- U&I
- U&I Entertainment
- UBI Soft
- ubik
- Ubiquiti Networks
- Ubisoft
- Ubisoft (UBITP)
- UBISOFT EMEA
- Ubisoft entertainment
- Ubisoft Spain
- Ubisoft UBITP
- Ubisoft-AT
- Ubtech
- UFESA
- UGC
- UGEARS
- UGREEN
- UI
- UI Entertainment
- UIEG
- UIG
- Uig (Hoanzl)
- UIG Entertainment
- UIG Entertainment GmbH
- UIG GmbH
- Uk Ltd Nintendo
- Ulefone
- Ulmer
- Ultenic
- Ultimate
- Ultimate Ears
- Ultimate Guard
- ULTIZER
- Ulysse Lubin
- Ulysse Thevenon
- Umi Sleepy-C
- Umidigi
- Umsm
- Unbekannt
- Under Control
- UNELVENT
- Union
- unique eyes
- United Independent Entertainment
- United Labels
- United Soft Media
- United Soft Media Verlag
- United Soft Media Verlag GmbH
- United Software
- Univega
- Universal
- UNIVERSAL CLASSIQUE
- Universal Interactive
- Universal Studio Canal Video
- Universal Transmission
- Université De Paix (Namur Belgique)
- University Games
- Unknown
- Unknwon
- UNO
- Unold
- UNYKAch
- Upper Deck
- UPPRINT
- Urban Arrow
- URBAN COMICS
- URBAN FACT
- Urban Factory
- Urban Glide
- URBANBIKER
- Urbanglide
- Urbanista
- URBANRIDE
- Ursula K. Le Guin
- Uru-Chan
- USAopoly
- Usborne
- Usm
- Uvre Collective
- Uwant
