| World Organisation | Headquarter |
|---|
| United Nations Organisation (UNO) | New York |
| United Nations Environment Programme (UNEP) | Nairobi (Kenya) |
| United Nations High Commission for Refugees (UNHCR) | Geneva |
| United Nations Development Programme (UNDP) | New York |
| United Nations Population Fund (UNFPA) | New York |
| United Nations Educational Scientific and Cultural Organisation (UNESCO) | Paris |
| World Health Organisation | Geneva |
| International Monetary Fund | Washington |
| Commonwealth | London |
| Organisation of Petroleum Exporting Countries (OPEC) | Vienna |
| World Wildlife Fund (WWF) | Gland (Switzerland) |
| United Nations Conference on Trade and Development (UNCTAD) | Geneva |
| International Olympic Committee (IOC) | Lusane |
| League of Arab States | Cario (Egypt) |
| Amnesty International | London |
| Asian Development Bank | Manila (Philippines) |
| Association of South-East Asian Nations (ASEAN) | Jakarta |
| North Atlantic Treaty Organisation (NATO) | Brussels |
| African Union (AU) | Addis-Abada |
| South Asian Association for Regional Corporation | Kathmandu |
| International Police (INTERPOL) | Lyons (France) |
| World Trade Organisation | Geneva |
| Women Aid International | London |
| World Bank | Washington |
| Universal Postal Union | Berne (Switzerland) |
| BENELUX Economic Union | Brussels |
| General Agreement on Tariffs and Trade (GATT) | Geneva |
| United Nations Children’s Emergency Fund (UNICEF) | New York, USA |
| UN Women | New York, USA |
| International Labour Organization (ILO) | Geneva, Switzerland |
| United Nations Security Council (UNSC) | New York, USA |
| International Committee of the Red Cross | Geneva, Switzerland |
| International Organization for Standardization | Geneva, Switzerland |
| Organization for Economic Cooperation and Development (OECD) | Paris, France |
| World Meteorological Organisation (WMO) | Geneva, Switzerland |
| Joint United Nations Programme on HIV/AIDS (UNAIDS) | Geneva, Switzerland |
| International Atomic Energy Agency (IAEA) | Vienna, Austria |
| Food and Agricultural Organisation (FAO) | Rome, Italy |
| World Intellectual Property Organization (WIPO) | Geneva, Switzerland |
| Transparency International | Berlin, Germany |
| Organization of Islamic Cooperation | Jeddah, Saudi Arabia |
| Worldwide Fund for Nature (WWF) | Gland, Switzerland |
| United Nations Industrial Development Organization (UNIDO) | Vienna, Austria |
| International Maritime Organisation (IMO) | London, United Kingdom |
| International Renewable Energy Agency | Abu Dhabi, UAE |
| Organization for the Prohibition of Chemical Weapons | The Hague, Netherlands |
| International Council on Monuments and Sites (ICOMOS) | Paris, France |
| Asia-Pacific Economic Cooperation (APEC) | Queenstown, Singapore |
| International Union of Pure and Applied Chemistry | North Carolina |
| World Economic Forum | Cologny-Geneva, Switzerland |
| Indian Ocean Rim Association for Regional Cooperation | Ebene, Mauritius |
| United Nations Interregional Crime and Justice Research Institute (UNICRI) | Turin, Italy |
| International Telecommunication Union (ITU) | Geneva, Switzerland |
| International Civil Aviation Organization (ICAO) | Montreal, Canada |
| United Nations University (UNU) | Tokyo, Japan |
| International Union for Conservation of Nature (IUCN) | Gland, Switzerland |
| United Nations Office on Drugs and Crime (UNODC) | Vienna, Austria |
| UN-OHRLLS | New York, USA |
| United Nations Human Settlement Programme (UN-Habitat) | Nairobi, Kenya |
| International Fund for Agricultural Development (IFAD) | Rome, Italy |
| United Nations World Tourism Organization (UNWTO) | Madrid, Spain |
| UN Office for Disaster Risk Reduction (UNDRR) | Geneva, Switzerland |
| Office of the High Commissioner for Human Rights (OHCHR) | Geneva, Switzerland |
| United Nations Institute for Disarmament Research (UNIDIR) | Geneva, Switzerland |
