Marleen Velthuis leads our firmwide Regulatory & Criminal Enforcement team and Compliance & Corporate Crime team in the Netherlands. Marleen advises companies and their employees in the context of administrative enforcement actions and criminal investigations following alleged violations of anti-money laundering and sanctions regulations, environmental law and safety regulations. Marleen also represents global corporates in cross border corruption cases, handles tax cases and other white-collar crime matters.

Recent work of Marleen includes:

• Advising several banks, financial institutions and Big Four accounting firms on compliance with AML and sanctions regulations;
• Representing an international operating company after allegations of public and commercial bribery abroad;
• Representing companies in the energy sector following allegations of non-compliance with environmental regulations.

Marleen is a board member of the Environmental Law Association (VMR), a member of the Netherlands Bar Association, the Netherlands Association of Defence Counsel (NVSA) and the Environmental Lawyers Association (VMA) and leads the Dutch chapter of the Women’s White Collar Defense Association (WWCDA). She regularly publishes on selected topics of environmental crime in Milieu & Recht and frequently speaks at conferences about administrative enforcement actions and criminal law cases.

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Memberships

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Dutch Bar Association
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Environmental Law Association (VMR) (board member)
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Netherlands Association of Defence Counsel (NVSA)
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The Environmental Lawyers Association (VMA)
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The Women’s White Collar Defense Association (WWCDA) (leads the Dutch chapter)
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Qualifications

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LLM, Law, Rijksuniversiteit Groningen (cum laude)
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Specialization Criminal law, Willem Pompe Institute, 2017-2018

What others say

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"Marleen Velthuis moved earlier this year from NautaDutilh to Loyens & Loeff. She is an experienced and enthusiastic lawyer."
Legal 500 - EMEA (2024)
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"Loyens & Loeff recently expanded its corporate investigations, compliance & defence team as well as their corporate criminal defence team in the Netherlands. Among others, they attracted Marleen Velthuis as counsel bringing in broad expertise in the field of corporate criminal law. This will allow them to keep handling high-profile cases."
Legal 500 - EMEA (2024)
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"Marleen Velthuis is a very experienced lawyer with broad experience after working at Stibbe and NautaDutilh. Marleen has specialist expertise in environmental criminal law, which also shows from her publications in that field. She is also a board member of the Environmental Law Association and she leads the Dutch chapter of the Women's White Collar Defense Association."
Legal 500 - EMEA (2024)
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"Marleen has a pragmatic way of working and it is always pleasant to work with her."
Legal 500 - EMEA (2024)
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Marleen Velthuis named "Next Generation Partner" in Fraud and White Collar Crime
Legal 500 - EMEA (2024)
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Marleen Velthuis named "Practice head" in Fraud and White Collar Crime
Legal 500 - EMEA (2024)
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Marleen Velthuis named "Next Generation Partner" in Fraud and White-Collar Crime
Legal 500 - EMEA (2023)
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According to the Legal 500 guide, clients describe Marleen as a lawyer with 'excellent knowledge of corporate criminal law, and especially environmental criminal law' (2022) and a 'fast-thinking lawyer and very pleasant to work with' (2021). Clients appreciate her professional yet personal approach and her in-depth understanding of the position of clients facing criminal allegations.
Legal 500 - EMEA (2022)
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Marleen Velthuis

Counsel - Attorney at Law

Marleen.Velthuis@loyensloeff.com

Amsterdam

English, Dutch

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<p>Marleen Velthuis is a member of the Litigation & Risk management practice group in our Amsterdam office. She focuses on corporate criminal law, environmental criminal law and compliance.</p>

Marleen Velthuis leads our firmwide Regulatory & Criminal Enforcement team and Compliance & Corporate Crime team in the Netherlands. Marleen advises companies and their employees in the context of administrative enforcement actions and criminal investigations following alleged violations of anti-money laundering and sanctions regulations, environmental law and safety regulations. Marleen also represents global corporates in cross border corruption cases, handles tax cases and other white-collar crime matters.

Recent work of Marleen includes:

• Advising several banks, financial institutions and Big Four accounting firms on compliance with AML and sanctions regulations;
• Representing an international operating company after allegations of public and commercial bribery abroad;
• Representing companies in the energy sector following allegations of non-compliance with environmental regulations.

Marleen is a board member of the Environmental Law Association (VMR), a member of the Netherlands Bar Association, the Netherlands Association of Defence Counsel (NVSA) and the Environmental Lawyers Association (VMA) and leads the Dutch chapter of the Women’s White Collar Defense Association (WWCDA). She regularly publishes on selected topics of environmental crime in Milieu & Recht and frequently speaks at conferences about administrative enforcement actions and criminal law cases.