Curiosity, commercial awareness and excellent legal skills are the best allies of a business lawyer.

Laurent Lehner focuses on corporate, contractual and commercial law. He advises starts-ups, SMEs as well as Swiss and International corporations at every stage of their business life cycle, including incorporation, expansion, restructuring and exit of the investment.

He also has extensive experience in advising clients on employment and employment-related matters. In particular, he offers advice and assistance to his clients in negotiating, drafting and reviewing all contractual documents related to employment law (employment contracts, termination agreements, staff policies, etc.), dealing with executive compensation schemes, including share or stock-option plans, advising on all aspects of social security law and representing employers and employees in judicial and arbitral proceedings.

Laurent is particularly appreciated by his clients and peers for his pragmatic and "tailor-made solution" approach, his cross-cultural skills, and his responsiveness, as well as his ability to understand clients’ needs.


  • Since 2020 Partner at Altenburger
  • 2017-2020 Counsel at Briner & Brunisholz (Geneva)
  • 2014-2017 Associate at CMS von Erlach Poncet SA (Geneva and Zurich)
  • 2011-2013 Junior associate at Lenz & Staehelin (Geneva)
  • 2010-2011 Junior associate at Ernst & Young (Geneva)


  • 2015 Certificate of Advanced Studies (CAS) in Criminal Judiciary, Lausanne and Neuchâtel
  • 2013 Bar admission, Geneva
  • 2012 Certificate of Advanced Studies in Legal Profession, Geneva University
  • 2011 LL.M. in business law (MBL), Geneva University
  • 2009 Master's degree in economic law, Geneva University
  • 2007 Bachelor of Laws, Geneva University

Bar / Court Admission

At all Swiss courts

Special Engagements

  • Member of several corporate boards and advisory boards of companies in the financial and Fintech sector


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Chris Manessis, Chief Investment Officer of Moonchain Capital SA
Karel Svoboda – Executive of an international company based in Geneva

Speaking Engagements

Speaking Engagements

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Full List of Publications

Further Publications

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