AudioTag - AudioTag.info — is a free music-recognition service.
Gracenote Music Recognition - Gracenote Music Recognition is best in class music recognition platform that uses audio fingerprinting technology for identifying any music.
ACRCloud - Automatic Content Recognition (ACR) cloud services for Audio Recognition ( identify music, ads ), Broadcast Monitoring, Second Screen, Copyright Protection.
AHA Music - AHA Music is a music identifier on Chrome, it detects songs playing on your browser with Spotify...
Tunatic - Free software to identify songs on your computer
Audiggle - Audiggle is a versatile platform that offers services for sound recognition with ease and comfort.