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Michael Rosenthal
Lawyers profile
Global 2026
Lawyers profile | Global 2026: Competition: EU, Competition/European Law: Lawyers Based Abroad
Michael Rosenthal
Ranked in 3 Practice Areas
4

Band 4

Competition: EU

Belgium

7 Years Ranked

F

Foreign Expert

Competition: EU

Belgium

4 Years Ranked

Expertise Based Abroad

Competition/European Law: Lawyers Based Abroad

Germany

2 Years Ranked

Ranked in Guides
Europe 2025
Germany 2026

About

Provided by Michael Rosenthal

Global

Practice Areas

European and German Competition Law

Career

Dr. Michael Rosenthal, the founder of Sullivan & Cromwell’s Brussels office and co-head of the firm’s global antitrust group, advises clients on all aspects of EU and German competition law before the European Commission and the German competition authority and courts, as well as the European courts.

In his over 20 years of practice, Dr. Rosenthal has advised clients on a significant number of the largest global transactions, as well as complex cartel and abuse of dominance investigations and related litigation. Dr. Michael Rosenthal is the co-author of the EU merger control treatise Rosenthal/Thomas - European Merger Control (C.H. Beck).

Personal

Michael Rosenthal earned his LLM degree from Columbia Law School, his 1st and 2nd State Exams as well as his Dr. iur. (summa cum laude) from Johannes Gutenberg-Universität School of Law in Mainz and a French-German Business Law Degree from Université de Bourgogne School of Law in Dijon.

Expert in these Jurisdictions

Belgium and Germany

Bar Admissions: New York; Frankfurt; Brussels (E-List)

Languages Spoken

German (native)

English

French

Chambers Review

Provided by Chambers

Chambers Global Guide

Competition: EU - Belgium

4
Band 4
Individual Editorial

Michael Rosenthal heads Sullivan & Cromwell's competition team and leads sophisticated merger control and behavioural matters that involve interaction with the EC. Standout mandates include his defence of clients in EC behavioural investigations into alleged cartel activities. Splitting his time between the firm's offices in Belgium and Germany, he also has notable experience assisting clients with notifying mergers before the German authorities.

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Competition/European Law: Lawyers Based Abroad - Germany

Germany, expertise based abroad in Belgium
Individual Editorial

Michael Rosenthal heads Sullivan & Cromwell's competition team and has a strong focus on merger control and FDI filings. Splitting his time between the firm's offices in Belgium and Germany, he has notable experience in assisting clients with notifying mergers before the German authorities. He also assists clients with requests for information and competition law compliance.

View expertise based abroad table

Competition: EU - Belgium

F
Foreign expert in Germany
Individual Editorial

Michael Rosenthal heads Sullivan & Cromwell's competition team and leads sophisticated merger control and behavioural matters that involve interaction with the EC. Standout mandates include his defence of clients in EC behavioural investigations into alleged cartel activities. Splitting his time between the firm's offices in Belgium and Germany, he also has notable experience assisting clients with notifying mergers before the German authorities.

View foreign expertise table

Strengths

Provided by Chambers

Michael Rosenthal sees the big picture and considers all aspects of transactions and other cases, while being pragmatic.

Competition: EU respondent
Chambers Global Guide

Michael Rosenthal has both deep legal knowledge and a very developed commercial acumen.

Competition: EU respondent
Chambers Global Guide

Michael Rosenthal is a knowledgeable and well-experienced lawyer.

Competition: EU respondent
Chambers Global Guide

Michael Rosenthal is super responsive. His written work products are very concise and offer a crisp analysis.

Competition: EU respondent
Chambers Global Guide

Michael Rosenthal is very experienced, really likeable and a really nice person. He is extremely experienced, really good in negotiations and has outstanding legal expertise.

Competition/European Law: Lawyers Based Abroad respondent
Chambers Global Guide

He is knowledgeable and experienced.

Competition/European Law: Lawyers Based Abroad respondent
Chambers Global Guide

He sees the big picture and considers all aspects of transactions and other cases, while being pragmatic. He is a wonderful person to work with.

Competition/European Law: Lawyers Based Abroad respondent
Chambers Global Guide

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