Ari Gudmannsson

Of Counsel

Office Location


  • English
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  • French
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  • German
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  • Icelandic
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  • Luxembourgish

Ari Gudmannsson is a member of the Dispute Resolution practice at Arendt & Medernach. He specialises in criminal law, with a focus on white-collar, financial and corporate crime, as well as money laundering and corrupt practices issues.

He assists our clients at all levels of management of criminal risk through the upstream assessment and avoidance of criminal risks related to our clients’ business; the representation of our clients, whether as defendants, victims or merely involved parties, at all stages of local criminal proceedings, including the recovery of the proceeds of fraud through civil actions in the criminal courts; as well as the provision of legal support in the context of international proceedings in relation to, inter alia, international letters rogatory proceedings, international arrest warrants and extraditions.

Prior to joining Arendt’s Dispute Resolution practice in charge of criminal law, he had been a member of Arendt’s Banking and Finance business unit since 1997, gaining the detailed insight into and knowledge of our clients’ business needed to help them to develop appropriate and effective criminal prevention and defense strategies.

Ari Gudmannsson has been a member of the Luxembourg Bar since 1997.

He is a visiting lecturer at the University of Luxembourg and the author of various publications.

He holds a Master's degree in law and a postgraduate degree (DEA) in private international law and international commercial law from the Université Paris I Panthéon-Sorbonne (France).

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