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Jones Day

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Sébastien Champagne

Work +32 2 645 15 20
Jones Day

Work Department

Global Disputes; Antitrust Civil Investigations & Litigation


Sébastien Champagne, Partner, focuses on domestic and cross-border litigation. He has represented clients in complex commercial disputes, trade practice and product liability disputes, as well as in telecom-related and competition disputes. Sébastien regularly represents and advises major national and international corporations in pretrial negotiations and in litigation before judicial and administrative courts. His clients are active in various sectors, including the telecom, engineering and supply of industrial equipment, IT, automotive, and pharmaceutical industries. He also is experienced in the drafting and negotiation of commercial and telecom-related agreements.


Dutch, English French.


Admitted to the Brussels Bar.


New York University (M.C.J. 1994); Catholic University of Louvain, Belgium (Law Degree 1993).


Dispute resolution

Within: Dispute resolution

Sébastien Champagne’s group at Jones Day includes ‘brilliant litigator’ Michèle Grégoire, who is highlighted as ‘top of the bill in Belgium and beyond’. Cross-border disputes, trade litigation, product liability and arbitration are all significant sources of instructions. Recent cases include representing Natixis in complex litigation concerning a €70m swap agreement. Vanessa Foncke is also recommended. Werner Derijcke left to join the newly established Malherbe.

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Legal Developments by:
Jones Day

  • US rules regarding offshore accounts

    The Hiring Incentives to Restore Employment Act 2010, enacted on 18 March 2010, imposes a new US withholding tax and reporting regime, known as the Foreign Account Tax Compliance Act (FATCA). The FATCA regime applies generally to payments made after 31 December 2012, except on obligations (to be defined in future guidance) outstanding on 18 March 2012. Substantial effort is required by foreign entities to bring their worldwide operations and policies into compliance with the FATCA rules as of the effective date.

    - Jones Day

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