Professional Overview

Jean-Julien Lemonnier is a seasoned Avocat and Partner specializing in Antitrust and Ethics-Investigations - Defense (EID) at Stephenson Harwood LLP, based in Neuilly-sur-Seine, Ile-de-France, France. He brings extensive expertise in antitrust law, ethics investigations, and defense strategies, with a strong focus on the European market.

Experience Summary

Current Role

As Avocat / Partner Antitrust | Ethics-Investigations - Defense (EID) at Stephenson Harwood LLP, Jean-Julien Lemonnier has been responsible for advising clients on complex antitrust matters, leading internal investigations, and developing defense strategies. His current position involves collaborating with international teams, providing counsel on competition law, and representing clients in investigation proceedings.

Career Progression

Jean-Julien Lemonnier's career progression is marked by notable roles at prestigious law firms. Prior to his current position, he served as Counsel and Senior Associate at White & Case LLP, where he worked on numerous high-profile cases, honing his expertise in antitrust law and investigations. Earlier in his career, he held stagiaire positions at Willkie Farr & Gallagher LLP, Auchan, Baker & McKenzie, CMS Bureau Francis Lefebvre, and Wilhelm & Associés, gaining diverse experience across various legal and business environments.

Areas of Expertise

Jean-Julien Lemonnier possesses in-depth knowledge of antitrust law, investigations, and defense strategies. His technical competencies include expertise in competition law, internal investigations, and litigation. As a seasoned partner, he demonstrates strong leadership and management capabilities, having spearheaded numerous complex cases and led international teams.

Professional Impact

Although specific projects and initiatives are not detailed, Jean-Julien Lemonnier's expertise and experience suggest a significant impact on the antitrust and investigations landscape in Europe. His work has likely influenced the development of competition law and investigations procedures, contributing to the evolution of the legal framework.

Conclusion

Jean-Julien Lemonnier's professional trajectory is characterized by a steady ascent through prominent law firms, culminating in his current role as Avocat and Partner at Stephenson Harwood LLP. His current focus on antitrust and ethics investigations underscores his commitment to this specialized area of law. As a seasoned expert with a strong track record, Jean-Julien Lemonnier offers valuable counsel to clients navigating complex antitrust and investigations matters, making him a valuable asset to his firm and the legal community.