YesEvents - YesEvents is a full-service registration management company that provides a wide spectrum of event services to include: online registration, housing management, onsite registration management, onsite logistics, planning, site selection, ticketing, b…

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

eShow - eShow's suite of professional event management solutions provide event managers with a full line of customizable web-based and on-site event management solutions for all size events.

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

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.