Christian Pitzal

Born in Hamburg in 1963, Jan Dietze studied law in Passau and at King’s College in London, UK, where he obtained his Diploma of Legal Studies. He also studied in Freiburg and at Europa-Kolleg in Bruges, Belgium, where he obtained the Diplôme D’Hautes Études Européennes. Jan Dietze has been a lawyer at ZENK since 1995. His practice focuses on corporate and commercial law and M&A. He also specializes in antitrust law and compliance. Mr. Dietze is a member of ...

Born in Kiel Victoria-Luise Vollstedt studied at the University of Freiburg im Breisgau and the University of Hamburg from 2004-2009, passing her first state examination there in 2009. She completed her legal clerkship at the public prosecutor’s office, the District Court of Lübeck, the City of Ahrensburg and at several medium-sized law firms in Hamburg, where she focused on civil law. She passed her second state licensing examination in 2011 and has been a lawyer at ZENK since 201...

John-Patrick Bischoff is a top attorney recognized by Best Lawyers in the practice area(s) of Mergers and Acquisitions Law. John-Patrick, who practices law in Hamburg, Germany, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John-Patrick is held by other top lawyers in the same geographic and legal practice area.

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...

Marc Odebrecht is a top attorney recognized by Best Lawyers in the practice area(s) of Restructuring and Insolvency Law. Marc, who practices law in Hamburg, Germany, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marc is held by other top lawyers in the same geographic and legal practice area.

Lawyer Partner

Frau Prof. Dr. Eva Vonau ist nicht nur Fachanwältin für Urheber- und Medienrecht sowie Fachanwältin für IT-Recht, sondern hat auch eine Ausbildung zur „Mediengestalterin Bild und Ton“ absolviert und ist Professorin für Internet-, Medien- und Datenschutzrecht. Durch diese Kombination aus rechtswissenschaftlicher Expertise und praktsicher Erfahrung im Medienbereich bringt sie einen einzigartigen Blickwinkel auf medien-, technik- und kreativitätsbezogene...

Lawyer, Accredited Specialist in Construction and the Law of Governing Architects Managing Partner

Anne Schöning is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Anne, 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 Anne is held by other top lawyers in the same geographic and legal practice area.

Stefan Bretthauer is a top attorney recognized by Best Lawyers in the practice area(s) of Competition / Antitrust Law. Stefan, who practices law in Hamburg, Germany, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stefan is held by other top lawyers in the same geographic and legal practice area.