700 composers with a page here, the busiest first, counted by the productions and shows we hold for each.
| Glen Hansard Composer, Lyricist | 1 shows |
| Glenn Paxton Composer | 1 shows |
| Gloria Estefan Composer, Lyricist | 1 shows |
| Gloria Story Composer | 1 productions |
| Gordon Duffy Composer | 1 shows |
| Green Day Composer | 1 shows |
| Greg Morrison Composer, Lyricist | 1 shows |
| Greg Vinkler Composer | 1 productions |
| Guy Davis Composer | 1 shows |
| Harold Levey Composer | 1 shows |
| Harry Richman Actor, Composer | 1 shows |
| Harry Tierney Composer | 1 shows |
| Heidi Landesman Composer | 1 shows |
| Heitor Villa-Lobos Composer | 1 shows |
| Helen Colbert Composer | 1 productions |
| Helen Thigpen Composer | 1 productions |
| Herschel Sparber Composer | 1 productions |
| Howard Dietz & Arthur Schwartz Composer | 1 shows |
| Huey Lewis and the News Composer | 1 shows |
| Hunter Ryan Herdlicka Composer | 1 productions |
| Hy Jacobson (additional Composer | 1 shows |
| Imogen Heap Composer | 1 shows |
| Ina Ray Hutton Composer | 1 shows |
| Ingrid Michaelson Composer, Lyricist | 1 shows |
| Irene Castle Composer | 1 shows |
| Irene Sankoff Book Writer, Composer, Lyricist | 1 shows |
| J. Fred Coots Composer | 1 shows |
| Jack Williams Composer | 1 productions |
| Jaime Lozano Composer | 1 shows |
| James Jacob PKA Jakwob Composer | 1 shows |
| James Mundy Composer | 1 shows |
| James Reed Lawlor Composer | 1 shows |
| James Sheldon Composer | 1 shows |
| James Shelton Actor, Composer, Director, Lyricist | 1 productions |
| James Taylor Composer, Lyricist | 1 productions |
| James-Allen Ford Book Writer, Composer, Lyricist | 1 shows |
| Jamestown Revival Composer, Lyricist | 1 shows |
| Jay Navarre Composer | 1 shows |
| Jean Schwartz Composer | 1 shows |
| Jeff Lynne Composer, Lyricist | 1 shows |
| Jeff Marx Composer, Lyricist | 1 shows |
| Jeff Richmond Composer | 1 shows |
| Jeffrey Stock Composer | 1 shows |
| Jelly Roll Morton Composer | 1 shows |
| Jennifer Butt Composer | 1 productions |
| Jerome Moross Composer | 1 shows |
| Jerry Blatt Composer, Lyricist | 1 shows |
| Jerry Leiber Composer, Lyricist | 1 shows |
| Jessica Boerers Composer | 1 shows |
| Jill Santoriello Book Writer, Composer, Lyricist | 1 shows |
| Jim Barne Composer | 1 shows |
| Jim Vallance Composer, Lyricist | 1 shows |
| Jim Walton (Merrily We Roll Along) Composer | 1 shows |
| Joe Iconis Composer, Lyricist | 1 productions |
| Joe Raposo Composer, Lyricist | 1 shows |
| Johann Strauss Sr. Composer | 1 shows |
| John Addison Composer | 1 shows |
| John Farrar Composer, Lyricist | 1 shows |
| John Lonergan Composer | 1 shows |
| John Mundy Composer | 1 shows |