The United Nations Development Programme works in nearly 170 countries and territories,helping to eradicate poverty, reduce inequalities and build resilience so countries can sustain progress. UNDP also plays a critical role in helping countries achieve the Sustainable Development Goals

The International Organization for Migration works to help ensure the orderly and humane management of migration, to promote international cooperation on migration issues, to assist in the search for practical solutions to migration problems and to provide humanitarian assistance to migrants in need, including refugees and internally displaced people.

The Organization for the Prohition of Chemical Weapons is the implementing body of the Chemical Weapons Convention (CWC), which entered into force in 1997. OPCW Member States work together to achieve a world free of chemical weapons.

The Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty promotes the Comprehensive Nuclear-Test-Ban Treaty (which is not yet in force) and the build-up of the verification regime so that it is operational when the Treaty enters into force.

The World Trade Organization is a forum for governments to negotiate trade agreements, and a place where member governments try to sort out the trade problems they face with each other.

The International Atomic Energy Agency is the world's centre for cooperation in the nuclear field. The Agency works with its Member States and multiple partners worldwide to promote the safe, secure and peaceful use of nuclear technologies.

The United Nations Office for Project Services is an operational arm of the United Nations, supporting the successful implementation of its partners' peacebuilding, humanitarian and development projects around the world.

The United Nations Office for Disaster Reduction serves as the focal point in the United Nations system for the coordination of disaster reduction.

The Joint United Nations Programme on HIV/AIDS is co-sponsored by 10 UN system agencies: UNHCR, UNICEF, WFP, UNDP, UNFPA, UNODC, the ILO, UNESCO, WHO and the World Bank and has ten goals related to stopping and reversing the spread of HIV/AIDS.

The Univeral Postal Union is the primary forum for cooperation between postal sector players. It helps to ensure a truly universal network of up-to-date products and services.