Mathias Bülow

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...

Viviane Freifrau von Aretin is a lawyer recognized by Best Lawyers in the practice area of Labor and Employment Law. Viviane Freifrau practices law in Berlin, Germany Best Lawyers has recognized Viviane Freifrau von Aretin since 2023. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Viviane Freifrau von Aretin is held by other lawyers.

Anja Feies is a lawyer recognized by Best Lawyers in the practice area of Restructuring and Insolvency Law. Anja practices law in Berlin, Germany Best Lawyers has recognized Anja Feies since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Anja Feies is held by other lawyers.

Christiane Huismans, born in 1966 in Telgte (Westphalia), studied law in Münster following her banking apprenticeship in Bremen and has been working as a lawyer since 1996. Since 2017, she has been offering support in conflict situations as a mediator. Christiane Huismans is a partner at ZENK.* Due to her many years of experience as a lawyer in insolvency administrator law firms, on the side of intensive support of the credit industry as well as in large international law firms, Christia...

Andreas Dustmann is a lawyer recognized by Best Lawyers in the practice area of Intellectual Property Law. Andreas practices law in Berlin, Germany Best Lawyers has recognized Andreas Dustmann since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Andreas Dustmann is held by other lawyers.

Peter Schorling is Managing Shareholder of Greenberg Traurig's Berlin office and co-chairs the firm's German Corporate Group, focusing his practice on M&A transactions. Peter advises on all aspects of M&A, real estate and corporate law, providing in-depth expertise in buy-side and sell-side transactions, private equity, joint ventures, corporate restructurings and capital markets. This in particular includes cross-border projects for international clients. Peter has wide-ranging exper...

Oliver Markmann is as a Shareholder within the German Private Equity/M&A team, where he focuses on representing a diverse range of private equity and growth equity clients in various private M&A transactions. His work spans buyouts, minority investments, co-investments, equity rollovers, and joint venture structuring, primarily concentrating on the technology, business services, and healthcare & life sciences sectors. Besides his professional commitments, Oliver values the opportu...

Daniel Seibt is a lawyer recognized by Best Lawyers in the practice area of Real Estate Law. Daniel practices law in Berlin, Germany Best Lawyers has recognized Daniel Seibt since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Daniel Seibt is held by other lawyers.

Dr. Alex Petrasincu is Managing Partner at Hausfeld in Germany. He advises on all aspects of European and German competition law with a special focus on antitrust litigation. Alex is specialized in representing parties in cartel damages actions before the German courts, and has advised on damages actions in various jurisdictions. Alex has represented parties in and advised on actions before numerous German District Courts, Courts of Appeals, the German Constitutional Court, as well as the Eur...

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