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

Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.

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

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.