Name
|
Location
|
Bias/Affiliation
|
Founded Date
|
City
|
State
|
Acton Institute
|
Grand Rapids
|
Michigan
|
Conservative/Libertarian
|
1990
|
Allegheny Institute for Public Policy
|
Pittsburgh
|
Pennsylvania
|
Conservative
|
1995
|
American Action Forum
|
Washington, D.C.
|
Conservative
|
2009
|
American Civil Rights Union
|
Alexandria
|
Virginia
|
Conservative
|
1998
|
American College of Pediatricians
|
Gainesville
|
Florida
|
Socially Conservative
|
2002
|
American Enterprise Institute
|
Washington, D.C.
|
Center-Right
|
1938
|
American Institute for Economic Research
|
Great Barrington
|
Massachusetts
|
Conservative/Libertarian
|
1933
|
Atlas Network
|
Arlington
|
Virginia
|
Conservative/Libertarian
|
1981
|
Ayn Rand Institute
|
Santa Ana
|
California
|
Center-Right/Libertarian
|
1985
|
Beacon Center of Tennessee
|
Nashville
|
Tennessee
|
Free market/Libertarian
|
2004
|
Beacon Hill Institute
|
Medway
|
Massachusetts
|
Free market/Libertarian
|
1991
|
Berggruen Institute
|
Los Angeles
|
California
|
Liberal
|
2010
|
Bipartisan Policy Center
|
Washington, D.C.
|
Bipartisan
|
2007
|
Brookings Institution
|
Washington, D.C.
|
Nonpartisan
|
1916
|
Buckeye Institute
|
Columbus
|
Ohio
|
Free market
|
1989
|
Caesar Rodney Institute
|
Newark
|
Delaware
|
Right-wing
|
2008
|
Carnegie Endowment for International Peace
|
Washington, D.C.
|
Nonpartisan
|
1910
|
Cascade Policy Institute
|
Portland
|
Oregon
|
Libertarian
|
1991
|
Cato Institute
|
Washington, D.C.
|
Libertarian
|
1977
|
Center for a Just Society*
|
Washington, D.C.
|
Conservative
|
2004
|
Center for American Progress
|
Washington, D.C.
|
Liberal
|
2003
|
Center for Automotive Research
|
Ann Arbor
|
Michigan
|
Nonpartisan
|
2003
|
Center for Development and Strategy
|
Buffalo
|
New York
|
Nonpartisan
|
2014
|
Center for Economic and Policy Research
|
Washington, D.C.
|
Left-leaning
|
1999
|
Center for Freedom and Prosperity
|
Alexandria
|
Virginia
|
Conservative
|
|
Center for Governmental Research
|
Rochester
|
New York
|
Nonpartisan
|
1915
|
Center for Immigration Studies
|
Washington, D.C.
|
Right-wing
|
1986
|
Center for International Policy
|
Washington, D.C.
|
Progressive
|
1975
|
Center for Media and Democracy
|
Madison
|
Wisconsin
|
Progressive
|
1993
|
Center for National Policy
|
Washington, D.C.
|
Center
|
1981
|
Center for Public Integrity
|
Washington, D.C.
|
Independent
|
1989
|
Center for Public Justice
|
Washington, D.C.
|
Christian
|
1977
|
Center for Strategic and Budgetary Assessments
|
Washington, D.C.
|
Independent
|
1983
|
Center for the Study of the Presidency and Congress
|
Washington, D.C.
|
Nonpartisan
|
1965
|
Center of the American Experiment
|
Golden Valley
|
Minnesota
|
Conservative
|
1990
|
Center on Budget and Policy Priorities
|
Washington, D.C.
|
Progressive
|
1983
|
Century Foundation
|
New York
|
New York
|
Progressive
|
1919
|
Claremont Institute
|
Claremont
|
California
|
Conservative
|
1979
|
Committee for a Responsible Federal Budget
|
Washington, D.C.
|
Nonpartisan
|
1981
|
Committee for Economic Development
|
New York
|
New York
|
Nonpartisan
|
1942
|
Competitive Enterprise Institute
|
Washington, D.C.
|
Libertarian
|
1984
|
Concord Coalition
|
Arlington
|
Virginia
|
Nonpartisan
|
1992
|
Conference Board
|
New York
|
New York
|
Nonpartisan
|
1916
|
Constitution Project
|
Washington, D.C.
|
Bipartisan
|
1997
|
Council on Competitiveness
|
Washington, D.C.
