Dr Gero Ziegenhorn

partner¹

Career

Studied law in Würzburg, Leuven and Lausanne. 2003 first State examination, 2007 second State examination. 2008 doctoral degree with Prof Dr Dr Udo Di Fabio. Research assistant at the Chair of Udo Di Fabio, Institute for Public Law of Bonn University in 2003–2005, focus on German and European constitutional law.

Joined the firm in 2008.

Practice

Data protection law, public economic law, Money Laundering Law, European law.

Awarded Law Firm of the Year 2026 for Technology and Media, together with the digital law Team. Listed as top attorney in data protection law (2019) by WirtschaftsWoche and listed by Best Lawyers/Handelsblatt in “Germany's best lawyers” in Data Security and Privacy Law and Public Law (since 2021). Recognized with the Legal 500 Award as “Public Law Team of the Year 2026”.

Member of the International Association of Privacy Professionals (IAPP), member of the Working Group for Administrative Law of the German Bar Association, Berlin – Brandenburg – Mecklenburg‑Western Pomerania Regional Group.

Lecturer for data protection law at the FernUniversität in Hagen.

Comprehensive data protection advice and representation for companies and corporate groups such as Coca‑Cola Europacific Partners, associations such as the Federal Association of German Debt Collection Companies (BDIU), and scientific organizations; Advice and representation regarding Binding Corporate Rules and Codes of Conduct under the GDPR, data protection audits, and certifications; in‑house data protection training; advice and representation in administrative litigation with data protection supervisory authorities; Advising various European institutions, federal, and state authorities on data protection law; extensive litigation experience, particularly before administrative courts in data protection disputes.