- Mad At The World
- Megadeth uno
- Metal Church uno
- Metallica
- Mortification
- Motivik / Unorthodox
- Mutant
- My Cat Puddinhead
- M24
- M8 Live At Cornerstone Series ··· (Series)
- Macintosh, Sarah
- Mackenzy, Jovan
- Mad At The World
- Mad Dragzter
- Magdalen / Magdallan
- Major Dudes
- Make Sure
- Malachia
- Malchus
- Malignant Mist
- Man Made Hell
- Mancini, Henry
- Manning, Chris
- Mansfield Howard Kaiser
- Mansfield Turner
- Mansfield, Darrell / Darrell Mansfield Band
- Mantric
- Maranatha-1
- Maranatha-2
- Marax
- Marc Piras Trio
- Marion Brown Quartet
- Mark Of Martyrs
- Marohnic, Chuck
- Martin, Roger Dale
- Martin Simson's Destroyer Of Death
- Martyr-1 uno
- Martyr-2 / Tyran
- Martyrs Shrine / Cybergrind
- Mashiaj
- Masquerade
- Mass
- Massaith
- Massaker uno
- Mastedon
- Master Boot Record
- Mattraw, Harper
- Max Blam Jam
- Mayall, John
- McCann, Les
- McKusick, Hal
- Meadows
- Means
- Mediadhor
- Megadeth uno
- Megilloth
- Meid uno
- Memoriam
- Menchen
- Menchen, Bill
- Mental Destruction-1
- Mental Destruction-2
- Mercy
- Mercy Rain uno
- Mercy Rule-1
- Mercy Rule-2
- Mere
- Mereng
- Messenger-1
- Messenger-2
- Messengers
- Messiah-1
- Messiah-2 uno
- Messiah Experience uno
- Messiah Force uno
- Messiah Prophet / Messiah Prophet Band
- Messianic Cry
- Metal Church uno
- Metalian
- Metalisteria
- Metallica
- Metanoia
- Microspore
- Midnight Orchestra
- Mighty Jeremiahs, The
- Mika, Fred
- Mind Us uno
- Mindrage
- Mind's I
- Mindself
- Mindset7
- Minier
- Mirrors uno
- Miscellaneous ··· (Miscellaneous)
- Miss Angie
- Mission Of One
- Mocking Death uno
- Modest Attraction
- Mohler
- Monotheist
- Moonshine Zombies
- MopeDialer
- Moral Issue
- Morbid Existence obscure
- Morbid Sacrifice
- Morior Invictus
- Morse, Neal
- Mortal
- Mortal Enemy uno
- Mortal Treason
- Mortification
- Moses
- Moshketeers, The / Rapture
- Mosh-Pit Justice
- Mossyhead
- Most High uno
- Mother Mary
- Mother Ship / Mothership
- Mothership uno
- Mothman And The Thunderbirds
- Motivik / Unorthodox
- Motormouth
- Mourning Patterns
- Mouth Of The South
- Mr Gasser & The Weirdos
- Music Tellers
- Musk Ox
- Mutant
- MxPx / Magnified Plaid
- My Cat Puddinhead
- My Epic
- My Little Dog China
- My Place Was Taken
- My Red Hot Nightmare
- My Silent Wake
- Myrrhderers, The
- Mystic
- Mystoric