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.
Warmspace - Tech-powered conversations that transform relationships in work and life.
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Prefer - Professionals you need, from people you know
Mobilizon - A free and federated tool to get our events off Facebook
Introwise - All-in-one scheduling and business management platform for coaches, tutors and consultants to run their business online.