LAWYER PROFILE
Jean-Pierre Grandjean

Jean-Pierre Grandjean

France 2026

Chambers ranking badge
Chambers ranking badge

Ranked in 1 practice area

About

Provided by Grandjean Avocats

France

Practice Areas

Jean-Pierre Grandjean advises and represents his clients in litigation, arbitration and mediation. He also regularly acts as an arbitrator and a mediator.

His practice focuses on commercial and financial litigation, mergers and acquisitions disputes, shareholder agreement (including joint venture) disputes, contract and tort liability, distribution law, litigation involving anti-competition practices and trust for French and international clients.

Career

Before founding GRANDJEAN Avocats with his partners Marguerite Aynès and Thomas Lambard in 2019, Jean-Pierre Grandjean was a partner at the French law firm Bredin Prat from 1988 to 2002. He then headed the litigation group and co-headed the arbitration group of Clifford Chance Paris from 2002 to 2019.

Professional Memberships

Jean-Pierre is a former member of the Paris Bar Council. He is a member and former board member of several professional associations, including Droit & Procédure and the Association Française d’Arbitrage. He is an expert within the Club des Juristes, a member of the French Committee on Private International Law and the French Arbitration Committee of the ICC. He is also a former member of the Paris Bar School and the Bar Exam (CRFPA) National Committee.

Chambers Review

Provided by Chambers

Chambers France

Corporate/Commercial Litigation: Elite - France

Band 1
Band 1

Individual Editorial

Jean-Pierre Grandjean is a widely respected figure in the market and has a longstanding litigation practice. He represents high-profile corporate and financial institutions in civil and corporate litigation.

Editorial individuel

Jean-Pierre Grandjean est une figure très respectée sur le marché et a une large expérience en matière de litige. Il représente des entreprises et des institutions financières de premier plan dans le cadre de litiges civils et droit des sociétés.

Strengths

Provided by Chambers

  • Jean-Pierre Grandjean is a great advocate with incomparable expertise.

    Corporate/Commercial Litigation: EliteChambers France
  • Jean-Pierre is in every way an excellent practitioner and it is a pleasure to work with him.

    Corporate/Commercial Litigation: EliteChambers France
  • Jean-Pierre Grandjean provides excellent client service. He has all the qualities we ask for in a lawyer.

    Corporate/Commercial Litigation: EliteChambers France
  • Jean-Pierre Grandjean offre un excellent service à ses clients. Il possède toutes les qualités que l'on attend d'un avocat.

    Corporate/Commercial Litigation: EliteChambers France
  • Jean-Pierre est un excellent avocat à tous égards et c'est un plaisir de travailler avec lui.

    Corporate/Commercial Litigation: EliteChambers France
  • Jean-Pierre Grandjean est un grand avocat doté d'une expertise incomparable.
    Corporate/Commercial Litigation: EliteChambers France

Ranked Individuals at Grandjean Avocats (3)

France

  • Profile image of Jean-Pierre Grandjean
    Jean-Pierre Grandjean

    Corporate/Commercial Litigation: Elite

    View profile
  • Profile image of Marguerite Aynès
    Marguerite Aynès

    Corporate/Commercial Litigation: Elite

    View profile

What success is built on

Chambers is the leading data and intelligence partner for the legal sector.

Explore thought leadership