The WCRO gratefully acknowledges the following foundations, governments and institutions for their generous support:
- American University Washington College of Law
- Open Society Foundations
- U.S. Department of State
- Open Society Justice Initiative
- John D. and Catherine T. MacArthur Foundation
- The Oak Foundation
- The Planethood Foundation
- Ford Foundation
- Rockefeller Foundation
- JEHT Foundation
- Global Affairs Canada
- Swiss Federal Department of Foreign Affairs
- Ministry of Foreign Affairs of Finland
- Ministry of Foreign Affairs of the Netherlands
- American Red Cross
- PluriCourts, University of Oslo
- American Bar Association
- American Society of International Law