Jörn Twisselmann

Born in Pirmasens in 1973, Florian Werner studied civil engineering with a focus on structural engineering in Hamburg from 1994-1999. After several years as construction and project manager for a medium-sized foundation engineering company in Berlin and northern Germany, he came to Hamburg to study law. Mr. Werner has been a lawyer at ZENK since 2008 and a specialist in construction and architectural law since 2011. He is a mediator for construction disputes. Mr. Werner is partner with ZENK. ...

Askan Deutsch advises and represents German and international clients in all areas of intellectual property law. He has extensive experience in competition, trade mark, design, copyright and domain law, as well as in patent, utility model, IT and data protection law. He supports companies in developing trade mark strategies, designing advertising measures and websites, and enforcing or defending preliminary injunctions and legal proceedings, including before the German Patent and Trade Mark O...

Prof. Dr. Stefanie Hartwig, born in Göttingen in 1974, studied law in Kiel and Liège from 1994 to 1998 and then completed postgraduate studies in commercial law in Hamburg. After completing her studies, she was a trainee lawyer in Hamburg and New York and a research assistant at the University of Hamburg. She completed her doctorate in 2002. Ms. Hartwig has been working as a lawyer since 2003. She initially worked in a major international law firm and later joined ZENK. She has al...

Lawyer Partner

Johanna Jülicher-Sieg is a lawyer recognized by Best Lawyers in the practice area of Criminal Defense. Johanna practices law in Hamburg, Germany Best Lawyers has recognized Johanna Jülicher-Sieg since 2026. 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 Johanna Jülicher-Sieg is held by other lawyers.

Corinna Struck is a lawyer recognized by Best Lawyers in the practice area of Corporate Law. Corinna practices law in Hamburg, Germany Best Lawyers has recognized Corinna Struck 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 Corinna Struck is held by other lawyers.

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 Banking and Capital Markets Partner

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...

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...