| Cavan | Metal | Araba | |
| Cerebral Effusion | Brutal Death Metal | Bizkaia | |
| Childrain | Groove Metal | Araba | |
| Chotakabra | Hardcore/Metal | Nafarroa | |
| Cobra | Rock/Metal | Bizkaia | |
| Conflict Noise | Death Metal | Bizkaia | |
| Conteiner | Sludge Metal | Bizkaia | |
| Corrosive | Metalcore | Nafarroa | |
| Crazy Keys | Hard Rock | Araba | |
| Crazy World | Hard Rock | Bizkaia | |
| Crucifucked | Crust/Black/Death Metal | Bizkaia | |
| Cult Of Misery | Crust/Death Metal | Bizkaia | |
| Dabelyu | Thrash Metal | Bizkaia | |
| Daemonlord | Black Metal | Gipuzkoa | |
| Dama | Metal/Hardcore | Nafarroa | |
| Damned Ritual | Thrash/Death Metal | Nafarroa | |
| Days Of Abuse | Techno Metal | Bizkaia | |
| Death In Effigy | Death/Black Metal | Araba | |
| Debon | Groove Metal | Gipuzkoa | |
| Deborah Riff | Rock/Metal | Bizkaia | |
| Decline | Black/Death Metal | Bizkaia | |
| Decrepit Artery | Death/Grindcore | Araba | |
| Deimocracy | Groove Metal | Bizkaia | |
| Delenda Est | Alternative Metal | Araba | |
| Delion | Heavy Metal | Araba | |
| Detached At Birth | Beatdown/Metal/Hardcore | Nafarroa | |
| Devil Vow | Heavy Metal | Bizkaia | |
| Diabulus In Musica | Symphonic Metal | Nafarroa | |
| Didar | Melodic Death Metal | Bizkaia | |
| Dinky Dau | Heavy Rock | Araba |
