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Jonas advises companies and shareholders comprehensively on all issues of corporate law. Key practice areas include providing legal support to national and cross-border M&A transactions, venture capital financings and joint venture projects. Another key practice area is corporate restructuring. Jonas also has in-depth expertise in out-of-court and in-court support in complex shareholder disputes and advises companies, management and supervisory bodies on all corporate governance issues, in particular with regard to existing duties and any matters of personal liability.

He is a member of the Corporate and Commercial Law Practice Group and the Corporate Transactions (M&A) Competence Team.

Recent work

  • Advising a listed company in the railway technology sector on a strategic acquisition in the Netherlands
  • Advising the shareholders of a family-run company in the field of high-pressure solutions on the sale to a Norwegian group
  • Advising a project developer in the shopping centre sector on a cross-border shareholder dispute
  • Advising on a strategic joint venture in the food industry  
  • Advising a venture capital fund on various investments in the form of equity investments and convertible loans in German start-ups
  • Advising a Belgian bakery group on a joint venture with a German competitor
  • Advising a PropTech start-up on the entry of a family office
  • Advising a German subsidiary of a Swedish private equity fund on the insolvency-related acquisition of a company in the building technology sector
  • Advising a German PropTech venture capital fund on various investments in German PropTech start-ups
  • Advising a primary insurer on the acquisition of a stake in an Italian insurance intermediary
  • Advising a US automotive supplier on an intended investment in a German automotive start-up
  • Advising a mechanical engineering group on the intended sale of an investment company

Curriculum vitae

  • Studied law at the Heinrich Heine University Düsseldorf, 2009 to 2014
  • Research assistant to Frau Prof. Dr. Katharina Lugani, at the Chair for German, European and International Private and Procedural Law at the Heinrich Heine University Düsseldorf, 2015 to 2018
  • PhD on the question of international jurisdiction in cartel damage claims, 2015 to 2020
  • Legal clerkship at the Higher Regional Court Düsseldorf, 2018 to 2020
  • Lawyer at Kapellmann Düsseldorf, 2020 to 2022
  • Lawyer at Oppenhoff & Partner in Cologne, 2022 to 2023
  • Lawyer at Kapellmann Düsseldorf since 2023



Seulen / Weise, Keine analoge Anwendung des § 179a AktG auf die Kommanditgesellschaft, DB 2022, Seite 1380


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Competencies: Corporate law/M&A

Organizer: Kapellmann und Partner Rechtsanwälte mbB

Address: #Online

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