Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Tix - Tix is a state-of-the-art, cloud-based ticketing system that features fully integrated access controls, event management controls, multi-channel distribution capabilities, and a robust reporting suite.
Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
EventTitans - Top rated event management software
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
Brushfire - Brushfire offers tools for online registration and event management.