Thibault Guillemin is a preferred contact of companies, institutions and their representatives facing complex issues, reputational risks or governance crisis. He advises as well as litigates on situations entailing simultaneous regulatory, ethical, criminal and social aspects.

He leads our "Probity" practise.  Among others, he advises legal, compliance and HR departments in setting up, evaluating and strengthening their compliance programs (codes of conduct, internal audit, risk analysis, KYC, professional alerts, training), both with regard to French legislation (Sapin II, Devoir de vigilance) and foreign ones (FCPA, UKBA).

Beyond his counseling activities, Thibault is a next generation litigator who defends companies and their managers facing internal investigations and/or enforcements.  He represents for many years several companies and individuals in high-profile cases.

Prior joining the Paris Bar, Thibault practised as a counsel in a French law firm of supreme court attorneys (avocats au Conseil d’Etat et à la Cour de cassation) where he managed many cases involving government bodies.  He has recently advised and defended several institutions and their representatives in matters of public corruption, conflict of interests and favoritism.

His practise focuses as well on economic sanctions (embargoes, export controls) and export controls that French and European companies may face.

Thibault's team has been recently recognized as "Rising Team 2020" for his Compliance expertise by the Trophées du Droit, a panel of professionals awarding the best lawyers for their practise. His team has been also recognized as "Excellent" for its white collar practise by Leaders League 2020 and ranked by Legal500 as a "Top Tier 3" compliance law firm.


  • Paris-Dauphine University, University degree, Ethics & Compliance, Anti-corruption Law, 2017
  • Admitted to the Paris Bar, 2002
  • Institut d’Études Politiques de Paris (Sciences Po), Master's degree in Public Affairs, Public Law, Regulatory and Competition Law, 2001
  • Versailles St Quentin University, Master's degree in Public Law, Faculty of Law, 1999

Associations / Outside commitments

  • International Bar Association
  • American Bar Association
  • Le Cercle de la Compliance (ethics & compliance practitioners' association)
  • Association des Avocats Pénalistes (defense attorneys' association)
  • IFA (French Institute of Board Members)

Recent Publications

  • Criminal Liability for Compliance Officers: the French Perspective, in Revue Internationale de la compliance et de l’éthique des affaires, October 2018
  • The adversarial principle during internal investigations, in Décideurs Compliance-Fraudes-Investigations, Paroles d'experts, 2019
  • Debarment from Public Procurement for Corruption: Theory and Practice, in Semaine juridique Edition et Affaires n°31-35, August 1st, 2019
  • Contractualizing the risks of foreign economic sanctions: a cure worse than the disease? in Semaine juridique Edition et Affaires n° 28, July 9, 2020
Stéphane FLICHY

Stéphane Flichy assists our French and foreign clients on their commercial, social and criminal issues.

He heads the Litigation Department of the firm, whose team is entirely dedicated to defending companies and their managers, both in their daily disputes (commercial relationship, unfair competition, employment disputes, etc.) and more exceptional procedures, whether judicial (insolvency and winding up proceedings, unions disputes, shareholders' disputes, criminal liability of companies and their representatives) or arbitration.

A recognized expert in French labour law, he manages a number of complex disputes requiring simultaneous mastery of social, criminal and corporate issues.

He is also called upon to manage crisis situations, implement amicable solutions and assess the risks linked to pre-litigation situations in the context of M&A operations.

A graduate of an LL.M from University College of London, he is particularly involved in transnational disputes and defends a number of leading English and American companies.


  • LLM University College of London, 2003
  • Audencia Nantes, Management School, 2002
  • Faculty of Law, Versailles St Quentin University, 2000

Associations / outside commitments

  • Avosial (employment law attorneys' association)
  • Association des Avocats Pénalistes (defense attorneys' association)
  • AmCham (American Chamber of Commerce in France)

As a specialist in both intellectual property law and new information technologies, Alexis Guillemin is an astute expert of all issues of the company’s intangible heritage. Thus, he assists our clients in managing and valuing their immaterial assets both in France and abroad.

Beyond his strong background in copyright as well as in patents, trademarks and designs litigations, Alexis Guillemin assists our clients with the implementation of the big data processes (GDPR), data mining and protection of personal data (French Data Protection Authority -CNIL-, French Data Protection Officer -CIL-, Privacy Shield, cybersecurity).

He also handles the implementation of complex legal schemes related to new information technologies and media law and devotes a substantial part of its activity to the drafting and negotiation of IT contracts.


