Jacob Keyl

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...

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.

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...

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.

Dr. Andrea Kröpelin is a partner and certified specialist in employment law at Möhrle Happ Luther . She advises national and international clients on all aspects of individual and collective employment law, including representation in court. Some of the key areas of her work are legal and strategic advice relating to restructuring and M&A projects, company co-determination law, global mobility and employee data protection. She also has a wide range of experience in advising phar...

Gül Pinar has been advising and defending clients exclusively in the field of criminal law for over 25 years. She draws on a high degree of specialization and decades of forensic experience from numerous major trials. These include proceedings before the Higher Regional Courts, oral hearings before the Federal Court of Justice, constitutional complaints, and proceedings before parliamentary investigative committees. Her experience as a criminal defense attorney in the fight for the right...

Sebastian Jungemeyer is a top attorney recognized by Best Lawyers in the practice area(s) of Arbitration and Mediation. Sebastian, 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 Sebastian is held by other top lawyers in the same geographic and legal practice area.

Sonja Schulz was born in Bremen in 1976. She studied law in Münster and Leuven, Belgium. She completed her practical training in Münster, Washington D.C. and Brussels. In addition, she completed an education in Anglo-American law, a subject-specific foreign language training, postgraduate studies in European law and training in change management. In 2003 she received a Master of European and Comparative Law from the University of Ghent, Belgium. Since 2006, Sonja Schulz has been a l...

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

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