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Thought Leaders

Thought Leaders

Thought Leader

WWL Ranking: Thought Leader

Global Leader

Competition 2020

Professional Biography

WWL Ranking: Recommended

WWL says

Marc Reysen secures praise as “an excellent lawyer with an impressively performing competition boutique firm”. He is “admired for his deep expertise in this field and for meeting client expectations with ease”.

Peers and clients say:

"He is a very good lawyer, particularly on German antitrust issues."

"Mr Reysen is strong in abuse of dominance cases."

"Marc is an outstanding lawyer and is highly recommended for the complex competition law matters handled by him. He has excellent multi-jurisdictional competition law credentials."

"He is a forward-thinking leader in EU/German competition law."

"Marc is a truly fantastic competition lawyer."


Dr Marc Reysen LLM is a co-founder of Reysen Competition Advice & Advocacy (RCAA), a competition boutique that reintroduces a sense of personal commitment to the provision of competition law advice.

Brussels-based, Marc advises clients on various issues of European and German competition law and represents clients before the European Commission and Germany’s Federal Cartel Office. Besides his focus on merger control and general advisory work, Marc has advised and defended clients in a number of cartel investigations at national and international level, being willing to defend a client just as much as cooperating with authorities where this is called for.

Reflecting his clients’ needs in a globalising world, Marc’s practice also has a special focus on developing compliance strategies for regional and global businesses. For this purpose, he works closely with a number of other law firms that provide specific local input to develop approaches that are in line with a client’s global policies and accommodate local specificities.

Marc is applying RCAA’s signature hands-on approach throughout his work: it impacts how he advises owners, investors and buyers on merger control matters in ways that go beyond the filling out of forms. It makes him roll up his sleeves to help clients face the multi-jurisdictional challenges of devising global distribution systems. It gives him a sense of context when he uses down-to-earth language to explain that successful antitrust compliance depends on ethical business values as well as legal tools.

Marc holds law degrees from the universities of Bonn and Edinburgh. He currently serves as the co-chair of the antitrust committee of the International Bar Association (IBA).

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