Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
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.
Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.
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
Picatic - Picatic encourages event organizers to create a custom website, sell tickets and then determined their cost of use. Selling out events is easy with Picatic.