- The Foundation For Enhancing Communitieswww.tfec.org
- Nonprofit Hubwww.nonprofithub.org
- Society for Nonprofitswww.snpo.org
- Classywww.classy.org
- Points of Lightwww.pointsoflight.org
- Community Foundation of Greater Des Moineswww.desmoinesfoundation.org
- National Council of Nonprofitswww.councilofnonprofits.org
- Bridgespanwww.bridgespan.org
