Think Tanks |
Political Orientation |
Conservative |
| Heritage Foundation | conservative |
| American Enterprise Institute | conservative |
| Center for Strategic and International Studies | conservative |
| Hudson Institute | conservative |
| Hoover Institution | conservative |
| Progress and Freedom Foundation | conservative |
| Manhattan Institute | conservative |
| Competitive Enterprise Institute | conservative |
| International Institute for Strategic Studies | conservative |
| Family Research Council | conservative |
| National Center for Policy Analysis | conservative |
| Cato Institute | conservative / libertarian |
| Reason Foundation | conservative / libertarian |
Centrist |
| Washington Institute for Near East Policy | center-right |
| RAND Corporation | center-right |
| Milken Institute | centrist |
| National Bureau of Economic Research | centrist |
| Council on Foreign Relations | centrist |
| Freedom Forum | centrist |
| Economic Strategy Institute | centrist |
| Brookings Institution | centrist |
| Carnegie Endowment | centrist |
| Institute for International Economics | centrist |
| Progressive Policy Institute | centrist |
| Public Policy Institute of Calofornia | centrist |
| Urban Institute | center-left |
Progressive |
| Citizens for Tax Justice | progressive |
| Justice Policy Institute | progressive |
| Center on Budget and Policy Priorities | progressive |
| Center for Public Integrity | progressive |
| Joint Center for Political and Economic Studies | progressive |
| Worldwatch Institute | progressive |
| Center for Defense Information | progressive |
| Institute for Policy Studies | progressive |
| Economic Policy Institute | progressive |
Democracy
watchMedia
Control and Propaganda