| Surt Ur | Black Metal | Bizkaia | |
| T TreintayCuatro | Heavy Metal | Araba | |
| Taken | Power Metal | Nafarroa | |
| The Broken Horizon | Metalcore | Nafarroa | |
| The Crypt | Death/Black Metal | Bizkaia | |
| The Descent | Melodic Death Metal | Bizkaia | |
| The Eleventh Plague | Deathcore | Bizkaia | |
| The Faithless | Rock/Metal | Araba | |
| The Flying Scarecrow | Rock/Metal | Bizkaia | |
| The Hammer Killers | Hard Rock | Bizkaia | |
| The Hellectric Devilz | Heavy/Thrash/Punk | Lapurdi | |
| The Name | Metal | Bizkaia | |
| The Rodeo Idiot Engine | Metal/Hardcore | Lapurdi | |
| The Space Octopus | Rock/Metal/Prog | Bizkaia | |
| The Wizards | Hard Rock | Bizkaia | |
| Titan | Heavy/Speed Metal | Lapurdi | |
| Toifelthal | Heavy/Hard Rock | Nafarroa | |
| TOMB | Brutal Death Metal | Bizkaia | |
| Torheit | Death/Groove Metal | Nafarroa Beherea | |
| Tunikah | Black Metal | Gipuzkoa | |
| Unbound | Heavy Metal | Araba | |
| Urbangrind | Death/Grindcore | Bizkaia | |
| Urlik | Crust/Black Metal/Hardcore | Bizkaia | |
| Usuales | Hard Rock | Gipuzkoa | |
| Vakumm | Groove Metal | Nafarroa | |
| Valkyria | Heavy Metal | Bizkaia | |
| Velka | Black Metal | Gipuzkoa | |
| Vhäldemar | Heavy/Power Metal | Bizkaia | |
| Vice Presidentes | Sludge Metal | Araba | |
| Voltium | Thrash Metal | Bizkaia |
