Sebastian Helmes

Mathias advises private equity, financial and venture capital investors, as well as corporates and entrepreneurs on their buy-side and sell-side M&A deals, strategic investments, financing rounds and joint ventures.

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.

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 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...

Natalie Hsiao is Local Partner in the Corporate/M&A team and focuses her practice on complex corporate transactions of all kinds, including acquisition and sale processes, joint ventures and restructurings. Natalie has broad experience in the field of M&A transactions for national and international clients with a focus on the real estate, infrastructure and the media, technology and telecoms sectors. In addition, she advises on all aspects of venture capital investments. Natalie repre...

Jörg Meissner is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law, Mergers and Acquisitions Law, Private Equity Law and Venture Capital Law. Jörg, who practices law in Berlin, Germany, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jörg is held by other top lawyers in the same geographic and legal practice area.

Born in Göttingen in 1966, Dr. Martin Düwel studied law and history in Regensburg, in Aberdeen, UK and at the Free University of Berlin. From 1994 to 1998, he worked as a research assistant at the Institute for State Studies, Constitutional and Administrative Law. He has been active as a lawyer in Berlin since 1996. In 1999, he received his doctorate in constitutional law on the subject of of “Oversight Powers of the Federal Constitutional Court in Constitutional Complaints ag...

Stephanie Hotopp is a top attorney recognized by Best Lawyers in the practice area(s) of Restructuring and Insolvency Law. Stephanie, 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 Stephanie is held by other top lawyers in the same geographic and legal practice area.

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Uwe Bärenz is a partner at POELLATH in Berlin. He focuses on private investment funds, GP and investors advice. He is predominantly engaged in private equity funds, including cross-border work, mainly Luxembourg, tax and regulatory issues, filings, terms and conditions, private and public placements, investors' needs (pension funds, insurance companies, investment funds, fund of funds, private clients), complex secondary transactions. He is one of the most experienced advisors for the es...