# List of think tanks in the United States

This is a list of think tanks in the United States.

## Politics and economy

* Acton Institute
* Allegheny Institute for Public Policy
* American Action Forum
* American Civil Rights Union
* American College of Pediatricians
* American Enterprise Institute
* American Institute for Economic Research
* Atlas Network
* Ayn Rand Institute
* Beacon Center of Tennessee
* Beacon Hill Institute
* Berggruen Institute
* Bipartisan Policy Center
* Brookings Institution
* Buckeye Institute
* Caesar Rodney Institute
* Carnegie Endowment for International Peace
* Cascade Policy Institute
* Cato Institute
* Center for a Just Society
* 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 of the American Experiment
* Center on Budget and Policy Priorities
* Claremont Institute
* Committee for a Responsible Federal Budget
* Committee for Economic Development
* Competitive Enterprise Institute
* Concord Coalition
* Constitution Project
* Council on Competitiveness
* Demos
* Drum Major Institute
* Economic Opportunity Institute
* Economic Policy Institute
* Employment Policies Institute
* Eno Center for Transportation
* Ethics and Public Policy Center
* Every Texan
* Federation for American Immigration Reform
* Florida Institute for Sustainable Energy
* Foundation for Economic Education
* Future of American Democracy Foundation
* Goldwater Institute
* Group of Thirty
* Guttmacher Institute
* Hispanic American Center for Economic Research
* Hoover Institution
* Hudson Institute
* Independence Institute
* Independent Institute
* Institute for New Economic Thinking
* Institute for Policy Studies
* Institute for Women's Policy Research
* Institute on Religion and Democracy
* Institute on Taxation and Economic Policy
* International Food Policy Research Institute
* 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
* Kansas Policy Institute
* Levy Economics Institute
* Lexington Institute
* Lincoln Institute of Land Policy
* Lugar Center
* Mackinac Center for Public Policy
* Maine Policy Institute
* Manhattan Institute for Policy Research
* MassINC
* McCain Institute
* Mercatus Center at George Mason University
* Migration Policy Institute
* Milken Institute
* Mises Institute
* National Association of Scholars
* National Bureau of Asian Research
* National Bureau of Economic Research
* National Center for Policy Analysis
* National Endowment for Democracy
* National Policy Institute
* New America
* New Democrat Network
* Niskanen Center
* Oklahoma Policy Institute
* Oregon Center for Public Policy
* Pacific Research Institute
* Pembroke Center for Teaching and Research on Women at Brown University
* People's Policy Project
* 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
* Prosperity Now
* Public Citizen
* Public Policy Institute of California
* R Street Institute
* RAND Corporation
* Reason Foundation
* Regional Plan Association
* Ripon Society
* RMI
* Rockefeller Institute of Government
* Rockford Institute
* Rockridge Institute
* Roosevelt Institute
* Seven Pillars Institute
* Show-Me Institute
* Social Science Research Council
* SRI International
* Tax Foundation
* Texas Public Policy Foundation
* The Century Foundation
* The Conference Board
* The Gravel Institute
* The Harkin Institute for Public Policy & Citizen Engagement
* The Heartland Institute
* The Heritage Foundation
* The Independent Institute
* The Reform Institute
* Third Way
* Thomas B. Fordham Institute
* Urban Institute
* W. E. Upjohn Institute for Employment Research
* Washington Policy Center
* World Sindhi Institute

## International relations and security

* 38 North
* American Foreign Policy Council
* American Israel Public Affairs Committee
* American Security Council Foundation
* American Security Project
* American–Iranian Council
* Arctic Institute
* Asia Society
* Aspen Institute
* Atlantic Council
* Belfer Center for Science and International Affairs
* Carnegie Council for Ethics in International Affairs
* Carnegie Endowment for International Peace
* Carter Center
* Center on International Cooperation
* Center for a New American Security
* Center for Advanced Defense Studies
* Center for Global Development
* Center for International Development
* Center for International Policy
* Center for International Security and Cooperation
* Center for Naval Analysis
* Center for Security and Emerging Technology
* Center for Security Policy
* Center for Strategic and International Studies
* Center for the National Interest (The Nixon Center)
* Center for Transatlantic Relations
* Center on Global Interests
* Chicago Council on Global Affairs
* Committee on the Present Danger
* Council on Foreign Relations
* Council on Hemispheric Affairs
* Defense Priorities
* East-West Center
* EastWest Institute
* Foreign Policy Research Institute
* Foundation for Defense of Democracies
* Gatestone Institute
* German Marshall Fund of the United States
* Global Trade Watch
* GlobalSecurity.org
* Henry L. Stimson Center
* Institute for Defense Analyses
* Institute for Science and International Security
* Inter-American Dialogue
* International Crisis Group
* Islands Society
* Israel Policy Forum
* J Street
* Jewish Institute for National Security Affairs
* Middle East Forum
* Middle East Institute
* National Committee on American Foreign Policy
* National Security Network
* Open Society Foundations
* Pacific Council on International Policy
* Pacific Forum CSIS
* Peterson Institute for International Economics
* Project 2049 Institute
* Project for the New American Century
* RTI International
* Sikh Coalition
* Special Competitive Studies Project
* Strategic Studies Institute
* Streit Council for a Union of Democracies
* Tellus Institute
* Jamestown Foundation
* The Stimson Center
* Truman National Security Project
* 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

* Battelle Memorial Institute
* Center for Climate and Energy Solutions
* Center for Ethical Solutions
* Copenhagen Consensus Center
* Discovery Institute
* Earth Institute
* Fusion Energy Foundation
* General Electric EdgeLab
* Global Development and Environment Institute
* GTRI Office of Policy Analysis and Research
* Hastings Center
* Information Technology and Innovation Foundation
* Keck Institute for Space Studies
* Metropolitan Area Planning Council
* New England Complex Systems Institute
* Noblis
* Pacific Institute
* Property and Environment Research Center
* Resources for the Future
* RTI International (Research Triangle Institute)
* Santa Fe Institute
* Scripps Research Institute
* Watson Institute at Brown University
* Institute for Progress

## Arts and humanities

* 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 Land Institute