Christoph Poertzgen

Martin Wirtz works in all fields of intellectual property matters, with a particular emphasis on trade mark, competition, and copyright law, including litigation. A further focus of his work is patent infringement proceedings. His clients include large and medium-sized firms as well as international companies and associations from a wide variety of different areas. Martin Wirtz studied law at the University of Passau, the University of Freiburg, the University of Cologne, and at Queens' Colle...

Alexander Hoppe is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Alexander, who practices law in Düsseldorf, Germany, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Alexander is held by other top lawyers in the same geographic and legal practice area.

Born in 1976 Legal studies at Bielefeld University, 1995 - 2000 Supplementary studies in informatics at Bielefeld University, 1996 - 1998 First Exam ("1. Staatsexamen") in 2000 Postgraduate studies in legal informatics at the Universities of Hannover and Vienna, 2000 - 2001 Research associate at Bielefeld University, 2001 - 2002 Legal clerkship ("Referendariat") in Bielefeld and Düsseldorf, 2002 - 2004 Doctor of Laws (Dr. jur.) 2004 Second (Bar) Exam ("2. Staatsexamen") in 2004 Worked ab...

Friedrich Kötter-Boisserée Dipl.-Finanzwirt Attorney Certified specialist in tax law Specialists areas : Tax law, transformation-of-companies tax law, transformation-of-companies law, criminal law for tax offenses I have been advising companies/individuals of all legal forms as a lawyer since 1990, specialising in tax law, and since 1997 I have also been licensed as a specialist lawyer for tax law. My former employment with the tax authorities of the state of North Rhine-Westphali...

Ulrike is one of the leading personalities in the field of dispute resolution - in particular for national and international arbitration. Due to her expertise, she is regularly appointed as arbitrator and advises her clients as party representative in complex proceedings. Two main core areas of Ulrike’s practice are turn-key construction (including energy related projects) and post-M&A. She relies on her extensive experience as an advisor for corporate and M&A. Furthermore, she ...

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

Lawyer Partner

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

Yorick Ruland is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law. Yorick, 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 Yorick is held by other top lawyers in the same geographic and legal practice area.

Henrik Holzapfel is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law. Henrik, who practices law in Düsseldorf, Germany, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Henrik is held by other top lawyers in the same geographic and legal practice area.