- American Enterprise Institute for Public Policy Research
- American Foreign Policy Council
- American Institute for Contemporary German Studies
- Aspen Institute
- Atlantic Council for the United States
- Atlas Network
- Brookings Institution
- California Budget & Policy Center
- Carnegie Council on Ethics and International Affairs
- Carnegie Endowment for International Peace
- Carter Center
- Cascade Policy Institute
- Cato Institute
- Center for American Progress
- Center for Economic Policy and Research
- Center for Effective Government
- Center for International Private Enterprise
- Center for the National Interest
- Center for Strategic & International Studies
- Chicago Council on Global Affairs
- Committee for Economic Development
- Commonwealth Institute
- Council on Foreign Relations
- Earth Policy Institute
- East-West Center
- EastWest Institute
- Economic Policy Institute
- Economic Strategy Institute
- Ethics and Public Policy Center
- Foreign Policy Research Institute
- Henry L. Stimson Center
- Heritage Foundation
- Hudson Institute
- Independent Institute
- Information Technology & Innovation Foundation
- Institute for the Future
- Inter-American Dialogue
- International Food Policy Research Institute
- Joint Center for Political and Economic Studies
- Maureen and Mike Mansfield Foundation
- Migration Policy Institute
- National Bureau of Economic Reserach
- National Center for Policy Analysis
- New America
- Peterson Institute for International Economics
- Population Council
- RAND Corporation
- Resources for the Future
- Social Science Research Council
- The Center for Public Integrity
- Third Way
- United States Institute of Peace
- Urban Institute
- Washington Institute for Near East Policy
- Woodrow Wilson International Center for Scholars
- World Resources Institute