Daja H. Böhlhoff

Born in Hamburg in 1962, Birgitta Weihrich studied law in Hamburg. After completing her legal clerkship – including a post at the Directorate-General for Competition of the European Commission in Brussels and Speyer – she was admitted to the bar in 1992. After spending a number of years in a commercial law firm in Northern Germany and as a legal advisor and authorized signatory of an insurance company, she joined ZENK in 2018. She has many years’ experience in both a wide ra...

Lawyer Partner

Jan Erik Spangenberg specialises in dispute resolution, litigation and arbitration. He acts both as counsel and as arbitrator. He assists companies, governments and individuals in navigating complex disputes, in particular international commercial and investment arbitrations. He also advises governments and investors in relation to foreign investments and public international law. Jan Erik Spangenberg has successfully represented clients in many high stakes arbitrations (including ICC, DIS, S...

Dr Jan Christoph Mosch, M.B.A., LL.M. specialises in corporate law, corporate contract law, M&A / real estate transactions and asset succession. Jan advises medium-sized companies, entrepreneurs and high-net-worth private individuals. Jan has always been enthusiastic about the complex issues of corporate law and the transaction business and has consistently focussed both his legal training and his work as a lawyer on these topics. He combines this experience with an entrepreneurial mindse...

Johanna Jülicher-Sieg is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense. Johanna, who practices law in Hamburg, Germany, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Johanna is held by other top lawyers in the same geographic and legal practice area.

Volker Voth is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Volker, who practices law in Hamburg, Germany, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Volker is held by other top lawyers in the same geographic and legal practice area.

Christian was born in Hamburg in 1963. After his first state examination at the University of Hamburg he spent his legal clerkship, among others, with the Federal Cartel Office in Berlin, the Higher Regional Court of Hamburg, a law firm in Los Angeles and the German American Chamber of Commerce in Chicago. In 1993, he received his doctorate at the University of Hamburg (PhD Supervisor: Prof. Dr. Dr. h.c. Ernst-Joachim Mestmäcker, Max Planck Institute for Comparative and International Pri...

Joachim Jung is a top attorney recognized by Best Lawyers in the practice area(s) of Competition / Antitrust Law. Joachim, who practices law in Hamburg, Germany, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joachim is held by other top lawyers in the same geographic and legal practice area.

Born in Göttingen in 1974, Dr. Stefanie Hartwig studied law in Kiel and Liège from 1994 to 1998 and completed her postgraduate studies in business law in Hamburg. Thereafter, she worked as a trainee lawyer in Hamburg and New York and as a research associate at the University of Hamburg. She completed her doctorate in 2002. Ms. Hartwig has been working as a lawyer since 2003, initially in a major international law firm and since 2005 at ZENK. Since 2007, she has also been a special...

Uwe Eppler is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Uwe, who practices law in Hamburg, Germany, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Uwe is held by other top lawyers in the same geographic and legal practice area.