| Custom Broadway Midi: Provides digital accompaniment tracks to the musical theatre community. Based in New York City. |
| F7 Sound and Vision: A variety of sound effects on CD and sound effect equipment. |
| Jan Kooper: Music and soundscapes created for theater productions. |
| Jetsound: Provides sound effects for theatre productions in wave, MP3 and audio CD format. |
| Loopwise.com: Royalty free music loops and sample CDs. |
| Sound Effects: Links to websites containing sound effects. |
| Sounddogs.com: Online commercial sound effects and music library. |
| Valentino: Sound effects, production music, production elements, music libraries, cd-roms and music software. |
Classical
