Labels – M
Labels: MA Music - Minabel
- MA Music
- Madison Gate Records
- Maestric music
- Magdalen
- Magpie Records
- Maguelone
- Magyar Kultura Kiado
- Major Classics
- Malachite
- Malibran
- Mangora Classical
- Manhattan Records
- Manitoba Chamber Orchestra
- Manners McDade
- Map Classics
- Map Golden Jazz
- Marathon Artists
- Marc Aurel
- MarchVivo
- Marco Polo
- Marcophon
- Marianne Melodie
- Mariinsky
- Marília Vargas
- Mark Records
- Marquis
- Marsyas
- Marvelous Hornets
- Massimiliano Greco
- Masterclass
- Masterclass Media Foundation
- Masters Brass Nagoya
- Masterworks
- Masterworks Broadway
- Matangi Quartet
- Matchless Recordings
- Materia Collective
- Material
- Mats Bergstrom Musik
- Mawson and Wareham Music
- Maya Recordings
- Maybe Music
- Mclassics
- MDG
- MDR KLASSIK
- Medici Arts
- Medici Classics
- Megadisc
- Melba Recordings
- Melbourne Symphony Orchestra
- Melism
- Mellos Records
- Melodiya
- Melody Maker
- Membran
- Memoria
- Memorial University
- Memory Recordings
- Mengelberg Society
- Menuetto Classics
- Mercury
- Mercury Living Presence
- Mere Records
- Meridian
- Metier
- Metronome
- Metropolis Group
- Metropolis Music
- Metropolitan Opera
- Metropolitan Symphony Orchestra of Athens
- Meyer Media
- MG Music
- Michael Nyman Records
- MicroFest Records
- Micropascal
- Mignarda
- mikpro LLC
- Milan
- Milken Archive Digital
- Minabel
Labels: MinMax - Myto
- MinMax
- Minuet
- Mirare
- Mirasound
- Mistral Music AB
- MMB
- MMG
- MN Records
- Mode
- Modern Harmonic
- Modern Recordings
- Moderna Records
- Modesty Music
- Monitor Records
- Montaigne
- Montevideo Music Group
- Monthabor Music
- Moochin About
- Morrison Music Trust
- Moscow State Conservatory
- Motéma
- Motette
- Move Records
- Movieplay
- Movimento Classical
- Mozartiana Classics
- MPR
- MPS Records
- MSO Classics
- MSR Classics
- MTG Music
- MTJ
- Multimusical
- Multitone
- Münchner Philharmoniker
- Musakonttori
- Music & Arts
- Music & Media
- Music Box Records
- Music Brokers
- Music in Israel
- Music Square
- Music With No Expiration
- Musica Ficta
- Musica Omnia
- Musica Rediviva
- Musica Sacra Edition
- Musica Sveciae
- Musical Concepts
- Musical Heritage Society (MHS)
- Musicaphon
- Musicas
- MusicaViva
- Musicblast.id
- Musicians Showcase
- MusicMasters
- Musicube
- Musiepoca
- Musik Latar Indonesia
- Musik Museum
- MusiKaleido
- Musique en Wallonie
- Musiques à la Chabotterie
- Musiques Suisses
- muso
- Mute
- MV Cremona
- MVE
- Myricae Classics
- Myrios
- Myto
