Midomi - midomi.com find and discover music and people.
Shazam - Shazam is a mobile app that recognizes music and TV around you.
AHA Music - AHA Music is a music identifier on Chrome, it detects songs playing on your browser with Spotify...
SoundHound - SoundHound - the most immersive music search, discovery and play experience on mobile.
AudD - Basically, Shazam API. Recognize music in microphone recordings, audio files, and UGC. Identify songs playing on radio stations and audio streams. Or make your own music recognition app. Recognize music from social networks and analyze trends.
Hotello - Hotello is a SAAS cloud or on premise hospitality management software that manage establishment's day to day operations and customer service.