Dr. Tobias Thielmann

Dr. Tobias Thielmann is a partner at Wessing & Partner. He advises and defends companies, their management (managing directors, board members, supervisory board members) and members of the liberal professions – in particular doctors – in complex commercial criminal proceedings and company-related crisis situations. His practice focuses on the healthcare and life sciences sector (allegations of malpractice, billing fraud, corruption offenses, medical devices, pharmaceuticals, etc.) as well as the food industry.

Tobias conducts internal investigations and assists companies in clarifying sensitive issues and in communicating with investigative and supervisory authorities. Most recently, he was particularly frequently involved in the investigation of allegations of sexual misconduct in companies (#metoo).

His expertise is regularly confirmed by independent rankings: WirtschaftsWoche has listed him for several years as one of the highly recommended lawyers for commercial criminal law (2023, 2024, 2025) as well as for medical law (2025, 2026) and also recognized him in 2025 as one of the best lawyers for private individuals in criminal law. In the Best Lawyers | Handelsblatt 2024 and 2025 rankings, Dr. Tobias Thielmann is listed as “Ones to Watch” in the areas of Corporate Governance & Compliance, Commercial Criminal Law and Criminal Tax Law. The F.A.Z. Institute ranks him among the leading experts in the field of medical law (QuantiQuest Top Lawyers 2026).

His particular expertise in the healthcare sector is based on a sound scientific foundation: Tobias regularly publishes on issues of medical criminal law. He most recently published the book “Criminal Compliance im Krankenhaus”. Tobias completed his doctorate at Heinrich Heine University Düsseldorf on the topic of “Forced medication in child and adolescent psychiatry” and also worked at the Centre for Law, Medicine and Life Sciences at the University of Cambridge in this context. He previously studied in Düsseldorf and at the Copenhagen Business School. Tobias was also a lecturer at the Heinrich Heine University in Düsseldorf.