The United Nations Office for Project Services (UNOPS) is an operational arm of the United Nations, dedicated to implementing projects for the United Nations System, international financial institutions, governments and other partners around the world.

(from wikipedia)

The United Nations Office for the Coordination of Humanitarian Affairs (OCHA) is a United Nations (UN) body formed in December 1991 by General Assembly Resolution 46/182. The resolution was designed to strengthen the UN's response to complex emergencies and natural disasters.

The United Nations Office on Drugs and Crime (UNODC; French: Office des Nations unies contre la drogue et le crime) is a United Nations office that was established in 1997 as the Office for Drug Control and Crime Prevention by combining the United Nations International Drug Control Program (UNDCP) and the Crime Prevention and Criminal Justice Division in the United Nations Office at Vienna.

he Peacebuilding Support Office (PBSO) was established to assist and support the Peacebuilding Commission (PBC) with strategic advice and policy guidance, administer the Peacebuilding Fund (PBF) and to support the Secretary-General in coordinating United Nations agencies in their peacebuilding efforts.

UNFPA is the lead UN agency for delivering a world where every pregnancy is wanted, every childbirth is safe and every young person's potential is fulfilled.

Our Mission

The United Nations Research Institute for Social Development (UNRISD) is an autonomous research institute within the UN system that undertakes multidisciplinary research and policy analysis on the social dimensions of contemporary development issues.

The United Nations Statistics Division is committed to the advancement of the global statistical system. We compile and disseminate global statistical information, develop standards and norms for statistical activities, and support countries' efforts to strengthen their national statistical systems.

The UN Sustainable Development Solutions Network (SDSN) has been operating since 2012 under the auspices of the UN Secretary-General. SDSN mobilizes global scientific and technological expertise to promote practical solutions for sustainable development, including the implementation of the Sustainable Development Goals (SDGs) and the Paris Climate Agreement.

The World Institute for Development Economics Research began operations in 1985 in Helsinki, Finland, as the first research centre of the United Nations University.

United Nations Water coordinates the efforts of United Nations entities and international organizations working on water and sanitation issues. ″Over 30 UN organizations carry out water and sanitation programmes, reflecting the fact that water issues run through all of the UN’s main focus areas.  

Formerly known as the World Commission on Environment and Development (WCED), the mission of the Brundtland Commission is to unite countries to pursue sustainable development together. The Chairperson of the Commission, Gro Harlem Brundtland, was appointed by United Nations Secretary-General Javier Pérez de Cuéllar in December 1983.

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