Aymeric de Moncuit is a partner in the Antitrust & Competition practice of the Brussels and Paris offices. He has 15 years of experience and has been involved in high-profile cases in both Europe and France. He joined from the General Court of the European Union, where he was a Référendaire. Previously, Aymeric was a competition lawyer in private practice, and a case handler with the French Competition Authority. He boasts considerable experience in EU competition rules (merger control, cartels, competitor collaborations, dominance, State aid) and experience of the European courts. A significant focus of his experience is in key areas such as Artificial Intelligence (AI), the luxury industry, the European Green Deal and ESG. He is highly respected in the market and has a strong network of relationships and contacts at French businesses and industries.

In addition to lecturing French and EU Competition Law in Panthéon-Assas, he is a prolific writer and speaker on EU litigation, State aid and competition/antitrust law topics.

He joined Mayer Brown in 2022.


Merger Control

  • Represented Generali RE and Munich Re in connection with the acquisition of Saxon Land, a real estate investment company.
  • Represented Generali funds on a co-investment transaction and joint venture in One Fen Court, a newly-developed office tower in London’s insurance district, with German insurer Munich Re.
  • Represented a major Japanese trading company in connection with the acquisition of a controlling interest in a mining company.

Competition Advice

  • Advised various manufacturers on the implementation of their distribution network in France and the EU.
  • Advised Private Equity firms on recent cases in the technology sector.
  • Advised and provided training to various companies on the Digital Market Act and the Digital Service Act.
  • Advised and provided training to various companies on dawn raid inspections.

Competition Litigation

  • Representing a party involved in the ongoing European Commission’s investigation in the fragrance sector.
  • Representing a Greek brewery company in an ongoing multi-million euros antitrust lawsuit against a global beverage company.
  • Representing a global company in connection with a high-profile ICC Arbitration case involving a claim of abuse of dominant position through excessive pricing.
  • Representing a US-based energy company in connection with a high-profile ECT arbitration.

ESG Regulatory

  • Providing antitrust advice to a consortium of global companies and trade associations in the cosmetic industry.
  • Advising a French company in connection with the proposed EU Packaging and Packaging Waste Regulation as well as in connection with the European Investment Bank’s financing of “Green Deal” initiatives.
  • Providing regulatory and pre-litigation advice to a global agribusiness company in the dairy industry.

General Court of the European Union (Luxembourg)

  • Competition law:
    • Abuse of dominance: Google and Alphabet v Commission (T-612/17), Deutsche Telekom v Commission (T‑827/14) and Slovak Telekom v Commission (T‑851/14), Servier and Others v Commission (T‑691/14)
    • Anticompetitive agreements: Portugal Telecom v Commission (T‑208/13) and Telefónica v Commission (T‑216/13), FSL and Others v Commission (T‑655/11)
    • Merger: Éditions Odile Jacob v Commission (T-471/11)
    • State aid: Whirlpool Europe v Commission (T‑118/13)
  • Procedure: Casino, Guichard-Perrachon and Others v Commission (T‑249/17, T-254/17, T-255/17)
  • Intellectual property: Billa v EUIPO – Boardriders IP Holdings (Billa), (T‑524/18), Užstato sistemos administratorius v EUIPO – DPG Deutsche Pfandsystem (T‑477/18)
  • EU regulatory (chemicals): France v ECHA (T-127/20), Agrochem-Maks v Commission (T‑574/18), Nouryon Industrial Chemicals e.a. v Commission (T-868/19, ongoing)

Autorité de la Concurrence (Paris)

  • Handling of the “home and personal care products” cartel case (Decision 14-D-19), highest fine ever imposed by the French competition authority (nearly €1 billion)
  • Investigation of companies suspected of infringing competition rules (handling of information requests, oral hearings, “dawn raids”)
  • Handling of numerous merger filings


Harvard Law School, Program on Negotiation and Leadership (PON)

King's College London, Master's (Intellectual Property Law)

Université Paris I Panthéon-Sorbonne, Maîtrise en droit des affaires et en droit international (Master's in Business Law and International Law) | Diplôme d'études approfondies de droit européen (Postgraduate degree, European Law)

University of Leeds, Licence de droit (bachelor's in law, Erasmus)


  • Brussels (Bar E list - Ordre Francais des Avocats au Barreau de Bruxelles)
  • Paris