Alexander Willemsen

Dr. Manuel Knebelsberger is Counsel at Hausfeld in Düsseldorf, specializing in competition law and competition litigation. Before joining Hausfeld, Manuel worked in the competition department of one of the biggest international law firms where he acquired a broad experience in all aspects of competition law, ranging from classic antitrust and merger control to procurement and state aid matters. In addition to advising clients on general competition law, Manuel regularly represents client...

Achim Compes is a lawyer recognized by Best Lawyers in the practice area of Energy Law. Achim practices law in Cologne, Germany Best Lawyers has recognized Achim Compes 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 Achim Compes is held by other lawyers.

Kai Tumbrägel is a lawyer recognized by Best Lawyers in the practice areas of Intellectual Property Law and Media Law. Kai practices law in Cologne, Germany Best Lawyers has recognized Kai Tumbrägel since 2026. 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 Kai Tumbrägel is held by other lawyers.

Lawyer and Mediator Partner

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 ...

Dr Marcus Richter offers advice on all aspects of individual and collective labour law to national and international companies. In particular, he has considerable experience advising on corporate acquisitions, reorganisations, restructurings, outsourcing and integration projects. As part of this he is responsible for both the strategic conception and the negotiations with unions and works councils on wage agreements, settlement of interests, social plan, company agreements and arbitration pro...

Martin Hohgardt is a lawyer recognized by Best Lawyers in the practice area of Intellectual Property Law. Martin Hohgardt’s main areas of practice involve patent prosecution, patent nullity proceedings, opposition proceedings and patent litigation in various technical fields. His technical fields include telecommunications, electrical engineering, special-purpose machinery manufacture, computer-implemented inventions, ciphering systems and medical devices. Martin Hohgardt is responsible...

Arne Kießling is a lawyer recognized by Best Lawyers in the practice areas of Corporate Law and Mergers and Acquisitions Law. Arne practices law in Düsseldorf, Germany Best Lawyers has recognized Arne Kießling since 2022. 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 Arne Kießling 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...

Karl Maria Walter is a lawyer recognized by Best Lawyers in the practice area of Corporate Law. Karl Maria practices law in Düsseldorf, Germany Best Lawyers has recognized Karl Maria Walter since 2014. 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 Karl Maria Walter is held by other lawyers.