Aron Heidtke

Andreas Dustmann is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law. Andreas, 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 Andreas 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.

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.

Oliver C. Ehrmann is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Oliver C., who practices law in Berlin, Germany, has been recognized since 2027. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Oliver C. is held by other top lawyers in the same geographic and legal practice area.

Lucas focuses on competition/antitrust, foreign trade, and regulatory law. He advises companies, particularly in technology-driven sectors, on structuring and executing joint ventures, cross-border mergers, infrastructure partnerships, and restructurings, with a strong emphasis on regulatory compliance and competition law. Additionally, he assists clients with foreign direct investment (FDI) control in cross-border transactions as well as in matters of sanctions and export control law. Anothe...

Liane Thau is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. Liane, 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 Liane is held by other top lawyers in the same geographic and legal practice area.

Martin Borning is a Local Partner in the Public Law Group in Germany with a focus on advising on transactions, including joint ventures, co-operations and corporate restructurings, and projects in regulated industries. Martin has longstanding experience advising companies and corporations in the energy and transportation sectors. On energy, he advises in the fields of conventional energy, in particular oil & gas, renewable energy and new energy, including hydrogen, carbon capture utilizat...

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...

Lawyer and Insolvency Administrator Associated Partner

Gordon Geiser is a partner with GT Restructuring. His clients include investors as well as companies in distressed situations and their respective management. Gordon Geiser regularly acts as restructuring advisor to his clients to develop and implement restructuring concepts by means of both debtor-in-possession proceedings and regular insolvency proceedings. He also gets appointed as insolvency administrator. When acting for his clients, Gordon Geiser takes on positions in the management of ...