LAWYER PROFILE

Tone Oeyen

Global 2026

Freshfields

Ranked in 1 practice area

Competition: EU

Belgium

5 years ranked

About

Provided by Freshfields

Global

Practice Areas

Tone specialises in European and Belgian competition law, with a particular focus on cross-border merger control and cartel enforcement, and multi-jurisdictional foreign investment reviews.

He also advises on abuse of dominance and state aid, as well as on general EU and international trade law and trade defence measures.

Tone has significant experience of complex merger proceedings before the European Commission and other global authorities, which often include the negotiation of remedies.

His conduct practice covers anti-competitive behaviour in all areas, including issues raised by digital transformation, and he has successfully defended clients in cartel and state aid-related litigation before the Belgian and European courts.

Tone is a member of the firm’s foreign investment group and advises clients on Belgian foreign investment review proceedings.

He speaks Dutch, English, French, Spanish and German.

Chambers Review

Provided by Chambers

Chambers Global Guide

Competition: EU - Belgium

Band 5

Individual Editorial

Tone Oeyen caters to a client base of well-known multinationals and receives recognition for his handling of EU merger control mandates. He also has experience in antitrust investigations and appeals against Commission decisions, particularly in the technology sector. He has further expertise in merger notifications and behavioural investigations before the Belgian Competition Authority, as well as handling a number of FDI filings.

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Strengths

Provided by Chambers

Tone Oeyen is a trusted advisor in competition law. He has great judgement and a very strong understanding of competition law. He is also willing to learn the complexities of his clients' business.
Competition: EUChambers Global Guide
Tone Oeyen is a great lawyer who allies clarity to complexity.
Competition: EUChambers Global Guide
Tone Oeyen is a very good lawyer who is super reactive and has a good team working with him.
Competition: EUChambers Global Guide
Tone Oeyen is a great lawyer who brings clarity to complexity.
Competition: EUChambers Global Guide