Martin Römermann

Oliver Markmann represents a wide range of private equity clients as well as large and medium-sized domestic and international companies (listed and unlisted). Oliver focuses his practice on corporate matters, including corporate restructurings and general corporate law topics with a focus on stock corporations. He advises national and international clients in private M&A transactions (share deals and asset deals) and the structuring of Joint Ventures. Another focus is to prepare and stee...

Fabian Meinecke is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense and Criminal Tax Practice. Fabian, 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 Fabian is held by other top lawyers in the same geographic and legal practice area.

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.

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...

Christoph Enaux is a partner with Greenberg Traurig Germany. LLP. He chairs the German Telecommunications Sector Group as well as the German Regulatory and Competition Practice Group of Greenberg Traurig. Christoph focuses on advising domestic and international clients in the areas of German and EU telecommunications and media regulation and competition law. He advises on commercial and regulatory aspects of new business models as well as on regulatory, merger control and antitrust proceeding...

Timo Winkelmann is a partner in the Real Estate practice group at POELLATH in Berlin. He advises national and international clients on all matters related to real estate law. The focus of his practice is real estate transactions. In addition to share and asset deals, he supports his clients regarding asset management, e.g., conclusion of lease agreements. From time to time, he is involved in post-M&A disputes. Before joining POELLATH in 2008, he was working at an US law firm in the M&...

Lawyer and Notary Partner

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.

Ünsal Demir is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Ünsal, who practices law in Berlin, Germany, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ünsal is held by other top lawyers in the same geographic and legal practice area.

Henning Sieber focuses his practice on real estate and corporate law. He regularly advises on real estate acquisitions and sales, including structuring and financing, and has broad experience in advising on large-scale portfolio transactions. Henning is also experienced in the structuring and restructuring of real estate investments, including advising on restructuring and refinancing of distressed investments. Due to his diverse experience, Henning was named a leading lawyer in real estate b...