Group
- US Infinity Warcorus1
- US Tak Association34
- USAopoly351
- USArtQuest, Inc.13
- USC Games1
- USS Anacostia4
- UW Platteville Baraboo Sauk County2
- Uberplay Entertainment12
- Ugly Talks1
- Ukiyo-pop2
- Ulisses North America107
- Ulisses Spiele18
- Ulisses Spiele International1
- Ulisses-Spiele59
- Ultra PRO13
- Ultra PRO Entertainment21
- Ultra Pro Entertainment51
- Ultra Pro International67
- UnBound Games13
- Uncaged Anthology1