Attorney-at-Law, lic. iur.
LL.M. New York University

CV V-CARD Publications

For many years, Hélène Weidmann has been advising private and public companies as well as entrepreneurs. She assists her clients from the incorporation of their business to its sale, with respect to all contractual and regulatory issues that may arise during the business life of their company. Hélène Weidmann has a strong expertise in the fields of commercial transactions, shareholders’ disputes and stock exchange regulations. She is active, in particular, in mergers, acquisitions, partnerships, restructuring and corporate governance. She also regularly assists her clients with the drafting and negotiation of all types of commercial contracts. Her personal and professional skills as well as her great interest in the activities of her clients allow her to offer contractual structures adapted to her clients’ individual needs and tailored to secure their interests. In the field of stock exchange regulations, Hélène Weidmann regularly assists both issuers with their ongoing listing duties (ad hoc publicity, corporate governance, financial reporting, management transactions and regular reporting obligations) and their shareholders in particular with respect to the disclosures of significant shareholdings. Hélène Weidmann is recognized by SIX Swiss Exchange Regulation as a recognized representative in the areas of bonds, derivatives and equity securities.


  • Lausanne


  • Corporate and M&A
  • Commercial and Contracts
  • Banking, Finance and Capital Markets
  • Private Equity and Venture Capital
  • Insolvency, Corporate Recovery and Restructuring
  • Real Estate and Construction


  • French
  • English
  • German
  • Italian


  • Ordre des avocats vaudois (OAV)
  • Swiss Bar Association
  • Cercle Suisse des Administratrices (CSDA)
  • Centre du droit de l’entreprise de l’Université de Lausanne (CEDIDAC)
  • Association genevoise de droit des affaires (AGDA)
  • Swiss M&A Experts Chamber

Other activities

  • Member of the Board of Directors of ONE Swiss Bank SA
  • CMTA Legal expert (Capital Market and Technology Association)
  • Member of the Vaud Bar Exam Commission (2018-2021)
  • Member of the Committee of the Women's Business Society (WBS)
  • Member of the Advisory Board of MOD-ELLE
  • Member of the Equality Commission of the Vaud Bar Association




T +41 58 220 36 70
F +41 58 220 36 71


12, avenue des Toises
P.O. Box 140
1001 Lausanne, Switzerland