Since founding, the Center on International Cooperation has received financial support from the following institutions:

• Aspen Institute
• Government of Belgium
• Madeline and Kevin R. Brine Charitable Trust and Fulbright Scholarship Board for CIC's visiting scholar program.
• Government of Canada
• Carnegie Corporation of New York
• Clingendael
• Government of Denmark
• Fafo
• Ford Foundation
• William and Flora Hewlett Foundation
• Institute of International Education
• Government of Ireland
• Government of Japan
• John D. and Catherine T. MacArthur Foundation
• Management Assistance Group
• Government of the Netherlands
• Nuclear Threat Initiative
• Government of Norway
• Open Society Institute
• OSI Development
• Rockefeller Brothers Fund
• Rockefeller Foundation
• Government of Sweden
• Government of the United Kingdom
• United Nations Assistance Mission in Afghanistan
• United Nations Development Programme
• United Nations Children's Fund
• United Nations Office for Project Services
• United States Institute of Peace
• Raoul Wallenberg Institute
• World Bank Group