Helmut Bergmann

Henning Sieber focuses his practice on real estate and corporate law. He regularly advises on real estate acquisitions and sales, including the structuring and financing of real estate transactions, and has broad experience in advising in particular institutional clients on transactions in Germany and abroad. Henning is also experienced in the restructuring of real estate investments, including advising on restructuring and refinancing of distressed investments as well as on real estate inves...

Born in Duisburg in 1974, Dr. Kostja von Keitz studied law in Düsseldorf. He received his doctorate in European nature conservation and national administrative procedural law in 2005, with a thesis on the subject of “The Legal Protection of Private Individuals against Special Areas of Conservation”. He began his career as a lawyer in 2005, working initially for a major international law firm. He became a specialist in administrative law 2008 and joined ZENK in 2009. He has be...

Carsten Gerlach is a top attorney recognized by Best Lawyers in the practice area(s) of Information Technology Law. Carsten, who practices law in Berlin, Germany, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Carsten is held by other top lawyers in the same geographic and legal practice area.

Friederike Engelmann-Matz is a top attorney recognized by Best Lawyers in the practice area(s) of Restructuring and Insolvency Law. Friederike, who practices law in Berlin, Germany, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Friederike is held by other top lawyers in the same geographic and legal practice area.

Claudia Gehricke, born 1986 in Berlin, studied law at the European University Viadrina in Frankfurt/Oder and at the University of Essex, UK. She completed her legal traineeship in Berlin at the Court of Appeal and was already working at ZENK’s Berlin office during her traineeship. Further stages of her legal traineeship took her to the Federal Ministry of Economics and an international business enterprise, among others. Claudia Gehricke has been a lawyer at ZENK since 2015. She is a sal...

Martin Seyfarth chairs the German Public Policy Practice and co-chairs the German Energy Industry Group. He advises national and international companies on transactions, privatizations and large strategic industry and branch projects. With his extensive experience and knowledge, Mr. Seyfarth has successfully represented clients in a variety of complex deals in the corporate sector. Mr. Seyfarth has been the managing partner of the Berlin office since 2009.

Christoph Riese is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law, Public Law and Public Private Partnership. Christoph, who practices law in Berlin, Germany, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christoph is held by other top lawyers in the same geographic and legal practice area.

Henrik Armah is a shareholder and Co-Chair of the German Corporate/M&A Group. He advises international and domestic clients on M&A transactions, joint ventures and corporate transformations as well as all general matters of corporate law. He specializes in cross border transactions (buy side and sell side). Henrik’s clients include industry players as well as private equity funds, strategic investors and venture capitalists. As a recognized and highly experienced lawyer in the t...

Antje Baumbach is Partner at BEITEN BURKHARDT's Berlin office and member of the Corporate / M&A practice group. Her area of expertise comprises advice on energy law and the energy industry. She advises her clients with a particular focus on energy law, including regulatory issues, as well as antitrust and competition law. She also has extensive experience in contract law and the law on standard terms and conditions. She represents our clients' interests in contract negotiations, before re...

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