Daniela is widely regarded as one of the leading competition lawyers in Germany. She has 20+ years of experience advising on all aspects of European and German competition law, including merger control, cartel proceedings, antitrust compliance and abuse of dominance cases. She has extensive experience in foreign investment control and EU foreign subsidies and represented clients in merger control proceedings before the European Commission and the German Federal Cartel Office (Bundeskartellamt) as well as in foreign investment control proceedings before the German Federal Ministry for Economic Affairs and Climate Action.
Daniela co-heads the firm’s global chemicals sector group and has particular expertise in the automotive, energy, healthcare, IT, and telecommunications sectors.
She teaches competition law at the University of Halle and is also a co-editor of the Frankfurt Commentary on Competition Law and the journal WIRTSCHAFT und WETTBEWERB. For more than ten years, she has been a Non-Governmental Advisor in the International Competition Network (ICN) and, since December 2018, she has been a board member of the Studienvereinigung Kartellrecht. Additionally, she was a member of the Commission on Competition Law 4.0 of the Federal Ministry for Economic Affairs and Climate Action.
Daniela is rated as one of the leading individuals in the area Competition/European Law (Chambers Germany 2025, Band 1). One client enthuses: "Daniela Seeliger is one of the best lawyers in Germany for these matters." (Chambers Germany 2025, Competition/European Law).
Daniela has advised on many high-profile cases both in the antitrust and merger control spheres. Cases and clients which can be disclosed include representing/advising:
Daniela is ranked among the best 37 competition lawyers in Germany and is a national government expert appointed by Bundeskartellamt, advising on proposed legislation and the impact on business of laws and regulations.
She is board member of the Studienvereinigung Kartellrecht (Antitrust Lawyers Association) since 2008 and was member of the Commission “Competition Law 4.0” of the Federal Ministry for Economic Affairs and Climate Action.
In 2015, Daniela was awarded the title of professor by the Martin Luther University in Halle in recognition of her long-standing teaching engagement in European and German competition law.
She assisted with compiling the United Nations’ Guide for General Counsel on Corporate Sustainability, an initiative led by Tom Shropshire.
Daniela studied law at the Universities in Bonn and Lausanne and holds a master’s in law from King’s College, London and a doctorate from the University of Cologne.
She speaks German, English, French and Swedish.
Daniela publishes widely on competition law and regularly presents on different topics including cartel investigations, compliance and risk management and developments and trends. Her publications include:
Admissions