Top 100 Think Tanks – United States – Penn Libraries – University of Pennsylvania

• Brookings
• Center for Strategic and International Studies
• Carnegie Endowment for International Peace
• Heritage Foundation
• Peterson Institute for International Economics (PIIE)
• Urban Institute
• Woodrow Wilson International Center for Scholars
• Center for American Progress (CAP)
• Atlantic Council
• RAND Corporation
• Hudson Institute
• Council on Foreign Relations (CFR)
• Belfer Center for Science and International Affairs
• Cato Institute
• Center for New American Security (CNAS)
• American Enterprise Institute for Public Policy Research (AEI) — United States
• James A. Baker III Institute for Public Policy
• Stimson Center
• Human Rights Watch
• Resources for the Future (RFF)
• Freedom House
• German Marshall Fund of the United States (GMF)
• Hoover Institution
• World Resources Institute (WRI)
• McKinsey Global Institute
• National Bureau of Economic Research
• Inter-American Dialogue
• Information Technology and Innovation Foundation (ITIF)
• Center for Global Development (CGD)
• Chicago Council on Global Affairs
• United States Institute of Peace (USIP)
• Acton Institute for Study of Religion and Liberty
• Pew Research Center
• Center on Budget and Policy Priorities (CBPP)
• Manhattan Institute for Policy Research (MI)
• Economic Policy Institute (EPI)
• National Bureau of Asian Research (NBR)
• Worldwatch Institute
• Mercatus Center
• Carnegie Council for Ethics in International Affairs
• Migration Policy Institute (MPI)
• Independent Institute
• Center for Climate and Energy Solutions (C2ES)
• Middle East Institute (MEI)
• Earth Institute
• Center for the National Interest (CFTNI)
• Bipartisan Policy Center (BPC)
• Aspen Institute
• EastWest Institute (EWI)
• New America Foundation
• Center for Transatlantic Relations (CTR)
• Joint Center for Political and Economic Studies
• Foreign Policy Research Institute (FPRI)
• Atlas Network
• Foundation for Economic Education (FEE)
• Reason Foundation
• Institute for Policy Studies (IPS)
• Milken Institute
• International Food Policy Research Institute (IFPRI)
• Center for Economic and Policy Research (CEPR)
• Third Way
• Committee for Economic Development
• Center for European Policy Analysis (CEPA)
• Center for Strategic and Budgetary Assessments (CSBA)
• McCain Institute for International Leadership
• Hispanic American Center for Economic Research (HACER)
• Open Society Foundations (OSF)
• Competitive Enterprise Institute (CEI)
• Institute for Women’s Policy Research (IWPR)
• Arctic Institute
• R Street Institute
• Center for International Security and Arms Control (CISAC)
• Lugar Center
• Institute for New Economic Thinking
• Berggruen Institute
• Demos
• Congressional Research Service
• Africa Center for Strategic Studies
• Project for the Study of the 21st Century (PS21)
• Institute of Religion and Democracy (IRD)
• Institute for Science and International Security (ISIS)
• Mackinac Center
• Center for International Policy
• Washington Center for Equitable Growth
• Center for Naval Analyses
• Institute for Defense Analyses
• Levy Institute
• Public Policy Institute of California
• Goldwater Institute
• Roosevelt Institute
• Institute for the Study of War (ISR)
• Center for Immigration Studies
• Center for National Policy
• Pacific Council on International Policy
• Center for International Development (CID)
• Pacific Forum
• Beacon Hill Institute
• Center for Governmental Research
• American Foreign Policy Council
• J Street
• Federation for American Immigration Reform

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