- Martensmith (Thrash Metal-Turkey)
- Maeth (Experimental Metal-USA)
- Margenta (Heavy Metal-Russia)
- Margento (Heavy Metal-Argentina)
- Morguith (Brutal Death-France)
- Mareridt (Black Metal-Denmark)
- MagiTech (Symphonic Metal-Italy)
- Magec (Sludge Doom-Spain)
- Methwitch (Death Grind-USA)
- Man-Witch (Thrash Metal-USA)