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

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

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

Eventbrite - Discover Great Events or Create Your Own & Sell Tickets

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.

Prekindle - Prekindle is a simple yet powerful event management, ticketing, and marketing platform that helps businesses to sell tickets to the event online and spread the word.