Publishers – J
- J. Lingen
- J. Maurer Edition Musicale
- J. Schuberth & Co.
- Jack Spratt Music
- Jackman Music Corp
- Jacko-Musikverlag
- James Pass
- Jan Zwart Uitgeverij
- Jarmula Music
- Jasemusiikki
- Jazz Workshop
- Jazzinotes Publishing
- Jazzwise Publications
- Jean Pauli Musikverlag
- Jeeves Music Limited
- Jenschmedia
- Jeremy Siskind
- Jetelina Musik Verlag
- Jim Dunlop
- Jo Wilhelm Siebert
- Joachim Trekel Musikverlag
- Joel Rothman Publications
- Johannes de Heer
- John Rich Music Press
- John Savage
- John Wiley & Sons
- Jolly Learning
- Jolly Music
- Jonas Lohse Verlag
- Joost Schellingerhout
- Josef Irgmaier
- Josef Jiskra
- Jova-Music
- JPC Schallplatten
- Jubal House Publications
- Jumbo Neue Medien & Verlag
- Jumbo Spiele
- Just Accord Music
- Just Flutes Edition
- Just Isn’t Music
- Just Music
