List of think tanks in the United States
This is a list of notable think tanks in the United States.
Political and economic think tanks
- Acton Institute
- Allegheny Institute for Public Policy
- American Action Forum
- American Civil Rights Union
- American Enterprise Institute
- American Institute for Economic Research
- Analysis Group
- Atlas Economic Research Foundation
- Beacon Hill Institute
- Berggruen Institute
- Bipartisan Policy Center
- Brookings Institution
- Buckeye Institute
- Cascade Policy Institute
- Cato Institute
- Center for American Progress
- Center for Automotive Research
- Center for Development and Strategy
- Center for Economic and Policy Research
- Center for Freedom and Prosperity
- Center for Governmental Research
- Center for Immigration Studies
- Center for Media and Democracy
- Center for National Policy
- Center for Public Integrity
- Center for Public Justice
- Center for Strategic and Budgetary Assessments
- Center on Budget and Policy Priorities
- The Century Foundation
- Claremont Institute
- Committee for Economic Development
- Committee for a Responsible Federal Budget
- Competitive Enterprise Institute
- Concord Coalition
- The Conference Board
- Constitution Project
- Corporation for Enterprise Development
- Council on Competitiveness
- Demos
- Drum Major Institute
- Economic Opportunity Institute
- Economic Policy Institute
- Employment Policies Institute
- Florida Institute for Sustainable Energy
- Foundation for Economic Education
- Future of American Democracy Foundation
- Goldwater Institute
- Group of Thirty
- Guttmacher Institute
- The Hampton Institute
- The Heartland Institute
- The Heritage Foundation
- Hoover Institution
- Hudson Institute
- Independence Institute
- The Independent Institute
- Institute for Policy Studies
- Institute for Women's Policy Research
- Institute on Taxation and Economic Policy
- James A. Baker III Institute for Public Policy
- James Madison Institute
- John S. Watson Institute for Public Policy
- Joint Center for Political and Economic Studies
- Justice Research Association
- Kansas Policy Institute
- Levy Economics Institute
- Lexington Institute
- Lincoln Institute of Land Policy
- Ludwig von Mises Institute
- Mackinac Center for Public Policy
- Manhattan Institute for Policy Research
- MassINC
- Mercatus Center at George Mason University
- Migration Policy Institute
- Milken Institute
- National Bureau of Asian Research
- National Bureau of Economic Research
- National Center for Policy Analysis
- National Endowment for Democracy
- National Policy Institute
- New America Foundation
- New Democrat Network
- Oklahoma Policy Institute
- Oregon Center for Public Policy
- Pacific Research Institute
- Peterson Institute for International Economics
- Pew Research Center
- Philadelphia Society
- Pioneer Institute
- Policy Matters Ohio
- Population Research Institute (PRI)
- Potomac Institute for Policy Studies
- Progressive Policy Institute
- Public Citizen
- RAND Corporation
- Reason Foundation
- The Reform Institute
- Ripon Society
- Rockefeller Institute of Government
- Rockford Institute
- Rockridge Institute
- Rocky Mountain Institute
- Roosevelt Institute Campus Network
- Seven Pillars Institute
- Show-Me Institute
- Social Science Research Council
- SRI International
- Taos Institute
- Tax Foundation
- Texas Public Policy Foundation
- Third Way
- Thomas B. Fordham Institute
- W. E. Upjohn Institute for Employment Research
- World Sindhi Institute
International relations and security think tanks
- Atlantic Council
- American Foreign Policy Council
- American–Iranian Council
- American Israel Public Affairs Committee
- American Security Council Foundation
- Aspen Institute
- Belfer Center for Science and International Affairs
- Carnegie Endowment for International Peace
- Center for a New American Security
- Center for Advanced Defense Studies
- Center for Global Development
- Center for International Policy
- Center for Security Policy
- Center for Strategic and International Studies
- Center for the National Interest (The Nixon Center)
- Center on Global Interests
- Committee on the Present Danger
- Council on Foreign Relations
- Council on Hemispheric Affairs
- EastWest Institute
- Foreign Policy Initiative
- Foreign Policy Research Institute
- Foundation for Defense of Democracies
- Gatestone Institute
- German Marshall Fund of the United States
- Global Financial Integrity
- Global Trade Watch
- Henry L. Stimson Center
- India, China & America Institute
- Institute for Collaborative Engagement
- Islands Society
- Inter-American Dialogue
- J Street
- Jamestown Foundation
- Jewish Institute for National Security Affairs
- Middle East Forum
- National Security Network
- Pacific Forum CSIS
- Peterson Institute for International Economics
- Project 2049 Institute
- Project for the New American Century
- South Asian Center for Reintegration and Independent Research
- Strategic Studies Institute
- Streit Council for a Union of Democracies
- Tellus Institute
- United States Institute of Peace
- Washington Institute for Near East Policy
- Woodrow Wilson International Center for Scholars
- World Affairs Council
- World Resources Institute
Environment, science and technology think tanks
- Battelle Memorial Institute
- Center for Ethical Solutions
- Discovery Institute
- General Electric EdgeLab
- Fusion Energy Foundation
- Global Development and Environment Institute
- GTRI Office of Policy Analysis and Research
- Hastings Center
- Information Technology and Innovation Foundation
- Keck Institute for Space Studies
- New England Complex Systems Institute (NECSI)
- Pacific Institute
- Resources for the Future
- RTI International (Research Triangle Institute)
- Santa Fe Institute
- The Urban Energy Policy Institute
Arts and Humanities think tanks
- Americans for the Arts
- Catholic Family and Human Rights Institute
- Center for Excellence in Higher Education
- Center for Muslim-Jewish Engagement
- Foundation for Excellence in Education
- Foundation for Rational Economics and Education
- International Center for Research on Women
- International Intellectual Property Institute
- New Teacher Center
- Urban Institute
- Urban Land Institute
- WestEd
