Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
GoToWebinar - Webinar & Online Conference | GoToWebinar
Ticket19 - Sell tickets for your events with minimal transaction fees.
Zoom - Equip your team with tools designed to collaborate, connect, and engage with teammates and customers, no matter where you’re located, all in one platform.
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
WebEx - Cisco WebEx Web Conferencing, Online Meetings, Desktop Sharing, Video Conferencing