EventBrite Online RSVP - EventBrite Online RSVP is a cost-effective event management software that provides services to help businesses organize, invite people together for an event, and sell tickets.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
EventCreate Online RSVP - EventCreate Online RSVP is a tool for collecting RSVPs online.
Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Magnet Event Pro - Magnet Event Pro provides tools that help you easily create a small or a large-scale event completely on your own terms.
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