Lena-Sophie Müller is committed to shaping the digital transformation in collaboration with policymakers and businesses for the benefit of all people. She highlights the implications of new technologies for society, participates in expert discussions on various panels, and gives presentations on topics related to digital transformation. Since 2014, she has led the non-profit initiative D21 eV, Germany's largest network of policymakers and businesses for the digital society, and since June 2025, she has served as its CEO. She advises various federal ministers in advisory roles, including Federal Minister of Defense Boris Pistorius on the Digital Council of the Federal Ministry of Defense (BMVg) (since 2019). She also serves on the Board of Trustees of the Fraunhofer Institute for Open Communication Systems and is a member of the Digital Council of the Confederation of German Employers' Associations (BDA) (since 2019). From 2018 to 2020, Müller was an expert advisor to the Enquete Commission on Artificial Intelligence of the German Bundestag. Businesspunk magazine ranked them number 1 on its watchlist in the Social & Policy category (2021), and Capital magazine included them in its top 40 under 40 list in Germany.
Prior to joining the D21 Initiative, she worked as a researcher at the Fraunhofer Institute FOKUS in Berlin from 2008, where she led numerous administrative modernization and e-government projects with the private sector and public administration at the EU, federal, state, and local levels. She headed the Center for Interoperability there from 2010. Ms. Müller studied political science in Sydney, Australia, and Potsdam.
The D21 Initiative is Germany's largest partnership between politics, business, science, and civil society for the digital society. The non-profit association comprises a cross-party and cross-sector network of approximately 200 member companies and institutions (including those from science and civil society) as well as political partners from the federal, state, and local levels. Its goal is to shape the digital society with pioneering non-profit projects and to ensure Germany's social and economic success in the digital world of the 21st century.