RecordGram - A studio and production marketplace in the palm of your hand
Melosity - Melosity offers an online music studio that enables musicians to collaborate on a single or multiple tracks from anywhere in the world.
SoundBetter - Marketplace for musicians and music production professionals
Audulus - A universe of sound at your fingertips - Audulus is a modular music processing app
Soundsnap - Shutterstock for sound effects
Melody ML - Easily separate audio tracks using machine learning