Dr. Jan Wendler advises clients in corporate compliance, investigations, and M&A matters. He focuses his practice on domestic and cross-border internal investigations and has particular experience in representing major multinational corporations in the context of multi-jurisdictional investigations in Europe, the United States (DOJ, SEC and DOS), Asia and Latin America. Dr. Wendler is well positioned to help clients navigate matters that involve certain ESG topics, including supply chain due diligence, risk management, corruption and compliance.

Dr. Wendler has also distinctive experience in the design, development, implementation and testing of compliance management systems, particularly in the context of compliance monitorships. He has significant experience in working as a core-member of a DOJ-appointed independent compliance monitorship team, as well as experience representing companies undergoing monitorships. He is a Certified Compliance Professional and has advised companies with regard to establishing, implementing, and testing third party management systems and conducting third party due diligences / business partner reviews.

In addition, Dr. Wendler has particular experience advising clients in national and international M&A transactions, including in conducting compliance due diligence.


  • Internal Investigations and Government Representations

    • Advising in the team of a DOJ/SEC appointed independent compliance monitor for a German-based supplier of global dialysis products and services.
    • Advising a global consulting company in connection with an internal investigation in Eastern Europe.
    • Advising a DAX-30 company in connection with an investigation launched by the U.S. Securities and Exchange Commission.
    • Advising a DAX-30 company in connection with an investigation initiated by the U.S. Department of State.
    • Advising a German listed company undergoing a compliance monitorship in connection with the development and implementation of a third party management system.
    • Leading a large compliance review on behalf of a major German company of 1000 business partners globally.
    • Representation of a major international financial institution in a money-laundering multi-jurisdictional internal investigation. 
    • Representation of a Swiss financial institution in a criminal tax investigation conducted by the US Department of Justice and other agencies.
    • Representation of a UK financial institution in a criminal tax investigation conducted by the US Department of Justice and other agencies.
    • Representation of a German stock listed construction company in a multi-jurisdictional (Central and Eastern Europe) corruption investigation conducted by a German public prosecutor’s office.
    • Representation of a German company in an investigation under the US Foreign Corrupt Practices Act. 


  • Dr. Wendler is recommended by Legal 500 Germany since 2017 for compliance. “Jan Wendler impresses with strategic value-added advice through knowledgeable assessment of the legal situation and routine dealings with DOJ and Monitor”, “Efficient, very pleasant to work with and transparent in communication”, “Strong U.S. practice with extensive experience in dealing with U.S. authorities, in particular (leveraging on) previous experience of some U.S. Partners working with agencies. From the perspective of German clients, the German practice acts as a valuable complement and helpful link in U.S. proceedings (2022).
  • JUVE Handbuch consistently recommends Dr. Jan Wendler for compliance, most recently in the 2022/2023 edition (“judicious expert in connection with internal investigations,” – peer review).

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  • Education

    • Second State Exam, Frankfurt am Main, 2007

    • PhD in Law, University of Rostock, 2006

    • LLM, University of San Diego, 2002

    • First State Exam, Berlin, 2001

  • Admissions

    • Frankfurt

  • Languages

    • German

    • English

    • French



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