Group
- Trusty Lamp Games1
- Tuesday Knight Games4
- Twilight Creations, Inc. 33
- Twin Cities Gamers9
- Twisted Fate Productions1
- Twogether Studios24
- UH.Publishing Inc.10
- US Infinity Warcors18
- Ugly Talks1
- Ulisses Spiele18
- Under The Mushroom8
- Under the Mushroom7
- UnderDiscussion1
- Union Martial Arts21
- Upper Deck225
- Urban Myths7
- V3G8
- VR-SOFT2
- VR-Soft6
- Vaeldiast Games3