Sebastian Jungemeyer

Dominik Heimberg specializes in corporate/commercial litigation, advising companies and entrepreneurs on matters of general business law, capital investment law and regulatory law. One focus of his practice is litigating cases in the aforementioned areas before courts of law and arbitration courts.

Dr Menso Engelmann has been practising as a lawyer in the field of corporate law and M&A since 2008. He advises private individuals, strategic and financial investors, private equity funds, family businesses, joint ventures, and listed companies on all aspects of corporate transactions. He also provides guidance on transactions in the context of corporate crises and restructurings under transformation law, as well as on real estate transactions. In corporate law, his focus is on stock cor...

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

Born in Wesel in 1961, Dr. Ralf Hüting studied law in Bonn and has worked as a lawyer since 1992. In 1996, he received his doctorate with a thesis on “The Effect of Regulatory Tolerance in Environmental Criminal Law”. Dr. Hüting advises and represents commercial enterprises, federal & state ministries, supervisory authorities, cities, municipalities and associations, particularly on cross-jurisdictional projects such as the construction or modernization of industrial...

Thomas Rieck is a lawyer recognized by Best Lawyers in the practice area of Corporate Law. Thomas practices law in Hamburg, Germany Best Lawyers has recognized Thomas Rieck since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Thomas Rieck is held by other lawyers.

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 and is partner with ZENK. His practice focuses on corporate and commercial law and M&A. He also specializes in antitrust law and compliance. M...

Born in Rheda-Wiedenbrück in 1967, Dr. Henrik Nacke studied law in Münster. During his legal clerkship and dissertation period, he worked as a research assistant at the Chair for Public Law, International Law and European Union Law at the University of Münster. In 1999, he obtained a doctorate”on the subject of “Protection against Dismissal in Corporate Transformations”, during which he was supported by the State of North Rhine-Westphalia’s fund for high...

Arne Schmidt is a lawyer recognized by Best Lawyers in the practice areas of Litigation, Restructuring and Insolvency Law and Tax Law. Arne practices law in Hamburg, Germany Best Lawyers has recognized Arne Schmidt since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Arne Schmidt is held by other lawyers.

John-Patrick Bischoff is a lawyer recognized by Best Lawyers in the practice area of Mergers and Acquisitions Law. John-Patrick practices law in Hamburg, Germany Best Lawyers has recognized John-Patrick Bischoff since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which John-Patrick Bischoff is held by other lawyers.