LAWYER PROFILE

Antoine Winckler

Global 2026

Cleary Gottlieb Steen & Hamilton LLP

Ranked in 1 practice area

Competition: EU

Belgium

7 years ranked

About

Provided by Cleary Gottlieb Steen & Hamilton LLP

Global

Practice Areas

Antoine Winckler’s practice focuses on European and French competition law, including cartel investigations, merger control, and market dominance.

He has advised clients in numerous cartel cases, including those relating to cement, copper tubes, seamless steel tubes, paper, elevators, cables and freight forwarding. Antoine has extensive experience representing corporate clients and financial institutions, as well as governments and public entities, regarding EU state aid rules; and he has represented clients in disputes before the European Commission, the European Courts in Luxembourg, the French Competition Authority and the Court of Appeals in Paris.

Career

Antoine joined the firm in 1985 and became a partner in 1992. Prior to joining Cleary, he was an administrative judge. He shares time between the Brussels and Paris offices.

Degrees: Master in Law - Université de Nice Sophia Antipolis (1984); Diplôme - École Nationale d'Administration (1983); Agrégation - École Normale Supérieure, Paris (1978).

Professional Memberships

Antoine is a member of the Paris and Brussels Bars;, the International Bar Association; the Association des Juristes Européens, as well as being a member of the European Competition Lawyers Forum.

Publications

He is a co-author of the annual publication "The Dominance and Monopolies Review", Chapter: France

Personal

He speaks German, Spanish, French and English.

Chambers Review

Provided by Chambers

Chambers Global Guide

Competition: EU - Belgium

Senior Statespeople

Individual Editorial

Antoine Winckler is recognised among market commentators as a hugely experienced and high-profile figure within the Brussels competition law community. He attracts particular attention for assisting with sophisticated merger control mandates.

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Strengths

Provided by Chambers

What truly distinguishes him is his proactive communication and ability to anticipate challenges, providing guidance that is both timely and highly relevant to our needs.
Competition: EUChambers Global Guide
Antoine Winckler stands out for his exceptional combination of legal expertise, strategic insight, and client-focused approach.
Competition: EUChambers Global Guide
He really thought outside the box and he works very well with his contacts abroad as well.
Competition: EUChambers Global Guide
Antoine Winckler is an unmatched adviser for strategic and complex topics.
Competition: EUChambers Global Guide