Slack Events API - Subscribe to events in Slack via HTTP
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
B12 Bookings - Bookings scheduling software that integrates with your site
Splash - Anyone can create a Splash event, whether you're a company hosting a single event or an individual hosting a personal event like a birthday or wedding. Get Started for Free. Text goes here. X. Full Event Program.
Guestboard - Lead powerfully-organized group events with Guestboard – a modular event platform that gives groups of 10-1000+ people a central space to coordinate, build excitement, and save money. No more crazy email threads. No more massive group texts.
Paperless Post - Paperless Post is an online platform for creating custom card and invitations.