Stephan Hansen-Oest

Holger Leichtle is a top attorney recognized by Best Lawyers in the practice area(s) of Restructuring and Insolvency Law. Holger, who practices law in Stuttgart, Germany, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Holger is held by other top lawyers in the same geographic and legal practice area.

Born in 1970 Legal studies at Bielefeld University First Exam ("1. Staatsexamen") in 1995 Doctoral studies as a Friedrich-Naumann-Stiftung fellow, dissertation on "Kapitalsicherung und Gläubigeranfechtung" (capital protection and creditor appeals) under Prof. Dr. Schön as doctoral advisor Legal clerkship ("Referendariat") at the Bielefeld District Court Second (Bar) Exam ("2. Staatsexamen") in 1998 With the firm since 1999 Doctor of Laws (Dr. jur.) 2001 Certified Specialized Attorne...

Andreas Dehio is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law and Regulatory Practice. Andreas, who practices law in Frankfurt/Main, Germany, has been recognized since 2020. 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.

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

Qualified to practice law in New York and Germany, Gebhard serves as counsel and as arbitrator. Gebhard has advised a broad range of clients across many industries, including energy and natural resources, healthcare and pharmaceuticals, manufacturing, and financial services. He has acted in many investment and commercial disputes, including high-value post-M&A arbitrations, price revisions under some of Europe’s largest gas import contracts, and disputes arising from other long-term...

Susanne Christine Monsig is a top attorney recognized by Best Lawyers in the practice area(s) of Public Law. Susanne Christine, who practices law in Cologne, Germany, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Susanne Christine 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...

Christoph Janssen is a top attorney recognized by Best Lawyers in the practice area(s) of Restructuring and Insolvency Law. Christoph, who practices law in Cologne, Germany, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christoph is held by other top lawyers in the same geographic and legal practice area.

Heiko Heppner is co-head of the German Dispute Resolution practice group and professor of law concentrating on international arbitration and litigation with a focus on Germany and common law jurisdictions. Heiko has particular experience with defending clients against mass and class securities litigation and special expertise in Banking and Capital Markets litigation, including the liability of credit rating agencies and for the mis-selling of derivatives. Moreover, Heiko represents clients b...

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