Marki: U
- U Dimension
- U Power
- UBBINK
- Uberti
- Ubiquiti
- Ubisoft
- UBM
- Uchida
- UDG
- Ufesa
- UGG
- Ugreen
- Uhlsport
- UIG Entertainment
- UK Gear
- Ulefone
- Ulla Popken
- Ulpio
- Ulric De Varens
- Ulrich
- Ulsonix
- Ulster Weavers
- Ultimaker
- Ultimate Direction
- Ultimate Ears
- Ultimate Tactical
- Ultimo
- Ultimode
- Ultra
- ULTRA Bearings
- ULTRA PLUS
- Ultra Pro
- ULTRACELL
- Ultradent
- Ultrafire
- Ultralife
- Ultralink
- ULTRAMENT
- Ultrasone
- Ultrasport
- Ultraviol
- Ultron
- Umbra
- Umbro
- UMIDIGI
- UNA
- Unbekannt
- UNBRANDED
- Uncle Henry
- Under Armour
- Under Twenty
- Undercover
- Underground
- Ungaro
- Unger
- Uni
- UNI T
- UNI TROL
- Unia
- Unibike
- Unicell
- Unico
- Unicol
- UNICORN
- Unicorno
- UNICRAFT
- Uniden
- Uniflam
- Unify
- Unikat
- Unilever
- Unilux
- UNIMAX
- Unimil
- Union
- UNIOR
- Unipak
- Unipap
- Uniphar
- Unipharm
- Unique
- Uniroyal
- Unisa
- UNISON RESEARCH
- Unitec
- United Cutlery
- United Labels
- United nude
- Unitek
- Unitra
- UNITRAILER
- Unitronics
- Universal
- Universal Audio
- Universal Hobbies
- Universal Music
- Universal Nutrition
- UNIVET
- Unold
- Unomedical
- UNOX
- UPONOR
- Uppercut Deluxe
- UPrint
- UPSA
- Urania
- Urban Armor Gear
- Urban Classics
- Urban Decay
- Urban Legend
- Urbanista
- Urgent
- Urgo
- Uriage
- URIMAT
- Urine Off
- Urmet
- Urnex
- Uroda
- Ursapharm
- Ursus
- Urtekram
- US Motor Works
- US Pharmacia
- US Playing Card Company
- US Polo Assn
- USAMS
- USG
- Usher
- USP Zdrowie
- UST
- USTM
- Utal
- Utax
- Utopia
- Uvex
- UYN
- Uzin