United Nations System Chief Executives Board for Coordination (CEB) - New York, USA. http://www.unsceb.org/

Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO)  (Preparatory Commision) - Vienna, Austria.   http://www.ctbto.org/

United Nations CyberSchoolBus - New York, USA. http://cyberschoolbus.un.org/

Administrative Committee on Coordination (ACC) (now CEB) and its former Subcommittees

Economic Commission for Africa (ECA) - Addis Ababa, Ethiopia. http://www.uneca.org/

Economic Commission for Europe (ECE) - Geneva, Switzerland. http://www.unece.org/

Economic Commission for Latin America and the Caribbean (ECLAC) - Santiago, Chile. http://www.eclac.org/

Economic and Social Commission for Asia and the Pacific (ESCAP) - Bangkok, Thailand. http://www.unescap.org/

Economic and Social Commission for Western Asia (ESCWA) - Beirut, Lebanon. http://www.escwa.org.lb/

Food and Agriculture Organization of the United Nations (FAO) - Rome, Italy.  http://www.fao.org/

Global Programme on Globalization, Liberalization and Sustainable Human Development - Geneva, Switzerland [UNCTAD-UNDP]. http://www.unctad-undp.org/

Inter-Agency Network on Women and Gender Equality (IANWGE) (former IACWGE) - New York, USA.  http://www.un.org/womenwatch/ianwge/

Inter-Agency Procurement Services Office (IAPSO) - Copenhagen, Denmark. http://www.iapso.org/

International Atomic Energy Agency (IAEA) - Vienna, Austria. http://www.iaea.org/

International Bank for Reconstruction and Development (IBRD) - Washington, USA. [World Bank Group] http://www.worldbank.org/html/extdr/backgrd/ibrd/

International Bureau of Education (IBE) - Geneva, Switzerland [UNESCO]. http://www.ibe.unesco.org/

International Centre for Genetic Engineering and Biotechnology (ICGEB)  - Trieste, Italy [UNIDO].http://www.icgeb.org/home.html

International Centre for Science and High Technology (ICS) - Trieste, Italy [UNIDO]. http://www.ics.trieste.it/

International Centre for Settlement of Investment Disputes (ICSID) - Washington, USA [World Bank Group]. http://www.worldbank.org/icsid/

Abdus Salam International Centre for Theoretical Physics (ICTP) - Trieste, Italy [UNESCO/IAEA]. http://www.ictp.trieste.it/

International Civil Aviation Organization (ICAO) - Montreal, Canada. http://www.icao.int/

International Civil Service Commission (ICSC) - New York, USA. http://icsc.un.org/rootindex.asp

International Computing Centre (ICC) - Geneva, Switzerland. http://www.unicc.org/Pages/WelcomePage.aspx

International Court of Justice (ICJ) - The Hague, The Netherlands. http://www.icj-cij.org/

International Criminal Tribunal for the Former Yugoslavia (ICTY) - The Hague, The Netherlands. http://www.icty.org/

International Criminal Tribunal for Rwanda (ICTR) - Arusha, Tanzania. http://www.unictr.org/

International Development Association (IDA) - Washington, USA [World Bank Group]. http://www.worldbank.org/ida/

International Finance Corporation (IFC) - Washington, USA [World Bank Group]. http://www.ifc.org/

International Fund for Agricultural Development (IFAD) - Rome, Italy. http://www.ifad.org/

International Institute for Educational Planning (IIEP) - Paris, France [UNESCO]. http://www.unesco.org/iiep/

International Institute on Ageing (INIA) - Valetta, Malta. http://www.inia.org.mt/

International Labour Organization (ILO) - Geneva, Switzerland. http://www.ilo.org/global/lang--en/index.htm

International Maritime Organization (IMO) - London, UK. http://www.imo.org/Pages/home.aspx

International Monetary Fund (IMF) - Washington, USA. http://www.imf.org/external/index.htm

International Seabed Authority (ISA) - Kingston, Jamaica. http://www.isa.org.jm/

International Strategy for Disaster Reduction (ISDR)  - Geneva, Switzerland. http://www.unisdr.org/

International Telecommunication Union (ITU) - Geneva, Switzerland. http://www.itu.int/home/index.html

International Trade Centre (ITC) - Geneva, Switzerland [UNCTAD/WTO]. http://www.intracen.org/

International Training Centre of the ILO (ITC/ILO) - Turin, Italy. http://www.itcilo.it/en

Joint Inspection Unit (JIU) - Geneva, Switzerland. http://www.unjiu.org/

Joint United Nations Programme on HIV/AIDS (UNAIDS) - Geneva, Switzerland. http://www.unaids.org/en/

Multilateral Investment Guarantee Agency (MIGA) - Washington, USA [World Bank Group]. http://www.miga.org/

United Nations Non-Governmental Liaison Service (NGLS) - Geneva, Switzerland and New York, USA. http://www.un-ngls.org/

Office for the Coordination of Humanitarian Affairs (OCHA) - Geneva, Switzerland and New York, USA. http://ochaonline.un.org/

Office for Outer Space Affairs (OOSA) - Vienna, Austria. http://www.oosa.unvienna.org/

Organization for the Prohibition of Chemical Weapons (OPCW) - The Hague, The Netherlands. http://www.opcw.org/

Panel of External Auditors of the United Nations, the Specialized Agencies and the International Atomic Energy Agency - New York, USA. http://www.un.org/en/auditors/panel/

