Publishers – G
- G2 Entertainment
- Galaxy Music Corporation
- Garden Music
- Genesis Choral Library
- Gently Music
- Gentry Publications
- Gerard & Sarzin
- GIA Publications
- Girolamo Musikverlag
- Glocken Verlag
- Glory Sound
- Gobelin Music
- Golden Apple Productions
- Golden River Music
- Gonzaga
- Goodmusic Publications
- Gramercy Music
- Graphic Arts Books
- Greenway Music Press
- Greg Fishman Jazz Studios
- Griffin Publishing
- Grossman's Guitar Workshop
- Grove Music
- Gründ Editions
- Guitar Heritage
- Guitar Master Class Pub.
- Guitar Sherpa
- Guitar Solo Publications
- Guitar World
- Gumbles Publications
- Gustav Bosse Verlag