Arne Gayk

Lawyer Partner

I was born in 1976 and studied law in Bonn (Germany) and Strasbourg (France). After my legal traineeship at the Bonn Regional Court and the 2nd state law examination, I was admitted to the bar in 2005. In 2011, the board of the Cologne Bar Association allowed me to use the title “Specialist Lawyer for Tax Law”. In 2016, I successfully took part in the “Certified Executor of Wills (AGT)” course, which was carried out in cooperation with the Working Group for Wills Execu...

Born in 1954 Legal studies at the University of Münster First Exam ("1. Staatsexamen") in 1979 Legal clerkship ("Refrendariat") at the Paderborn District Court Second (Bar) Exam ("2. Staatsexamen") in 1983 Research assistant at the Chair for Civil Law and Labor Law at the University of Münster, 1983 to 1985 Doctor of Laws (Dr. jur.) 1985 Employed at Bayerische Hypotheken- und Wechselbank, 1986 to 1987 Bar admission in 1987 and with the firm since then

Dr. Martin Jäger is Counsel at Hausfeld in Düsseldorf. He advises on all aspects of German and European antitrust law with a focus on antitrust litigation and merger control. Furthermore, he has many years of diverse experience in distribution antitrust law, in particular at the interface with intellectual property law and in antitrust damages proceedings, as well as in advising clients from the healthcare industry. Prior to joining Hausfeld, Martin was Senior Counsel at a leading G...

Legal studies at Bielefeld University State bar exam in 1984 Research associate under Prof. Dr. Westermann and Prof. Dr. Otte (Chairs for Civil Law) at Bielefeld University, 1984 - 1986 Bar admission in 1986 Doctor of Laws (Dr. jur.) 1987 Lawyer at the Hamm and Celle Higher District Courts, 1986 - 1989 With the firm since 1989 Certified Specialized Attorney in Tenancy and Condominium Law

Matthias is a Counsel in Dentons’ Dusseldorf office and a member of the Litigation and Dispute Resolution practice group. He is specialised in international commercial arbitration and has extensive experience in construction engineering and post-M&A disputes. Another key focus of his work is global commercial disputes, including the representation of clients in mass-litigations. He also advises on project development, including the drafting, negotiation and enforcement of commercial...

Jens Kleinert practises as a lawyer and a certified tax lawyer, advising clients on all issues dealing with national and international tax law, in particular on the development of tax-optimised structures and the implementation thereof. This also comprises the development and application of capital market products, especially by using investment funds. He has broad experience in advising on complex restructurings and cross-border transactions. His focus is particularly on business succession ...

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

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

Lawyer Partner