Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Dialog Messenger - handy and feature-rich enterprise multi-device messenger available for server or cloud – Slack-like, but not Slack-limited
Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.
Ripcord - A desktop chat client for Discord and Slack
Ticket Tailor - Ticket Tailor is an easy-to-use event ticketing platform that allows event organizers of all shapes and sizes to sell tickets online.
Ziggs - Smoothly Share Content Between Devices!