Geneva - An all-in-one communication app for groups & communities

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

Community Canvas - A framework to build meaningful communities

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

Common Room - Common Room is the intelligent community growth platform that helps you deepen relationships, build better products and drive business value.

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