U
- Überplay - Board and card games
- UKG Publishing - Role-playing accessories
- Underworld Publishing - Role-playing accessories
- Ungame - Board and card games
- UNI Games - Role-playing games
- University Games - Board and card games
- Unstoppable Productions - Role-playing games
- Upper Deck Entertainment - Collectible card games
- US Game Systems - Board games
- US Playing Card Company - Cards
- Usherwood Publishing - Role-playing accessories
Read more about this topic: List Of Game Manufacturers