Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Event Hunt - Startups and Tech Events Curated By Locals
Iventlist - Create an app for your event in minutes 🎟️
Leade.rs - Leaders matches event organizers with speakers in tech.
TechEvents.co - Tech and startup events aggregator
Meetup for iOS and Android - Discover groups that are all about the things you love