American Society for Public Administration (ASPA) " the largest and most prominent professional association for public administration. It is dedicated to advancing the art, science, teaching and practice of public and non-profit administration."
International Society for Third-Sector Research (ISTR) "The Society's mission is to promote the development of high quality research and education internationally on Third Sector related issues, theories, and policies..."
John Hopkins Center for Civil Society Studies A leading source of ground-breaking research and knowledge about the nonprofit sector, social investing, and the tools of government.
National Association of Schools of Public Affairs and Administration "NASPAA's twofold mission is to ensure excellence in education and training for public service and to promote the ideal of public service."
Urban Institute Nonprofit research and statistics through the National Center for Charitable Statistics.