Publishers – H
- H Cube
- H. L. Grahl
- H.T. FitzSimons Company
- HAFABRA Music
- Hage Musikverlag
- Hakim Ludin
- Hal Leonard
- Hamelle
- Hammond Textbooks
- Handelsware
- Handwerks Music
- Hans Pizka
- Hansen House
- Happy Bubble Music
- Happy Fox Books
- Hardie Press
- Harlekijn
- Harmonia
- Harold Flammer Music
- Harper Music Publications
- HarperCollins
- Haus der Musik Wiesbaden
- Hawes Music
- Hebu Musikverlag
- Heinrichshofen
- Heinz Haubrich
- Helbling Musikverlag
- Helm und Baynov
- Henle Verlag
- Hensel Songs Online
- Heritage Music Press
- Heugel
- Heuwekemeijer Muziekuitgeverij
- Hexamusic
- Hey Presto Strings
- Hildegard Publishing Company
- Hilltop Publications
- Himalaya Music
- Hindsley
- Hinrichsen
- Hinshaw Music
- Hit Diffusion
- Hoeflich
- Hofmeister
- Holley Music
- Homespun
- Hong Kong University Press
- Hope Publishing Company
- Hornists' Nest
- Hörverlag
- Hotlicks Videos
- Houben Edition
- House of Joy Publishing
- Houston Publishing, Inc.
- Howe Records
- Hubbard
- Hudson Music
- HUG Musikverlage
- Huiksi Music Company
- Humm Publishing
- Hunt Edition