1up Events - Corporate events as a service
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Facebook Local - Discover places to go and events happening near you
Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.
Eventjoy - The Easiest Way To Organize An Event
Ticket Tailor - Ticket Tailor is an easy-to-use event ticketing platform that allows event organizers of all shapes and sizes to sell tickets online.