Loic Héron Associé du Cabinet MGG Légal à Paris, anciennement MGG VOLTAIRE

Loïc Héron


Loïc Héron joined MGG Legal as partner in October 2014, when his practice merged with Marijke Granier-Guillemarre’s firm.

Working both in French and in English, Loïc has gained extensive experience in corporate restructurings (such as reorganisations, transfers, site closures, etc.) and employment relations in the context of these operations.

Loïc has also developed great experience in collective labour relations (elections, bargaining, consultations, etc.) and individual labour relations for certain special profiles (such as protected employees, corporate officers, etc.).

His main clients are active in the industrial (in particular glass and plastic), transportation, metallurgy, medical devices, IT, retail, services and financial sectors.

Loïc is a member of the following associations: AvoSial and Lancaster.

  • MGG LEGAL – Joined Marijke Granier-Guillemarre on 1st October 2014 as Co-head
  • Lexcom (2009-2014) – Partner and Head of the employment and labour law department
  • Freshfields (2003-2009) – Senior Associate within the Employment &
  • Benefits department of the Paris office, led by Pascale Lagesse
  • DentonWildeSapte (2001-2003) – Associate
  • Baker & McKenzie (1999-2001) – Trainee and Junior Associate in the Employment and Benefits practice group of the Paris office, led by Christine Lagarde
  • Swearing in: February 2000
  • National Assembly (June 1995-May 1996) –Assistant to a Member of Parliament
  • Institut Politique de Paris (Communication & Human Resources, Hons., 1999)
  • Bachelor’s in law, Hons. (King’s College London, United Kingdom – 1996)
  • Maîtrise, French labour and employment law (Paris 1 Panthéon-Sorbonne, Paris – 1996)
  • Qualified as a French “avocat” (Paris Bar School – 1999)
  • Languages: French and English (fluent), German and Italian (basic)

Recent publications

  • Managing headcount reductions in France (Webinar, 2021)
  • Exiting the health crisis for companies, “Smart Lex” on B Smart TV, 22nd June 2021
  • Teleworking from abroad, how to anticipate and manage risks? Answers with MGG Voltaire (Liaisons Sociales, 23rd March 2022)

Areas of Expertise

  • Individual and collective employment law
  • Corporate reorganisations (merger, acquisitions, spin-offs, transfers…) and reductions in workforce
  • Relations with trade unions and employee representatives
  • Alerts on ethics and whistleblowing
  • Status of corporate officers
  • Electoral law
  • Social security law
  • Related litigation


  • Legal 500: “Loïc Héron is extremely congenial, has excellent knowledge and a good and commanding presence to represent clients in meetings” (2018),

  • “Loïc Héron is business minded, very experienced and client friendly” (2019)


  • Leaders League – Décideurs Magazine (since 2010) in the following categories: Collective bargaining and employment relations, Employment litigation, social management of M&A transactions and social audits, Restructurings, redundancy plans and related litigation, and Individual risk litigation


  • Best Lawyers (since 2020)