Jasper Siems

Martin Schellenberg is a top attorney recognized by Best Lawyers in the practice area(s) of Public Law and Public Private Partnership. Martin, 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 Martin is held by other top lawyers in the same geographic and legal practice area.

Thomas Rieck is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Thomas, 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 Thomas is held by other top lawyers in the same geographic and legal practice area.

Andreas Wolowski is a top attorney recognized by Best Lawyers in the practice area(s) of Public Law. Andreas, who practices law in Hamburg, Germany, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Andreas is held by other top lawyers in the same geographic and legal practice area.

Maria von Rosen is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Maria, 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 Maria is held by other top lawyers in the same geographic and legal practice area.

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 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 ...

2011 Arbitrator of the Independent Film & Television Alliance (IFTA) 2008 Board-Certified Attorney for Intellectual Property Law (Fachanwalt für gewerblichen Rechtsschutz) 2007 Board-Certified Attorney for Copyright and Media Law (Fachanwalt für Urheber- und Medienrecht) 1998 New York Bar Exam (Attorney-at-Law) LL.M. in Trade Regulations, New York University (NYU), USA 1997 Second State Examination in Law, Regional Court of Appeals Hamburg (legal trainee at German Embassy Singap...

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...

Nina Springer is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Nina, 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 Nina is held by other top lawyers in the same geographic and legal practice area.

Dieter Schwampe is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law, Maritime Law and Transportation Law. Dieter, who practices law in Hamburg, Germany, has been recognized since 2009. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Dieter is held by other top lawyers in the same geographic and legal practice area.