| UP906003 | Developer | |
| UPL | DeveloperPublisher | |
| UPL Co. | Developer | |
| UPL JP | Publisher | |
| UPlay Online | DeveloperPublisher | |
| UQAC2 | Developer | |
| US Billiards | Publisher | |
| US Gold | Publisher | |
| USC Games | Publisher | |
| USC Interactive Media Division | DeveloperPublisher | |
| USPGameDev | Developer | |
| USW Games | Developer | |
| UStriteTeam | Developer | |
| UTV Ignition Entertainment | DeveloperPublisher | |
| UTV Ignition Games | Publisher | |
| UU Soft | Developer | |
| UVST | Developer | |
| U_Games_Studio | Developer | |
| Uacari | Developer | |
| Uani Studio | DeveloperPublisher | |
| Ubarefeet | Developer | |
| Uber Entertainment | Developer | |
| UberPie | Developer | |
| UberWiggett | Developer | |
| Ubi Pictures | Developer | |
| Ubi Soft | DeveloperPublisher | |
| Ubi Soft (WW) | Publisher | |
| Ubi Soft Casablanca | Developer | |
| Ubi Soft EU | Publisher | |
| Ubi Soft Milan | Developer | |
| Ubi Soft Montpellier | Developer | |
| Ubi Soft Montreal | Developer | |
| Ubi Soft NA/EU | Publisher | |
| Ubi Soft Paris | Developer | |
| Ubi Soft Romania | Developer | |
| Ubi SoftNA/PAL | Publisher | |
| Ubi SoftPAL | Publisher | |
| Ubi Studios UK | Developer | |
| UbiSoft | Publisher | |
| UbicompBro | Developer | |
| Ubihard | Developer | |
| Ubiquitous Entertainment | Publisher | |
| Ubiquitous Mayonnaise | Developer | |
| Ubisoft | DeveloperPublisher | |
| Ubisoft (EU) | Publisher | |
| Ubisoft (NA/EU) | Publisher | |
| Ubisoft (PAL) | Developer | |
| Ubisoft Annecy | Developer | |
| Ubisoft Barcelona | Developer | |
| Ubisoft Bucharest | Developer | |
| Ubisoft Casablanca | Developer | |
| Ubisoft Chengdu | Developer | |
| Ubisoft EU | Publisher | |
| Ubisoft Entertainment | Publisher | |
| Ubisoft GmbH | Publisher | |
| Ubisoft Halifax | Developer | |
| Ubisoft Kyiv | Developer | |
| Ubisoft Milan | Developer | |
| Ubisoft Montpellier | Developer | |
| Ubisoft Montreal | Developer | |
| Ubisoft Munbai | Developer | |
| Ubisoft NA | Publisher | |
| Ubisoft NA/EU | Publisher | |
| Ubisoft Nagoya | Developer | |
| Ubisoft Osaka | Developer | |
| Ubisoft Paris | Developer | |
| Ubisoft Pune | Developer | |
| Ubisoft Quebec | Developer | |
| Ubisoft Reflections | Developer | |
| Ubisoft Romania | Developer | |
| Ubisoft SRL | Developer | |
| Ubisoft San Francisco | Developer | |
| Ubisoft Shanghai | Developer | |
| Ubisoft Singapore | Developer | |
| Ubisoft Sofia | Developer | |
| Ubisoft Toronto | Developer | |
| Ubisoft Vancouver | Developer | |
| UbisoftAU | Publisher | |
| UbisoftDE,FR | Publisher | |
| UbisoftEU | Publisher | |
| UbisoftEU,NA | Publisher | |
| UbisoftJP | Publisher | |
| UbisoftNA | Publisher | |
| UbisoftNA,PAL | Publisher | |
| UbisoftPAL | Publisher | |
| UbisoftUKNobilus FranceFR | Publisher | |
| UdragaCorp | Developer | |
| Udyr | Developer | |
| Ufo Crash Games | Developer | |
| Ugh1849 | Developer | |
| Ugly Beard Games | DeveloperPublisher | |
| Ugly Duckling Games | Developer | |
| Ugly Industries Holdings | Developer | |
| Ugly Pixels | Developer | |
| Uk_resistant | Developer | |
| UkaChaka | Developer | |
| Ukiwuki | Developer | |
| Ukiyo Publishing | DeveloperPublisher | |
| Ukiyotei | Developer | |
| UkuNano | Developer | |