Matthias is active in all fields of corporate law at both a company and shareholder level, with a special focus on corporate transformations and reorganizations, corporate governance and compliance. His client base consists of corporations and partnerships, many of which are family owned or dominated enterprises. He frequently advises on corporate statutes and shareholder agreements, and their revisions, as well as on the succession of shareholders including related matters of a particularly confidential nature. Matthias is also involved in shareholder disputes where he represents parties in state courts and arbitration proceedings. He has frequently acted as arbitrator in such proceedings.

Major recent transactions include the reorganization of energy generating activities of E.ON (2013) and the restructuring of the Zur Mühlen Group (2014). During the IPO of HELLA KGaA Hueck & Co. (2014), Matthias advised on the corporate side of the transaction and was counsel to a pool of family shareholders. In the publicly known dispute among shareholders of the family owned Tönnies Group, Matthias acted as counsel to one of the parties.

In addition to his corporate litigation practice Matthias represents parties in cartel follow-on disputes. He has acted in leading cases before German courts (Carglas, Hydrogen Peroxide, TV Commercial Marketing, Airfreight, Sugar etc.).


  • Admitted to bar 1983
  • Universities of Munich and Freiburg (Dr. jur.)
  • University of Berne
  • Law firm in London, 1983
  • Co-Managing Partner 2004-2008


  • Co-author: Beck Standard Forms Handbook for Civil, Commercial and Business Law, 9th ed. 2006
  • Handbook of the Small Stock Corporation, 5th ed. 2008
  • Co-author: Westermann/Wertenbruch, Manual on Partnerships, 2016


Member of the shareholders' committee and chairman of the supervisory board of Vaillant GmbH

Member of the advisory board of Felix Schoeller GmbH & Co. KG