Klaus Thönißen

Christoph J. Müller is a lawyer recognized by Best Lawyers in the practice area of Labor and Employment Law. Christoph J. practices law in Cologne, Germany Best Lawyers has recognized Christoph J. Müller since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Christoph J. Müller is held by other lawyers.

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...

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...

Dr Michael Körner has been working as a lawyer in our Cologne office since 2018 and was appointed partner on January 1, 2026. He primarily advises clients in the areas of environmental law, public procurement law, public commercial law, surveying and cadastral law, and the law governing publicly appointed surveyors, in particular partnership law. He also advises on liability law, state liability and compensation law, and litigation. He speaks German and English.

Dr Pierre-André Brandt has been working as a lawyer and partner in our Düsseldorf office since 2025. He primarily advises clients on real estate transactions and real estate project developments, as well as commercial tenancy law. Other areas of focus in his work include real estate asset management and leasehold structuring. He speaks German, English and Norwegian.

Michael Schaumann is a lawyer recognized by Best Lawyers in the practice area of Mergers and Acquisitions Law. Michael practices law in Cologne, Germany Best Lawyers has recognized Michael Schaumann since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Michael Schaumann is held by other lawyers.

Born in 1972 Legal studies at Bielefeld University First Exam ("1. Staatsexamen") in 1998 Doctoral research a Friedrich-Naumann-Stiftung Fellow Research associate under Prof. Dr. Oehler (Chair for Commercial and Business Law, as well as Comparative Law) at Bielefeld University Legal clerkship ("Referendariat") at the Bielefeld District Court Second (Bar) Exam ("2. Staatsexamen") in 2001 Bar admission in 2002, and with the firm since then Doctor of Laws (Dr. jur.) 2003 Certified Specialized At...

Henrik Holzapfel is a lawyer recognized by Best Lawyers in the practice areas of Intellectual Property Law and Litigation. Henrik practices law in Düsseldorf, Germany Best Lawyers has recognized Henrik Holzapfel since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Henrik Holzapfel is held by other lawyers.

Volker Teigelkötter is a lawyer recognized by Best Lawyers in the practice areas of Employee Benefits Law and Labor and Employment Law. Volker practices law in Düsseldorf, Germany Best Lawyers has recognized Volker Teigelkötter since 2020. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Volker Teigelkötter is held by other lawyers.

Christoph Angerhausen is a lawyer recognized by Best Lawyers in the practice area of Intellectual Property Law. Christoph practices law in Düsseldorf, Germany Best Lawyers has recognized Christoph Angerhausen since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Christoph Angerhausen is held by other lawyers.