- Ultra Bra
- Unhindered
- Undercover
- U.S. Christmas
- Under The Flood
- Ulla Meinecke
- Uzi & Ari
- Uriah
- Uncle Walt's Band
- Unburied
- Uphill Racer
- Umberto Petrin
- Uiscedwr
- Unlimited Beat
- Uminski
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- ulu
- Undying Allegiance
- Urubamba
- Ute Freudenberg
- Uninvited
- Union Carbide Productions
- Uncle Dave Macon
- Uniquetunes
- Unit 21
- Unit 4+2
- UHF
- Undying
- Urban Verbs
- Until the End
- Uzeda
- Ulveheim
- Uno
- UCNX
- Usipian
- Uphill Battle
- U.K.N.D
- U.P. Wilson
- Usurp Synapse
- Urlaub in Polen
- Uncle Bonsai
- Urban Cookie Collective
- Umbrtka
- Unfolding
- Unisono
- Ulli Martin
- Uthark
- Underwhelmed
- Ulf Lundell
- Under Languid Lights
- Urusei Yatsura
- Utah Carol
- Under a Dying Sun
- Unit Moebius
- Ugly Colors
- Umod
- Undershower
- Unknown Instructors
- Underground Bass Masters
- Unbound
- UnAmerican
- Ulysses
- Us Two
- Underground Sound of Lisbon
- Uncle Green
- Underdark
- Uxia
- Ultrabeat
- Un Kasa
- Underlapper
- Undo
- Ultrababyfat
- Uncurbed
- UTP Playas
- Uncle Wiggly
- Uxl
- Urdog
- Underground Solution
- Utopie
- Under the Gun
- U-Prague
- Ulali
- Ulele
- Uri Nakayama
- Used Carlotta
- United State of Electronica
- Unashamed
- Unsteady
- Ultimate Fakebook
- Urban Renewal