|
Nonpartisan
|
1986
|
Demos
|
New York
|
New York
|
Liberal
|
2000
|
Drum Major Institute
|
New York
|
New York
|
Progressive
|
1961
|
Economic Opportunity Institute
|
Seattle
|
Washington
|
Liberal
|
1998
|
Economic Policy Institute
|
Washington, D.C.
|
Left-leaning
|
1986
|
Employment Policies Institute
|
Washington, D.C.
|
Conservative
|
1991
|
Eno Center for Transportation
|
Washington, D.C.
|
Nonpartisan
|
1921
|
Every Texan
|
Austin
|
Texas
|
Nonpartisan
|
1985
|
Federation for American Immigration Reform
|
Washington, D.C.
|
Right-wing
|
1979
|
Florida Institute for Sustainable Energy
|
Gainesville
|
Florida
|
Nonpartisan
|
|
Foundation for Economic Education
|
Atlanta
|
Georgia
|
Conservative/Libertarian
|
1946
|
Future of American Democracy Foundation
|
|
|
Nonpartisan
|
|
Goldwater Institute
|
Phoenix
|
Arizona
|
Conservative/Libertarian
|
1988
|
Gravel Institute
|
New York
|
New York
|
Left-leaning
|
2020
|
Group of Thirty
|
Washington, D.C.
|
Free market
|
1978
|
Guttmacher Institute
|
New York
|
New York
|
Liberal
|
1968
|
Harkin Institute for Public Policy & Citizen Engagement
|
Des Moines
|
Iowa
|
Nonpartisan
|
2013
|
Heartland Institute
|
Arlington Heights
|
Illinois
|
Conservative/Libertarian
|
1984
|
Heritage Foundation
|
Washington, D.C.
|
Conservative
|
1973
|
Hispanic American Center for Economic Research
|
Washington, D.C.
|
Center-Right
|
1996
|
Hoover Institution
|
Stanford
|
California
|
Free market/Libertarian
|
1919
|
Hudson Institute
|
Washington, D.C.
|
Conservative
|
1961
|
Idaho Freedom Foundation
|
Boise
|
Idaho
|
Conservative/Libertarian
|
2009
|
Independence Institute
|
Denver
|
Colorado
|
Libertarian
|
1985
|
Independent California Institute
|
Carlsbad
|
California
|
Independent
|
2018
|
Independent Institute
|
Oakland
|
California
|
Libertarian
|
1986
|
Institute for New Economic Thinking
|
New York
|
New York
|
Liberal
|
2009
|
Institute for Policy Studies
|
Washington, D.C.
|
Progressive
|
1963
|
Institute for Women's Policy Research
|
Washington, D.C.
|
Progressive
|
1987
|
Institute on Religion and Democracy
|
Washington, D.C.
|
Conservative/Christian
|
1981
|
Institute on Taxation and Economic Policy
|
Washington, D.C.
|
Liberal
|
1980
|
International Food Policy Research Institute
|
Washington, D.C.
|
Nonpartisan
|
1975
|
James A. Baker III Institute for Public Policy
|
Houston
|
Texas
|
Nonpartisan
|
1993
|
James Madison Institute
|
Tallahassee
|
Florida
|
Free market
|
1987
|
John S. Watson Institute for Public Policy
|
Union Township
|
New Jersey
|
Nonpartisan
|
|
Joint Center for Political and Economic Studies
|
Washington, D.C.
|
Nonpartisan
|
1970
|
Kansas Policy Institute
|
Wichita
|
Kansas
|
Free market
|
1996
|
Levy Economics Institute
|
New York
|
New York
|
Nonpartisan
|
1986
|
Lexington Institute
|
Arlington
|
Virginia
|
Center-Right
|
1998
|
Lincoln Institute of Land Policy
|
Cambridge
|
Massachusetts
|
Nonpartisan
|
1946
|
Lugar Center
|
Washington, D.C.
|
Bipartisan
|
|
Mackinac Center for Public Policy
|
Midland
|
Michigan
|
Free market
|
1987
|
Maine Policy Institute
|
Portland
|
Maine
|
Free market
|
2002
|
Manhattan Institute for Policy Research
|
New York
|
New York
|
Conservative
|
1978
|
MassINC
|
Boston
|
Massachusetts
|
Nonpartisan
|
1995
|
McCain Institute
|
Washington, D.C.
|
Center-Right
|
2012
|
Mercatus Center
|
Arlington
|
Virginia
|
Free market/Libertarian
|
1980
|
Migration Policy Institute
|
Washington, D.C.
