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

Zendesk - Zendesk is a beautiful, lightweight help-desk solution.

Kindful - Nonprofit donor database + fundraising tools all in one

SpiceCSM - Integration Platform as a Service for contact centers

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

Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community