Maecenas Music

classical

Manners McDade & McCleery Music Ltd

popular, classical

Maria Forte Music Services

popular

Marionet Music

Maxwood Music Ltd

popular

Mcasso Music Production Ltd

popular, classical

Mediatracks Music Library

library

Mel Bay Music Ltd

classical

Memory Lane Music Ltd

popular

Menace Music Ltd

popular

Mere Folk

popular

Meriden Music

Modrana Music Publishers Ltd

classical

Moggie Music Ltd

popular

Moncur Street Music Ltd

popular

MPL Communications Ltd

popular

Mulberry Music Ltd

popular

Multiplay Music Ltd

popular

Music by Design Ltd

popular

Music Copyright Solutions plc (MCS)

popular

Music Exchange (Manchester) Ltd

Music Sales Ltd

popular, classical

Musicalities Ltd

popular

MusT

popular, classical

Mute Song Ltd

popular