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

Laurent Lehner advises and represents starts-ups, SMEs as well as Swiss and International corporations on employment law, immigration and social security matters.

As an accredited labour law expert (SBA certificate), he has extensive experience advising them on all employment law matters (employment agreements, staff regulations, participations or bonus plans, non-competition clauses, termination agreements, secondments, etc.). Furthermore, he advises clients on restructurings (such as business transfers and collective dismissals) as well as on executing complex internal investigations.

Laurent Lehner has also developed a strong expertise in corporate and commercial law. He advises corporations at every stage of their business life cycle, including incorporation, expansion, restructuring and exit of the investment.

Finally, Laurent Lehner also practices in the field of construction and real estate law, with a focus on real estate transactions, construction and planning agreements as well as general contractor agreements.

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)


  • 2022 Certified Specialist SBA Labour Law
  • 2015 Certificate of Advanced Studies in Criminal Judiciary (CAS MAP-PP), Lausanne and Neuchâtel Universities
  • 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

  • 10/2017 - "L’Ethique numérique dans la Smart City - La protection des biens numériques" - CITIZ’N Coworking
  • 03/2018 - "Start-ups & Plans d’intéressement" - CITIZ’N Coworking
  • 10/2022 - "Gender Discrimination at the Workplace – Discrimination of mothers" - 2022 AIJA Annual Labour Conference, Amsterdam
  • 01/2023 - "Droit du travail et harcèlement psychologique : Prévention et solutions" - Conférence du Jeune Barreau de l'Ordre des Avocats de Genève

Speaking Engagements

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Full List of Publications

Further Publications

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