  • Faculty of Law, Versailles St Quentin University
  • Certificate of specialization issued by the Paris Bar council in intellectual property law
  • Certificate of specialization issued by the Paris Bar council in information technologies and communication law

Associations / Outside commitments

  • Permanent trainer at the French National Institute of Industrial Property (INPI)
  • INTA (International Trademark Association)
  • APRAM (Association of practitioners of trademark and design law)
  • AIPPI (International Association for the Protection of Intellectual Property)
  • IWLA (International Wine Law Association)
  • Droit et Procédure 
Matthieu BRINGER

Matthieu Bringer assists clients principally in respect of their corporate transactions. He also advises them vis-à-vis banks when circumstances lead them to finance assets or acquisitions of companies.  Finally, as a useful adjunct expertise, he is in a position to supervise the drafting and submission of a take-over bid aimed at a bankrupt company or its assets before a commercial court.

His clients are mainly small to medium-sized corporates, often with an international shareholding.  For these clients, his French-US legal background is a real asset. Indeed, it allows him to efficiently report to, and communicate with the client, in order to bring a deal to a happy conclusion, notwithstanding cultural gaps.

He also advises high net worth families from beginning to end for their investments in companies.

Matthieu strives to offer legal advice that has also business sense or, as a minimum, common sense.  He strongly believes in short and practically-minded written advice, rather than in lengthy lessons of law that a client will never read.

His clients’ business specialties are varied and go from the building and construction industry to connectors’ manufacturing, publishing, robotics, industrial engineering and the agri-food sector.


  • Admitted to the New York Bar, 1995
  • New York University School of Law, LLM in Corporations’ Law, 1993
  • Master 2 (Master's degree year 2), International Private Law, International Commercial Law, 1990
  • Paris II Panthéon-Assas and Paris I Sorbonne, Faculty of Law, 1989

Associations / Outside commitments

  • AmCham (American Chamber of Commerce in France)
Of Counsels

Mathilde Delaunay is an expert on non-profit organizations. She advises all types of organizations in this sector (associations, foundations, endowment funds, etc.) on all aspects of their legal and fiscal operations (creation, functioning, restructuring, project management, seminars and training).

She also assists companies, family offices, and institutions with the legal and financial structuring of their general interest projects.


  • University of Toulouse, Master 2 (Master’s degree Year 2), Public law, Territorial Government law
  • Admitted to the Paris Bar, 2009
Laurent THOMAS

Laurent Thomas is a corporate law expert, in particular on listed and non-listed joint-stock companies. He assists our clients on all classic corporate operations, from the incorporation of structures to their termination and through all operations during the company’s life, including corporate finance activities and transactions (capital increases or decreases, mergers, spin-offs, etc.)

Laurent Thomas has a proven expertise in drafting and negotiating shareholders’ agreements and for day-to-day corporate.


  • Toulouse I University, Master 2 (Master's degree year 2), Business Law, 1997
  • Admitted to the Paris bar, 2000

Associations / Outside commitments

  • Member of the Association Nationale des Sociétés par Actions (national association of joint-stock companies)

Julie Soudaz works in all areas in relation to Corporate law and is turned toward supporting businesses in an international context.

She advises our clients on all day-to-day corporate needs (company incorporation, secretarial services, capital increases or decreases, etc.), restructuring (absorption, spin-offs, etc.) as well as M&A operations (shareholders’ agreements, mergers, acquisitions, private-equity matters, etc.)

Julie also developed a good knowledge of the EMEA region after working for 2 years on international projects as in-house counsel for an international group (CAC 40), and works indifferently in French or English.


  • Paris X Nanterre University, Double degree in European and American corporate law in collaboration with Golden Gate University, San Francisco, USA (2007)
  • Paris X Nanterre University, Master’s in Business Law with a specialization in European Business Law (2008)
  • Admitted to the Bar (2010)
  • Queen Mary University of London, LLM in Business Law (2016)

Mathilde Chevauchez handles issues in connection with all areas of intellectual property law (trademarks, designs, patents, copyright and related rights) and new information technologies (software, data basis, personal data, Research & Development partnerships), for clients comprising start-up companies, listed companies and major French and international groups. She also specializes in distribution law (Terms and Conditions, franchise, commercial licenses).

Her dual expertise in both international private law and as a lawyer-linguist makes her a privileged interlocutor for our foreign clients.


  • Faculty Jean Monnet, University Paris 11, Master 1 (Master’s degree Year 1), International private law, 2010
  • Lawyer-Linguist Diploma of the Higher Education Institute for Translation and Interpreting, 2010
  • Faculty Paul Cézanne, University Aix Marseille 3, Master 2 (Master’s degree Year 2), Research Option, International private law, 2011
  • Faculty Paris Assas, University Paris 2, Master 2 (Master’s degree Year 2), Research Option, Literary Artistic and Industrial Property Law, 2012
  • Admitted to the Paris Bar, 2014

Associations / Outside commitments

  • APRAM (Association of Practitioners of Trademark and Design Law)

Fanny Rochoux handles issues in connection with all areas of intellectual property law (trademarks, designs, patents, copyright and related rights) and new information technologies (personal data, computer law and e-commerce), for clients comprising start-up companies, listed companies and major French and international groups.


