The Membership of the CEB consists of the 31 Organizations of the United Nations system: the United Nations Organization which is represented by the Secretary-General of the United Nations as Chair of CEB; 15 Specialized Agencies (Specialized agencies are autonomous organizations working with the United Nations and each other through the coordinating machinery of ECOSOC at the intergovernmental level, and through the CEB at the inter-secretariat level); 12 Funds and Programmes of the United Nations Organization and 3 Related Organizations.

List of Member Organizations