Claire Vannini

CMS Bureau Francis Lefebvre (Paris)

Claire joined CMS Francis Lefebvre Avocats’s Regulatory & Competition Department in 2002 and became a partner in 2015. She specialises in EU/competition law, pharmaceutical law and public law. She currently assists clients, mainly major French and foreign groups, with regulatory issues, competition and EU law in the field of electronic, audiovisual and network communications. She graduated from IEP of Paris in 1999 and received his degrees from the University of Paris-I in 2000 (DESS de contentieux de droit public). She is member of AFEC and lecturer in EU law (EFB).

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CMS (London)
CMS Belgium (Brussels)
CMS (London)
CMS Bureau Francis Lefebvre (Paris)
CMS Bureau Francis Lefebvre (Paris)


1489 Bulletin

Claire Vannini, Virginie Coursiere-Pluntz The Versailles Court of Appeal puts an end to the debate on whether the tax on direct sales amounts to State aid on the basis of article 108.1 TFEU (Glaxosmithkline / Boiron / Bristol Myers Squibb)


In three decisions handed down on 2 September 2010, the Court of Appeal of Versailles ruled that the tax on direct sales failed to comply with the “Altmark test” designed by the European Court of Justice (now the Court of Justice of the European Union, hereinafter “the Court of Justice”) in order (...)

10412 Review

Bernard Geneste, Claire Vannini Tax and competition: A State aid analysis


If interrelations between tax and competition have always been numerous, the provisions of the EC Treaty related to State aids give rise to new and particularly complex questions. Whilst these questions have gradually grown in importance, the boundaries of a tax measure likely to be classified (...)

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