  • Faculty of Law, Political Science and Management, University of Strasbourg, Master 1 (Master’s degree Year 1), Business Law, 2013
  • Faculty Paris Assas, University Paris 2, Master 2 (Master’s degree Year 2), Research Option, Literary Artistic and Industrial Property Law, 2014
  • Admitted to the Paris Bar, 2017

Thomas Chanzy’s practice covers both litigation (commercial, financial, securities) and white collar crime, at each stage of the proceedings.

Before joining Guillemin Flichy, Thomas worked in the Compliance/Internal Investigations department of a top-ranked US law firm. He has developed a particular expertise in business ethics and compliance (anti-corruption, human rights, exports controls and economic sanctions).

He assists companies and top managers in the implementation of compliance programs, during internal investigations, as well as he defends them in court.


  • Institut d’Etudes Politiques de Paris (Sciences Po), M.A., Global Business Law and Governance (cum laude), 2015
  • University of Paris II, Panthéon-Assas, Master 2 (Master’s degree year 2), Commercial Litigation, Arbitration and Dispute Resolution (major), 2016
  • Admitted to the Paris Bar, 2017

Recent Publications

  • Debarment from Public Procurement for Corruption: Theory and Practice, in Semaine juridique Edition et Affaires n°31-35, August 1st, 2019

Théo Loucel specializes in labor and social security law and offers counsel as well as assistance in litigation. He advises and defends French and foreign clients in all matters related to individual and collective employment issues (employment contract, dismissal, restructurings, professional elections, employee savings, etc.).


  • Paris II Pantheon-Assas University, Master 1, Social law, 2013
  • Paris II Pantheon-Assas University, Master 2, Social law, Research option, 2014
  • Paris II Panthéon-Assas University, CIFFOP, Professional Master 2, Human Resources and Labor Relations Management, 2015
  • Admitted to the Paris Bar, 2018

Coralie Coquery is a specialist in business litigation (banking and finance law, directors’ responsibility, pre- and post-acquisition litigation, termination of established commercial relationships, etc.). She also offers our clients an expertise in alternative dispute resolution (mediation, arbitration, deals) and judicial procedure.


  • Paris V Descartes University, Master 1 (Master’s degree Year 1), Business Law, 2014
  • Paris V/ University of Warwick (UK), LL.M, Anglo-American Business Law, 2015
  • Admitted to the Paris Bar, 2018
Agathe LUX

Agathe Lux specializes in providing legal and tax advice to non-profit organizations (associations, foundations, endowment funds, etc.). 

Lawyer since 2017, she has been devoting herself entirely to project leaders in the social economy field. 

Prior to joining Guillemin Flichy, Agathe worked for more than 3 years in the “Non-Profit Organizations” department of an international law firm. 

Thanks to her public law training, supplemented by a solid background in business law, Agathe adopts a cross-disciplinary approach to cases.


  • Master’s Degree I, Public Business Law, University Paris II - Panthéon-Assas, 2014
  • University Diploma “Cornerstone of Public Law”, University Paris II - Panthéon-Assas, 2014
  • Master’s Degree II, Professional Section, Business Law, “International Business Lawyer” specialty - University Paris V - Descartes, 2015
  • EFB Paris - CAPA, 2016
Support Staff
Patricia HUVELIN

After a 10-years experience in the advertising industry where she developed key accounts customers, Patricia Huvelin provides the administrative and financial management of the firm (HR, general services, accounting and management control), as well as its communication (press, social networks, events, trainings), responsibilities for which she can rely on a dedicated team.

Her versatility and great listening, combined with real adaptation skills make her a privileged interlocutor to our suppliers and partners.


  • EFAP – Ecole des nouveaux métiers de la communication (Communication’s new jobs School)
  • HEAD (Hautes Etudes Appliquées du Droit), Master Office Manager / Secrétaire Général, 2019

Associations / Outside commitments

  • COM’SG – Cercle des Office managers et Secrétaires Généraux de Cabinets d’Avocats (association of law firms’ office managers and secretaries general)

Wendy Veerasamy is in charge of the physical and telephone reception of the firm.

She takes part in the administrative management of the general services.


  • Professional Qualification certificate

Support staff

Of counsels