Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.

Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.

DownToMeet - DownToMeet is a platform to organize, find, and attend group events.

Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.

CooMeet - CooMeet is one of the best and leading next generation of video dating web-based application specially designed for those users who want to talk online to people they have never met.

Attendify - Develop relationships at the events that you attend by creating smaller events with just a few people.