United Nations Office at Vienna (UNOV): one of the four headquarters of the United Nations. Provides common services to the VIC-based organizations. The Director-General of UNOV represents the Secretary-General in dealings with the host country and diplomatic missions in Vienna.

International Atomic Energy Agency (IAEA): world's central intergovernmental forum for scientific and technical cooperation in the nuclear field. It is also the international inspectorate for the application of nuclear safeguards and verification measures covering civilian nuclear programmes. More...

Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO PrepCom): preparations for the implementation of the Comprehensive Nuclear-Test-Ban Treaty (CTBT), which bans all nuclear weapons test explosions. More...

The United Nations Industrial Development Organization (UNIDO): specialized agency helping developing countries alleviate poverty by enhancing the productive capacities of their small and medium-sized industries. More...

The United Nations Office on Drugs and Crime (UNODC): from headquarters at the Vienna International Centre and through a network of field offices around the world, UNODC helps Member States to reduce their vulnerability to drugs and crime, and to promote security and justice for all. More…

The United Nations Office for Outer Space Affairs (UNOOSA): promotes international cooperation in the peaceful uses of outer space for social and economic development, particularly for the benefit of developing countries. More...

The International Commission for the Protection of the Danube River (ICPDR): promotes and coordinates sustainable and equitable water management for the benefit of the Danube River Basin countries. More...

International Narcotic Control Board (INCB): independent expert body to promote Government compliance with the provisions of the international drug control conventions. More...

The United Nations Environment Programme (UNEP): voice for the environment in the United Nations system with service to the region. More...

The United Nations High Commissioner for Refugees (UNHCR): monitors the implementation of the relevant asylum laws in Austria according to the Geneva Refugee Convention and makes suggestions on refugee related questions to the authorities. More...

United Nations Information Service (UNIS): provides public information support and promotional services to the substantive programmes of the United Nations based in Vienna. It is part of a network of 63 UN Information Centres around the world. More...

The United Nations Commission on International Trade Law (UNCITRAL): promotes world trade by working to harmonize the relevant national regulations. More...

The United Nations Postal Administration (UNPA): issues United Nations stamps in Vienna visualizing subjects such as human rights, the environment, endangered species and peace. More...

The United Nations Register of Damage Caused by the Construction of the Wall in the Occupied Palestinian Territory (UNRoD): keeps documentary record of the damage resulting from the construction of the Wall by Israel in the Occupied Palestinian Territory, including in and around East Jerusalem. More...

United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR): assesses and reports on levels and effects of exposure to ionizing radiation. More...