Publishers – G
- G & M Brand Publications
- G. Besson Edition
- G. S. Music
- Galaxy Music Corporation
- Garden Music
- Gehrmans Musikforlag
- General Words And Music Co.
- Genesis Choral Library
- Gently Music
- Gentry Publications
- Gerard & Sarzin
- GIA Publications
- Girolamo Musikverlag
- Gitarage Music
- Giulio Einaudi editore
- Gloor Verlag
- Glory Sound
- GMC Choralmusic
- GMF Baltic States
- GMI - Guitar & Music Institute
- Gobelin Music
- Golden Apple Productions
- Golden River Music
- Gonzaga
- Goodmusic Publications
- GPI Publications
- Gramercy Music
- Grand Mesa Music
- Green Man Press
- Greenway Music Press
- Greg Fishman Jazz Studios
- Griffin Publishing
- Grin Publishing
- Grossman's Guitar Workshop
- Grove Music
- Grove Press
- Grumpy Sheep Music
- Gründ Editions
- Guardian Angel Publishing
- Guitar Master Class Pub.
- Guitar Services Workshop
- Guitar Sherpa
- Guitar Solo Publications
- Guitar World
- Gumbles Publications
- Gustav Bosse Verlag
- Gwynedd Confectioners