Gametime - Last minute sports, concert and theater tickets.
Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Atom Tickets - Atom Tickets is movie-going for the 21st century. Find the perfect movie & showtimes, buy your tickets, select seats, & order concessions all online, today!
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
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
Tikly - Sell tickets online. Less fees, more transparency.