| United Nations Institute for Training and Research (UNITAR) | Geneva, Switzerland |
| United Nations Relief and Works Agency for Palestine Refugees (UNRWA) | Amman, Jordan |
| International Court of Justice (ICJ) | The Hague, Netherlands |
| World Food Programme (WFP) | Rome, Italy |
| International Organization for Migration (IOM) | Geneva, Switzerland |
| United Nations System Staff College (UNSSC) | Turin, Italy |
| United Nations Office for Project Services (UNOPS) | Copenhagen, Denmark |
| United Nations Framework Convention on Climate Change (UNFCCC) | Bonn, Germany |
| Arctic Council | Tromso, Norway |
| African Development Bank Group | Abidjan, Cote d’Ivoire |
| International Trade Centre (ITC) | Geneva, Switzerland |
| Andean Community | Lima, Peru |
| Association of Caribbean States (ACS) | Port of Spain, Trinidad, Tobago |
| Bank for International Settlements (BIS) | Basel, Switzerland |
| International Solar Alliance (ISA) | Gurugram, India |
| Black Sea Economic Cooperation (BSEC) | Istanbul, Turkey |
| Caribbean Community (CARICOM) | Georgetown, Guyana |
| Council of Europe | Strasbourg, France |
| Council of European Municipalities and Regions (CEMR) | Geneva, Switzerland |
| Central American Bank for Economic Integration | Tegucigalpa, Honduras |
| Common Market for Eastern and Southern Africa (COMESA) | Lusaka, Zambia |
| Council of the Baltic Sea States (CBSS) | Stockholm, Switzerland |
| European Bank for Reconstruction and Development (EBRD) | London, United Kingdom |
| European Free Trade Association (EFTA) | Geneva, Switzerland |
| Economic Community of West African States (ECOWAS) | Federal Capital Territory, Nigeria |
| European Central Bank (ECB) | Frankfurt, Germany |
| European Space Agency (ESA) | Paris, France |
| Association of European Parliamentarians with Africa (AWEPA) | Amsterdam, Netherlands |
| European Union (EU) | Brussels, Belgium |
| Group of Eight (G8) | New York, USA |
| G-15 Summit | Geneva, Switzerland |
| Intergovernmental Authority on Development (IGAD) | Djibouti, Djibouti |
| International Chamber of Commerce (ICC) | Paris, France |
| Inter-American Development Bank (IDB) | Washington, DC, USA |
| International Development Association (IDA) | Washington, DC, USA |
| International Finance Corporation (IFC) | Washington, DC, USA |
| International Labour Organization (ILO) | Geneva, Switzerland |
| International Peace Bureau (IPB) | Geneva, Switzerland |
| International Federation of Red Cross and Red Crescent Societies (IFRC) | Geneva, Switzerland |
| International Seabed Authority (ISA) | Kingston, Jamaica |
| International Service for Human Rights (ISHR) | Geneva, Switzerland |
| Inter-Parliamentary Union | Geneva, Switzerland |
| Multilateral Investment Guarantee Agency (MIGA) | Washington, DC, USA |
| The Non-Aligned Movement (NAM) | Central Jakarta, Indonesia |
| Organization for Security and Co-operation in Europe (OSCE) | Vienna, Austria |
| Organization of Arab Petroleum Exporting Countries (OAPEC) | Kuwait, Middle East |
| World Organization Against Torture (OMCT) | Geneva, Switzerland |
| Secretariat of the Pacific Community (SPC) | Noumea, New Caledonia |
| Nordic Council of Ministers | Copenhagen, Denmark |
| Unión Latina | Paris, France |
| United Nations Economic and Social Commission for Western Asia (ESCWA) | Beirut, Lebanon |
| United Nations Economic and Social Commission for Asia and the Pacific (ESCAP) | Bangkok, Thailand |
| United Cities & Local Governments (UCLG) | Barcelona, Spain |
| United Nations International Research and Training Institute for the Advancement of Women (INSTRAW) | Santo Domingo, Dominican Republic |
| United Nations Office for the Coordination of Humanitarian Affairs (OCHA) | Geneva, Switzerland and New York City, USA |
| Western European Union (WEU) | Paris, France |
| World Federation of United Nations Associations (WFUNA) | Geneva, Switzerland and New York City, USA |
