EventTitans - Top rated event management software

Bloomerang - Bloomerang is a simple donor database and fundraising software solution that helps nonprofits decrease donor attrition and increase revenue.

Tix - Tix is a state-of-the-art, cloud-based ticketing system that features fully integrated access controls, event management controls, multi-channel distribution capabilities, and a robust reporting suite.

Kindful - Nonprofit donor database + fundraising tools all in one

Brushfire - Brushfire offers tools for online registration and event management.

Classy - Expressive, flexible, and powerful stylesheets for native iOS apps