- African Development Bank
- Asian Development Bank
- Commission for Environmental Cooperation
- Council of Europe in Respect of the Group of States Against Corruption (GRECO)
- European Bank for Reconstruction and Development
- European Space Agency (formerly the European Space Research Organization (ESRO))
- Food and Agriculture Organization
- Great Lakes Fishery Commission
- Hong Kong Economic and Trade Offices
- Inter-American Defense Board
- Inter-American Development Bank
- Inter-American Investment Corporation
- Inter-American Tropical Tuna Commission
- International Atomic Energy Agency
- International Bank for Reconstruction and Development
- International Boundary and Water Commission, United States & Mexico
- International Centre for Settlement of Investment Disputes
- International Civil Aviation Organization
- International Coffee Organization
- International Committee of the Red Cross
- International Cotton Advisory Committee
- International Criminal Police Organization (INTERPOL) – Limited privileges
- International Development Association
- International Development Law Institute
- International Fertilizer Development Center
- International Finance Corporation
- International Food Policy Research Institute – Limited privileges only
- International Fund for Agricultural Development
- International Hydrographic Bureau
- International Joint Commission – United States and Canada
- International Labor Organization
- International Mobile Satellite Organization
- International Monetary Fund
- International Pacific Halibut Commission
- International Telecommunications Satellite Organization (INTELSAT)
- International Telecommunication Union
- International Union for Conservation of Nature and Natural Resources – Limited privileges
- Interparliamentary Union
- Israel-United States Binational Industrial Research and Development Foundation
- Multilateral Investment Guarantee Agency
- Multinational Force and Observers
- North American Development Bank
- North Pacific Anadromous Fish Commission
- North Pacific Marine Science Organization
- Organization for Economic Cooperation and Development (formerly Organization for European Economic Cooperation)
- Organization for the Prohibition of Chemical Weapons
- Organization of American States
- Organization of Eastern Caribbean States
- Pacific Salmon Commission
- Pan American Health Organization (includes the Pan American Sanitary Bureau)
- Provisional Intergovernmental Committee for the Movement of Migrants from Europe (now known as the Intergovernmental Committee for European Migration)
- Ray & Berndtson International Executive Search Firm
- Relief Web
- South Pacific Commission
- Unicef
- United Nations
- United Nations Development Programme
- United Nations Educational, Scientific, and Cultural Organization
- United Nations Industrial Development Organization
- Universal Postal Union
- World Bank
- World Health Organization
- World Intellectual Property Organization
- World Tourism Organization
- World Trade Organization