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

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

GivingWay - Travel the world, do some good.

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

Volgistics - Volgistics is a volunteer management software solution, that helps to manage volunteers through the entire volunteer cycle.

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