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Under the political leadership of Permanent Secretary Sawsan Chebli, a 15-member team translates Berlin’s international relations into action in the Senate Chancellery’s Division IV B.

The division head, Barbara Berninger, is also Regional Secretary for Europe in Metropolis, the world’s largest city network.

Responsibilities in the division for international relations are divided by region. The division’s primary task is to maintain a network of stakeholders both in Berlin and in each of Berlin’s partner cities, to position Berlin as a leading force in multilateral networks like Metropolis, U 20, and C 40, and to represent Berlin’s interests in global negotiations.

The online platform USE – Urban Sustainability Exchange, used worldwide to advance sustainable metropolitan development, was developed by Berlin’s Metropolis team and is still being managed here. This platform can be used free of charge by people from every continent.
Along with multilateral collaboration, bilateral cooperation with Berlin’s 17 partner cities plays a central role. The division also works with the diplomatic missions based in Berlin and is responsible for armed forces affairs.
Berlin is involved in international research on all essential urban development issues and either heads or participates in various projects, often in cooperation with civil society organizations.

In 2021, the themes of civic engagement and international relations will be intertwined when Berlin becomes the European Volunteering Capital. The commitment to freedom and democracy characterize the work in both areas.

You can find the email address and telephone number of the staff member responsible for a particular city partnership on the page of that partnership.

More informations about the senate chancellery and the organizational chart you can find at