- macabro
- Machines in Transit
- Made of Wood
- Magic Carpet
- Magnatune Compilation
- Magnatune Remixed
- MAKO
- Mandrake Root
- Maneli Jamal
- Mantic
- Manuel Ochoa
- Marcos H Bolanos
- Margaret Maria Tobolowska
- Marginal Prophets
- Mark Cook
- Mark Preston
- Mark Southeron
- Marker Beacon
- Marko Nouwens
- Maryse Carlin
- Massimo DeAngelis
- Matsuishi Takashi Fritz
- Matt Rusin
- Matt van den Heuvel
- Matthew E Sargent
- Mauricio Buraglia
- Mediva
- Memories of Tomorrow
- Mercy Machine
- Merry Ellen Kirk
- Mexeena
- Michael Kastrup
- Michael Lovatt
- Michael Murphy
- Michael Tiernan
- Michael Travisano
- Michelle Bellerose
- Middle-Earth Ensemble
- Midway Still
- Mijo
- Mikal Evans
- Mike Goudreau Jazz Band
- Mike McGuill
- Mike Wall
- Minstrel Spirit
- Misericordia
- Modinski
- Mogilalia
- Moh Alileche
- Mojo Radio
- Mokhov
- Monoide
- Monom
- Monte Casino
- Mountain Mirrors
- Mountain Sounds
- mr Epic
- Mr Gelatine
- MRDC
- Mundi
- Music for a Winter's Eve
- Music Inside
- Music of the Spheres
- Musica Franca
- Musica Pacifica
- Musical Mandalas
- Mutandina
- My Equinox Divine
- My Woshin Mashin
- Myles Cochran
- Mystified