Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.

GoLocalBot. The project is closed - Platform for volunteers, NGOs, activists and crowdmapping.

Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.

Golden Volunteer Organizer - Automated volunteer recruitment, management, and tracking

Attendify - Develop relationships at the events that you attend by creating smaller events with just a few people.

DEED - On-demand app that makes volunteering easy, social and fun!