Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Hop - Spike makes working easier and more efficient. Saving you and your team time, sanity, and a lot of headaches.
pretix - pretix helps you to sell tickets for your event in an easy way. It supports multi-lingual events and provides a wide range of features
Funnster - The best way to get together with your friends and family
Ticket Tribe - Sell tickets online with no fees per ticket
Gigstarter - Gigstarter uses crowd funding to take the pain from arranging events.