Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
eventup - Find Great Event Venues in the US
Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.
EventCast - EventCast is an app that helps you schedule events and easily invite participants to subscribe.
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.
EvenTurbo - It has a solution for any size of organization, be it a small business, local user group, regional training company or a large organization.