TechEvents.co - Tech and startup events aggregator
EventsBase - Find the best professional events nearby or globally
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Rally by Eventbrite - Find the best local events and rally your friends to join
Facebook Local - Discover places to go and events happening near you
Komos - komos.io is a free tool, that helps you discover comedy events near you and get event tickets for your favourite comics.