|
Center-Left
|
2001
|
Milken Institute
|
Santa Monica
|
California
|
Independent
|
1991
|
Mises Institute
|
Auburn
|
Alabama
|
Free market/Libertarian
|
1982
|
National Association of Scholars
|
New York
|
New York
|
Conservative
|
1987
|
National Bureau of Asian Research
|
Seattle
|
Washington
|
Nonpartisan
|
1989
|
National Bureau of Economic Research
|
Cambridge
|
Massachusetts
|
Center-Right
|
1920
|
National Center for Policy Analysis
|
Dallas
|
Texas
|
Free market/Libertarian
|
1983
|
National Endowment for Democracy
|
Washington, D.C.
|
Free market
|
1983
|
National Policy Institute
|
Alexandria
|
Virginia
|
Right-wing, Extremist
|
2005
|
New America
|
Washington, D.C.
|
Center-Left
|
1999
|
New Democrat Network
|
Washington, D.C.
|
Center
|
1996
|
Niskanen Center
|
Washington, D.C.
|
Liberal
|
2015
|
Oklahoma Policy Institute
|
Tulsa
|
Oklahoma
|
Nonpartisan
|
2008
|
Oregon Center for Public Policy
|
Portland
|
Oregon
|
Nonpartisan
|
1995
|
Pacific Research Institute
|
Pasadena
|
California
|
Free market/Libertarian
|
1979
|
Pembroke Center for Teaching and Research on Women
|
Providence
|
Rhode Island
|
Nonpartisan
|
1981
|
People's Policy Project
|
Washington, D.C.
|
Left-leaning
|
2017
|
Peterson Institute for International Economics
|
Washington, D.C.
|
Nonpartisan
|
1981
|
Pew Research Center
|
Washington, D.C.
|
Nonpartisan
|
2004
|
Philadelphia Society
|
Grand Rapids
|
Michigan
|
Conservative/Libertarian
|
1964
|
Pioneer Institute
|
Boston
|
Massachusetts
|
Free market
|
1988
|
Policy Matters Ohio
|
Cleveland
|
Ohio
|
Progressive
|
2000
|
Population Research Institute
|
Front Royal
|
Virginia
|
|
1989
|
Potomac Institute for Policy Studies
|
Arlington
|
Virginia
|
Independent
|
1994
|
Progressive Policy Institute
|
Washington, D.C.
|
Center-Left
|
1989
|
Prosperity Now
|
Washington, D.C.
|
Center-Left
|
1979
|
Public Citizen
|
Washington, D.C.
|
Progressive
|
1971
|
Public Policy Institute of California
|
San Francisco
|
California
|
Independent
|
1994
|
R Street Institute
|
Washington, D.C.
|
Center-Right
|
2012
|
RAND Corporation
|
Santa Monica
|
California
|
Nonpartisan
|
1948
|
Reason Foundation
|
Los Angeles
|
California
|
Libertarian
|
1978
|
Reform Institute
|
Alexandria
|
Virginia
|
Center
|
2001
|
Ripon Society
|
Washington, D.C.
|
Conservative
|
1962
|
Rockefeller Institute of Government
|
Albany
|
New York
|
Nonpartisan
|
1981
|
Rockford Institute
|
Rockford
|
Illinois
|
Conservative
|
1976
|
Rockridge Institute
|
Berkeley
|
California
|
Progressive
|
1997
|
Rocky Mountain Institute
|
Basalt
|
Colorado
|
Nonpartisan
|
1982
|
Roosevelt Institute
|
New York
|
New York
|
Liberal
|
1987
|
Seven Pillars Institute
|
Kansas City
|
Missouri
|
Nonpartisan
|
2010
|
Show-Me Institute
|
St. Louis
|
Missouri
|
Free market
|
2014
|
Social Science Research Council
|
Brooklyn
|
New York
|
Independent
|
1923
|
SRI International
|
Menlo Park
|
California
|
Nonpartisan
|
1946
|
Sunwater Institute
|
North Bethesda
|
Maryland
|
Nonpartisan
|
2017
|
Tax Foundation
|
New York
|
New York
|
Center
|
1937
|
Texas Public Policy Foundation
|
Austin
|
Texas
|
Conservative
|
1989
|
Third Way
|
Washington, D.C.
|
Center-Left
|
2005
|
Thomas B. Fordham Institute
|
Washington, D.C.
|
Conservative
|
2007
|
Urban Institute
|
Washington, D.C.
|
Liberal
|
1968
|
W. E. Upjohn Institute for Employment Research
|
Kalamazoo
|
Michigan
|
Nonpartisan
|
1945
|
Washington Policy Center
|
Seattle
|
Washington
|
Nonpartisan
|
|
Yankee Institute for Public Policy
|
Hartford
|
Connecticut
|
Conservative
|
1984
|