Calendify - Calendify is an event community where you can share, publish, and subscribe to event calendars. It helps you to stay informed about what you are interested in and what is yet to come.

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

Down To Lunch - Press one button to get lunch with friends

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

Bitebot - Coordinate everyday lunches directly in Slack

Ticket Tribe - Sell tickets online with no fees per ticket