Candidate - A Q&A game to meet new people
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Clocked - Dating matches for city based millennials.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Datezr - Mobile app with quick date ideas based on location
Bigtent - BigTent is a web-based organization and communication portal for groups.