Marki: U
- U Power
- Uberti
- Ubiquiti
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- ULTRA Bearings
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- Ultradent
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- Ultrasone
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- Umbra
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- UMIAR
- UMIDIGI
- Unbekannt
- Under Armour
- Under Twenty
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- Underground
- Ungaro
- Unger
- Uni
- Uni 1
- UNI T
- UNI TROL
- Unia
- UNIA GRUDZIĄDZ
- Unicell
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- Unicol
- UNICORN
- Unicorno
- UNICRAFT
- Uniden
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- Unikat
- Unilever
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- UNIMAX
- Unimil
- Union
- UNIOR
- Unipap
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- Unique
- Uniroyal
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- United Cutlery
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- Universal
- Universal Audio
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- Universal Nutrition
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- Uoga Uoga
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- Urmet
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- URODZENI PATRIOCI
- Ursa
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- Ursapharm
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- US Motor Works
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- US Playing Card Company
- US Polo Assn
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- Utal
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- Utopia
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- Uzdrowisko Iwonicz
- Uzin