TicketingHub - Next generation of Ticketing
Bloomerang - Bloomerang is a simple donor database and fundraising software solution that helps nonprofits decrease donor attrition and increase revenue.
TicketPeak - Online Ticketing Software
Kindful - Nonprofit donor database + fundraising tools all in one
WP Event Manager - #1 WordPress Event Manager Plugin | Calendar | Sell Tickets
Classy - Expressive, flexible, and powerful stylesheets for native iOS apps