Founding Chair of the Board of the Event Horizon Telescope Collaboration (Chair 2017-2020)

Coordinator of RadioNet – a project funded by the European Union under Horizon 2020

Founding Director and Speaker of the International Max-Planck-Research School (IMPRS) for Astronomy and Astrophysics, at the Universities of Bonn and Cologne.

Board of Directors of the European VLBI Network

Council of the Joint Institute for VLBI European Research Infrastructure

RadioAstron International Science Council