Think Tanks List Adam Smith Institute Focus on the Global South The Policy Studies Institute Amnesty International Center for Socio-Economic Studies Hudson Institute Inc. The Aspen Institute Cato Institute Institute of International Relations Institute on Governance Center for Global Development Institute for Policy Studies Foreign Policy Association Global Volunteer Network Institute Liberty and Democracy The Freedom Forum Turkish Economic- Social Studies Federation of American Scientists The Brookings Institution The Independent Institute Reason Foundation Transparency International PIR Center for Policy Studies Population Council Institut Thomas More Population Council Center for International Policy Institute for the Future Institute of International Affairs International Peace Institute Oslo Institute for Public Affairs Institute of International Relations Sam and Jane Foundation Counterpoint Open Briefing Top Think Tanks – Worldwide The Policy Studies Institute Universal Rights Group Council on Foreign Relations The Chicago Council on Global Affairs Finnish Institute of International Affairs Top Think Tanks by Area of Research Top Think Tanks in Western Europe Central and Eastern European Think Tanks Top Think Tanks in the Middle East and N. Africa Source: WordPress.org Penn Libraries-Guides