Justus Herrlinger

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...

Born in Helgoland in 1966, Dr. Carsten Oelrichs trained as an industrial business administrator before going on to study law at the University of Hamburg, where he also worked as a research assistant at the Chair of Commercial, Shipping and Business Law. He received his doctorate in 1998, with a thesis on “Creditor Participation and Voting Bans in New Insolvency Proceedings”. Dr. Oelrichs has been a lawyer at ZENK since 1998. Dr. Oelrichs is partner with ZENK. For several years ru...

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.

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. ...

Henning Wendt is a lawyer recognized by Best Lawyers in the practice area of Public Law. Henning practices law in Hamburg, Germany Best Lawyers has recognized Henning Wendt since 2027. 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 Henning Wendt is held by other lawyers.

Jan Dreyer is a lawyer recognized by Best Lawyers in the practice areas of Maritime Law and Transportation Law. Jan practices law in Hamburg, Germany Best Lawyers has recognized Jan Dreyer since 2009. 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 Jan Dreyer is held by other lawyers.

Born in Lübeck in 1974, Dr. Peer Feldhahn’s career as a lawyer began in 2004. He has been a specialist in construction and architectural law since 2009.He spent the first 10 years of his career at a renowned construction law firm and the following five years as a partner in a commercial law firm. Since January 2019, Dr. Peer Feldhahn has been supporting the real estate & construction division of ZENK Rechtsanwälte. He advises clients on major projects in the contract draft...

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...