- 1 Udo
- 2 Ultramarine
- 3 Ulv
- 4 Uusi Fantasia
- 5 Untamed
- 6 U2
- 7 unknown mortal orchestra
- 8 Union Station
- 9 Us3
- 10 Unheilig
- 11 Ummon
- 12 Underworld
- 13 Unashamed
- 14 UnitedEra
- 15 United Strings of Europe
- 16 Uncle SLow
- 17 Urban Flow
- 18 UGK
- 19 Underoath
- 20 Urbanize
- 21 Und3rsound
- 22 United Nations
- 23 Until I Wake
- 24 Unknown Brain
- 25 UFO
- 26 Unity Pacific
- 27 Utmarken
- 28 Utah Saints
- 29 unwritten law
- 30 Ultra Orange