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.

Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.

SmartMoneyMatch - Create a 100% free account to connect to the global asset management industry. Get access to the best money managers or list your investments, RFPs, jobs, events, business services, and more.

Mobilizon - A free and federated tool to get our events off Facebook

Bylde - Bylde is a SaaS platform you can use to Start, Manage and Grow your groups and communities.

Get Together - Get Together is an open source event manager for local communities.