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.

ACTIVE JumpForward - JumpForward serves over 150,000 users and 175 college athletic departments with recruiting and camp management software built to keep you compliant.

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

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

SurfersList - The ultimate online solution for finding, buying, and selling new and used surf equipment.

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