Contact Info vCARD

T: +49 89 189 33-130
F: +49 89 189 33-330

Munich Office
Hofgarten Palais
Marstallstrasse 11
80539 Munich, Germany


​Mark Zimmer is a German-qualified partner in the Munich office of Gibson, Dunn & Crutcher.

A Certified Expert for Employment Law, Mr. Zimmer advises companies in all labor and employment-related matters. His practice particularly covers reorganizations, mergers and acquisitions, collective dismissals and outsourcing as well as negotiations with works councils or unions and hiring and separation of executives. He also represents companies in court.

A special focus of his practice is compliance, especially the prevention and detection of, as well as reaction to, fraud, corruption and similar violations. Mr. Zimmer has developed particular expertise in the international and German law aspects of the Foreign Corrupt Practices Act ("FCPA") as well as of the UK Bribery Act and he is experienced in FCPA investigations. He has conducted internal investigations relating to businesses in several European countries, as well as in Egypt, Brazil, Lebanon, Morocco, Nigeria, Russia and Uzbekistan. Especially noteworthy is his work as part of the Siemens Compliance Monitorship Team.

JUVE Handbook regularly recommends Mr. Zimmer. Legal Experts EMEA 2013 and Chambers Europe 2016 also ranked Mr. Zimmer among the leading employment lawyers in Germany. Chambers Europe has commented "sources appreciate his excellent guidance as well as his availability and business sense" and note that he is "extremely keen to find a practical solution and is always well prepared with legal matters". In addition, Best Lawyers Germany has recognized Mr. Zimmer as a leading lawyer in the Litigation and Criminal Defense categories. The JUVE Handbook 2015/2016 also recommends the Munich office's White Collar Defense and Investigation team in the category "Compliance Investigations".

Mr. Zimmer has published several articles on labor law matters. He is a frequent speaker at seminars and conferences on HR and compliance issues, such as restructuring, outsourcing and corruption, and a guest lecturer at the German Armed Forces University in Munich.

Prior to joining Gibson Dunn in 2008, Mr. Zimmer worked in other international law firms throughout Germany.

He is fluent in English and also speaks French and some Arabic.

Representative Clients and Cases

  • A worldwide cable manufacturer, in its outsourcing of logistics activities.
  • Defense contractor in its downsizing of German operations.
  • Several software companies regarding their restructuring.
  • Several companies on their purchases, including negotiations with unions and works councils.
  • Pilot trials at Federal Labor Court regarding interpretation of collective agreements.
  • An automotive company, in its international bribery case.
  • A leading technology group, in the biggest German corruption scandal.
  • A network technology firm, in its investigations in Lebanon and Nigeria.
  • Representation of an engineering company against its fraudulent manager in China.
  • Protecting an electronic firm against its fraudulent procurement staff.
  • Multinational coordination of personnel actions, in embargo case.
  • Numerous litigation cases against fraudulent employees.

Membership of Professional Bodies

Mr. Zimmer has been admitted as a German lawyer (Rechtsanwalt) since 1996. 


  • University of Würzburg - 1994 - Dr. jur.
  • University of Würzburg - 1993 - Law Degree


  • Germany - Rechtsanwalt

Recent Publications

August 25, 2017
July 1, 2016