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.
Iventlist - Create an app for your event in minutes 🎟️
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Event Hunt - Startups and Tech Events Curated By Locals
Zoho Backstage - Plan, run, and analyze your event— all from one place
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.