer | |
| Jared Hahn | Developer | |
| Jared Slawski | Developer | |
| Jargonloster | Developer | |
| Jarhead Games | Developer | |
| Jari Karjala | DeveloperPublisher | |
| Jaristotle | Developer | |
| Jarod Pearce | Developer | |
| Jarory | Developer | |
| Jarrett Ang | Developer | |
| Jarrodmclagit | Developer | |
| Jartemio | Developer | |
| Jarwes | Developer | |
| Jarzzapan | Developer | |
| Jas C Brooke | Developer | |
| Jas X | Developer | |
| Jash Games | Developer | |
| Jaskowicz | Developer | |
| Jasmin Patry | Developer | |
| Jasmine Persephone | Developer | |
| Jason | Developer | |
| Jason Accardo | Developer | |
| Jason Aldred | Developer | |
| Jason Austin | Developer | |
| Jason Brashill | Developer | |
| Jason Cowling | Developer | |
| Jason Godbey | Developer | |
| Jason Holland | Developer | |
| Jason L | Developer | |
| Jason Lihou | Developer | |
| Jason M. Carey | Developer | |
| Jason Marciniak | Developer | |
| Jason Newman (Gojirra) | Developer | |
| Jason Oda | DeveloperPublisher | |
| Jason Pickering | Developer | |
| Jason Rohrer | Developer | |
| Jason Skillman | Developer | |
| Jason Truong | Developer | |
| JasonDavey | Developer | |
| JasonMacKeigan | Developer | |
| JasonTheGame | Developer | |
| JasonXXR | Developer | |
| Jasonario | Developer | |
| Jasonblox6 | Developer | |
| Jasonsumm | Developer | |
| JasoonMargoon | Developer | |
| Jasozz | Developer | |
| Jasper van Turnhout | Developer | |
| Jasper's hall of shame | Developer | |
| JasperDev | Developer | |