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Johannes Ketzer
Senior Associate

Johannes Ketzer

Rechtsanwalt

Munich, Germany
Languages
  • German
  • English

Johannes Ketzer advises his clients on commercial law, including commercial litigation. He regularly represents companies in supply chain related claims and also advises his clients on the drafting of supply agreements and all aspects of their operational business. In addition, Johannes’ practice focusses on product compliance, advising companies on the German and European requirements for placing products on the market. In this context, he also defends his clients in administrative offence proceedings. Johannes has special expertise in the areas of autonomous driving and the use of AI. His clients include industrial companies, telecoms service providers and online marketplaces.

Johannes joined CMS in 2024.

Memberships & Roles

  • Munich Bar Assocation

Education

  • Since 2021: PhD, thesis on the legal and legal-ethical compliance requirements for programming autonomous vehicles
  • 2022 - 2024: Research assistant, Chair of Criminal Law, Criminal Procedure Law, Legal Theory, Information Law and Legal Informatics and Centre for Social Implications of Artificial Intelligence (SOCAI) at the University of Wuerzburg
  • 2021: Research assistant with the Commercial Litigation, Corporate und M&A practice of a German commercial law firm
  • 2021: Second state examination in law
  • 2019 - 2021: Trainee lawyer, including placements with the Commercial and Commercial Litigation practice of a German commercial law firm
  • 2019: First state examination in law
  • 2013 - 2019: Law studies at the University of Wuerzburg
Practice Areas
Commercial Production and Product Liability Litigation Purchasing and Procurement

Insights by Johannes

See all Insights
Event International

Security Clearance in Defence Sector

25 Mar 2026
Publication Germany

Protecting classified information in Germany: Key requirements for the international arena

12 Feb 2026 3 min read
Legal Update Germany

"AI systems" within the meaning of the AI Act: Term and definition

18 Jun 2025 10 min read
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