 In 2003, Mühlenbruch was a member of the Steering Committee for the Study on Networks of Women Scientists in Brussels which confirmed the need of a network for women scientists at European level.Mühlenbruch was Managing Director of the Center of Excellence Women and Science (CEWS) in Bonn from 2000 until 2005, managing several research projects funded by the German government and the EU in the field of gender equality in science.Under her leadership, CEWS drafted the winning proposal for the establishment of the European Platform of Women Scientists and signed the contract with the European Commission in 2005.