PartyWith - Connecting people who love to party - anytime, anywhere.
Nightler - Find the people. Live the night.
Clearbit - Clearbit provides Business Intelligence APIs
Party with a Local - Party with a Local is a free app that connects travelers with locals that want to party.
LinkedIn Events - A new way of connecting people from LinkedIn
Discotech - Opentable for nightlife. Tickets, guest lists, and VIP.