Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Event Hunt - Startups and Tech Events Curated By Locals
Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Iventlist - Create an app for your event in minutes 🎟️
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