National Center for Policy Analysis (NCPA): An American non-profit public policy research institute. The NCPA seeks innovative private sector solutions to public policy problems.
Rand Corporation: American nonprofit research organization. Provides analysis and solutions that address the challenges facing the public and private sectors around the world.
The Brookings Institution: Private nonprofit organization that seeks to improve the performance of American institutions, effectiveness of government programs, and the quality of U.S. public policy.