Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Geneva - An all-in-one communication app for groups & communities
Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Community Canvas - A framework to build meaningful communities
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
Common Room - Common Room is the intelligent community growth platform that helps you deepen relationships, build better products and drive business value.