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The GRENKE AG Supervisory Board

The GRENKE Supervisory Board advises and monitors the Board of Directors. 

Prof. Dr. Ernst-Moritz Lipp


Professor Lipp is an economist and a recognised figure in the financial sector who served on the Board of Directors at Dresdner Bank for several years.


Deputy Chairman

Jens Rönnberg was appointed to the Supervisory Board of GRENKE AG in November 2019 on the basis of his expertise as a tax consultant and auditor.



Norbert Freisleben has extensive knowledge of German and international accounting as well as in the preparation, auditing, and analysis of corporate financial statements of various industries. He combines wide-ranging business know-how with entrepreneurial experience in establishing medium-sized companies in his work as a supervisory board member.

Nils Kröber


Nils Kröber was appointed as a Member to the Supervisory Board of GRENKE AG due to his many years of expertise in national and international tax law. He provides advice focusing on tax law to international and national companies, entrepreneurs and private entities. At the same time, he has many years of experience in advising large family-owned companies.

Dr. Konstantin Nikolaus Maria Mettenheimer


Dr Konstantin Mettenheimer was elected to the Supervisory Board of GRENKE AG due to his expertise as a lawyer and tax advisor in a global law firm spanning several decades. He has a wealth of successful management experience in international management positions with the same firm. He holds an EU-wide licence to manage financial services providers.

Dr. Ljiljana Mitic


Dr. Ljiljana Mitic has extensive expertise in information technology and financial services. She also provides many years of experience in international management positions as well as comprehensive digitalisation know-how from her work with technology start-ups to her Supervisory Board activities at GRENKE AG.