Co-founder & Head of Business Strategy @ JetStrm.com | Organizer of South Bend Start Up Week (Techstars) | IBM Softlayer Catalyst Member (2015)
Honestly I like NationBuilder. It gives you many options to customize both customer facing and the back end. It also integrates with many other SaaS products. If you would like, shoot me an email and we can talk in more detail to make sure you guys understand your options. I have worked with nonprofits and other organizations that fund raise in the past.