Anna-Sophie Hollenders

Ulrich Grau is a top attorney recognized by Best Lawyers in the practice area(s) of Biotechnology Law and Life Sciences Practice, Health Care Law and Pharmaceuticals Law. Ulrich, who practices law in Berlin, Germany, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ulrich is held by other top lawyers in the same geographic and legal practice area.

Olga Braeuer is a counsel in the Litigation/Controversy Department, and a member of the International Arbitration Practice Group. She joined the firm in 2010 and focuses on international arbitration and dispute resolution. Ms. Braeuer focuses on international arbitration and dispute resolution. She has represented clients in complex multi-jurisdictional disputes governed by a broad variety of substantive and procedural laws, of both civil and common law jurisdictions. She has acted as counsel...

Born in Brühl in 1965, Dr. Rolf Zeißig studied law in Bonn, Hamburg and Berlin. He was a research assistant at the Department of Labor and Social Law at the University of Potsdam and obtained a doctorate in labor law on the subject of “The Conservation of the Status Quo of Works Council Agreements in the Event of Termination”. Dr. Zeißig has worked as a lawyer since 1996 and as a specialist in labor law since 1999. He has been with ZENK since 2002. Dr. Zeißi...

Josef Hofschroer focuses his practice on corporate law, with an emphasis on M&A transactions for national and international clients. He particularly advises on all aspects of capital markets and securities law. Furthermore, his practice includes distressed investments as well as joint ventures. Josef has particularly wide-ranging experience in the fields of energy, technology, telecommunications and real estate. Among his clients are start-ups, medium-sized and large companies as well as ...

Carsten Kociok focuses his practice on the technology industry. He has broad experience in the areas of Internet, information technology, electronic and mobile payments and new media, as well as regulatory and data protection law issues. Carsten advises national and international companies from the Internet, payments and technology industries on the commercial and regulatory side of their business, in particular in the areas of e-commerce and e-business, electronic and mobile payments, servic...

Wilhelm Bellut is a top attorney recognized by Best Lawyers in the practice area(s) of Arbitration and Mediation. Wilhelm, who practices law in Berlin, Germany, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Wilhelm is held by other top lawyers in the same geographic and legal practice area.

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...

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

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...

Read more on firm website.