- Reinforcer (Heavy Metal-Germany)
- Riffkiller (Thrash Heavy-Malaysia)
- Riffburn (Thrash Metal-Tunisia)
- Rifftera (Melodic Death-Finland)
- Reformers (Metalcore-USA)
- Riffcoven (Stoner Doom-Brazil)
- Rainforce (Hard Rock-Switzerland)
- Risers (Hardcore-USA)
- Rikter (Death Thrash-Mexico)
- Ricter (Power Metal-Mexico)