Christian Aid (CA)

Christian Peacemaker Teams (CPT)

Christic Institute (CI)

Church Women United (CWU)

Citizen Action (CA)

Citizens for Responsibility and Ethics in Washington (CREW)

Civil Justice Foundation

Civis Analytics (CA)

Class War Federation (CWF)

Classroom Struggle (CS)

Clergy and Laity United for Economic Justice (CLUE)

Climate Reality Project (CRP)

ClimateWorks Foundation (CWF)

Cloward-Piven Strategy (CPS)

Club For Degrowth (CFD)

Club of Rome (COR)

Coalition for Humane Immigrant Rights of Los Angeles (CHIRLA)

Coalition for Peace in the Middle East (CPME)

Coalition for the Human Rights of Immigrants (CHRI)

Coalition for World Peace (CWP)

Coalition of Women for Peace (CWP)

Coalition on Human Needs (CHN)

Code For Progress (CFP)

Code Pink: Women for Peace

Colombe Foundation