Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
TicketPeak - Online Ticketing Software
Zoho Backstage - Plan, run, and analyze your event— all from one place
Nutickets - Event management software fully tailored to your brand with white label ticketing, registration, website integration & custom development.
Meetup for iOS and Android - Discover groups that are all about the things you love
TicketingHub - Next generation of Ticketing