Marlen Vesper-Gräske

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...

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...

Arnd Weisner is a top attorney recognized by Best Lawyers in the practice area(s) of Capital Markets Law, Corporate Law, Litigation and Mergers and Acquisitions Law. Arnd, 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 Arnd is held by other top lawyers in the same geographic and legal practice area.

Born in Bremerhaven in 1984, Dr. Lisa Feuerhake studied German and Anglo-American law in Münster. After passing her first state licensing examination, Dr. Feuerhake completed a doctorate on the subject of “Competition Law in England”. As part of her doctorate, she spent a research semester at the University of Oxford, UK, for which she received a German Academic Exchange Service (DAAD) scholarship. From 2010-2012, she completed her legal clerkship in Hamburg, with posts abroa...

Listed in "Best Lawyers Germany" for Public Law (Ranking Handelsblatt/Best Lawyers 2021)

Ronald Steiling is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law, Environmental Law and Public Law. Ronald, 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 Ronald is held by other top lawyers in the same geographic and legal practice area.

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.

Born in Göttingen in 1974, Dr. Stefanie Hartwig studied law in Kiel and Liège from 1994 to 1998 and completed her postgraduate studies in business law in Hamburg. Thereafter, she worked as a trainee lawyer in Hamburg and New York and as a research associate at the University of Hamburg. She completed her doctorate in 2002. Ms. Hartwig has been working as a lawyer since 2003, initially in a major international law firm and since 2005 at ZENK. Since 2007, she has also been a special...

Dr Justus Jansen (Lawyer of the Year Litigation, Hamburg, 2020, Lawyer of the Year Trade Law, Hamburg, 2022) is heading the Dispute Resolution practice group at GSK Stockmann since 2014. The team has 23 members and is thus considered one of the largest dispute resolution teams in Germany with widely recognised expertise and track record in commercial, banking & finance, energy, international plant engineering and corporate disputes as well as in post-M&A disputes. In addition, investm...

Dr Andreas Freitag has been working as a lawyer in Hamburg with a focus on intellectual property and IT law since 1993. He advises and represents national and international clients with regard to the development, exploitation and defence of their intellectual property rights and licensing strategies, in particular in the areas of fashion (design), cosmetics, advertising, software development and social media. He has particular experience in supporting cooperations and projects relating to dev...