Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform

Ticketmaster - At Ticketmaster, we strive to put fans first. Every day we're listening to your feedback and working to improve your experience before, during, and after events.

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

Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.

Ticket Tribe - Sell tickets online with no fees per ticket

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