ReliefWeb - Geneva, Switzerland [OCHA]. http://reliefweb.int/

United Nations (UN) - New York, USA. http://www.un.org/

United Nations Atlas of the Oceans - Washington, USA. http://www.oceansatlas.org/index.jsp 

United Nations Board of Auditors - New York, USA. http://www.un.org/auditors/board

United Nations Capital Development Fund - New York, USA. http://www.uncdf.org/en

United Nations Children's Fund (UNICEF) - New York, USA. http://www.unicef.org/

United Nations Commission on International Trade Law (UNCITRAL) - Vienna, Austria. http://www.un.or.at/uncitral/

United Nations Common Supplier Database (UNCSD) - Oslo, Norway. http://www.uncsd.org/

United Nations Compensation Commission (UNCC) - Geneva, Switzerland. http://www.unog.ch/uncc/

United Nations Conference on Trade and Development (UNCTAD) - Geneva, Switzerland. http://www.unctad.org/

United Nations Convention to Combat Desertification (UNCCD) - Bonn, Germany. http://www.unccd.int/

United Nations International Drug Control Programme (UNDCP) (now UNODC)- Vienna, Austria. http://www.undcp.org/

United Nations Development Group (UNDG) - New York, USA. http://www.undg.org/

United Nations Development Programme (UNDP) - New York, USA. http://www.undp.org/content/undp/en/home.html

United Nations Educational, Scientific and Cultural Organization (UNESCO) - Paris, France. http://www.unesco.org/new/en/

United Nations Environment Programme (UNEP) - Nairobi, Kenya. http://www.unep.org/

United Nations Evaluation Group (UNEG) -  New York, USA. http://www.uneval.org/

United Nations Framework Convention on Climate Change (UNFCCC) - Bonn, Germany. http://unfccc.int/2860.php

United Nations Fund for International Partnerships (UNFIP) - New York, USA. http://www.un.org/partnerships/

United Nations Geographic Information Working Group (UNGIWG)  -  New York, USA. http://www.ungiwg.org/

United Nations High Commissioner for Human Rights, Office of the (OHCHR) - Geneva, Switzerland. http://www.unhchr.ch/

United Nations High Commissioner for Refugees, Office of the (UNHCR) - Geneva, Switzerland. http://www.unhcr.org/

United Nations Human Settlements Programme (UN-HABITAT)- Nairobi, Kenya. http://www.unhabitat.org/categories.asp?catid=9

United Nations Industrial Development Organization (UNIDO) - Vienna, Austria. http://www.unido.org/

United Nations Information and Communication Technologies Task Force (UNICT TF)  - New York, USA. http://www.unicttaskforce.org/index.asp

United Nations Institute for Disarmament Research (UNIDIR) - Geneva, Switzerland. http://www.unog.ch/unidir/

United Nations Institute for Training and Research (UNITAR) - Geneva, Switzerland. http://www.unitar.org/

United Nations International School (UNIS) - New York, USA. http://www.unis.org/

United Nations Interregional Crime and Justice Research Institute (UNICRI) - Rome, Italy. http://www.unicri.it/

United Nations Joint Staff Pension Fund (UNJSPF) - New York, USA. http://www.unjspf.org/UNJSPF_Web/

United Nations Mine Action Service - New York, USA. http://www.mineaction.org/

United Nations Office at Geneva (UNOG) - Geneva, Switzerland. http://www.unog.ch/

United Nations Office at Nairobi (UNON) - Nairobi, Kenya. http://www.unon.org/

United Nations Office at Vienna (UNOV) - Vienna, Austria. http://www.unvienna.org/

United Nations Office for Project Services (UNOPS) - New York, USA. http://www.unops.org/

United Nations Population Fund (UNFPA) - New York, USA. http://www.unfpa.org/public/

United Nations Postal Administration (UNPA) - Vienna, Austria. http://www.unpa.unvienna.org/

United Nations Relief and Works Agency for Palestine Refugees in the Near East (UNRWA) - Gaza, Gaza Strip and Amman, Jordan. http://www.unrwa.org/

United Nations Research Institute for Social Development (UNRISD) - Geneva, Switzerland. http://www.unrisd.org/

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United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) - Vienna, Austria. http://www.unscear.org/

UN System Network on Rural Development and Food Security -  Rome, Italy [FAO/IFAD]. http://www.rdfs.net/index.htm

United Nations System Staff College (UNSSC) - Turin, Italy. http://www.unssc.org/web1/

United Nations University (UNU) - Tokyo, Japan. http://www.unu.edu/

United Nations Volunteers (UNV) - Bonn, Germany. http://www.unv.org/

UN Women - United Nations Entity for Gender Equality and the Empowerment of Women. http://www.unwomen.org/

United Nations World Tourism Organization (UNWTO) - Madrid, Spain. http://www.world-tourism.org/

Universal Postal Union (UPU) - Bern, Switzerland. http://www.upu.int/en.html

WomenWatch - New York, USA. http://www.un.org/womenwatch/

World Bank Group - Washington, USA. http://www.worldbank.org/

World Food Programme (WFP) - Rome, Italy. http://www.wfp.org/

World Health Organization (WHO) - Geneva, Switzerland. http://www.who.int/

World Intellectual Property Organization (WIPO) - Geneva, Switzerland. http://www.wipo.int/portal/index.html.en

World Meteorological Organization (WMO) - Geneva, Switzerland. http://www.wmo.int/pages/index_en.html 

World Trade Organization (WTO) - Geneva, Switzerland. http://www.wto.org/ 

World Volunteer Web - Bonn, Germany [UNV]. http://www.worldvolunteerweb.org/