Mariska Van De Sanden

Bird & Bird (The Hague)
Lawyer (Associate)

Mariska is building a strong reputation for her practice that specialises in EU & Competition law, with a particular focus on its interface with regulated sectors. Mariska is an associate in our Competition & EU Law and Commercial Practices and is based in The Hague. As a Dutch and EU competition law specialist, she particularly focuses on regulated sectors, notably the energy market. Her areas of expertise include cartel and abuse of dominance cases and merger notifications. State aid is another core part of her practice, as well as Wet Markt & Overheid (Dutch Act for public enterprises and their market activities) and public procurement cases. She advises clients on the compatibility of their business practices and compliance with competition rules, including a wide range of EU regulations, such as regarding geoblocking. By combining her EU & Competition and Commercial practice, Mariska is able to provide advice on the full gambit of both regulatory and commercial issues that her clients might face. Additionally, she is a member of our Tech & Comms and Energy & Utilities Groups. Mariska was admitted to the bar in 2013 having graduated cum laude in European Public Law from Tilburg University. In 2017, she successfully completed a post graduate masters in EU Competition law at King’s College London (LL.M., with merit). She is a member of the Dutch Competition Law Association (VvM), the Dutch Association for European Law, the Dutch Association for Procurement Law (NVvA) and the Dutch Energy Law Association (NeVER). Furthermore, she regularly publishes articles on EU & Competition law topics.

Auteurs associés

Bird & Bird (Amsterdam)
Bird & Bird (The Hague)
Bird & Bird (The Hague)
Bird & Bird (The Hague)


1344 Bulletin

Mariska Van De Sanden, Janneke Kohlen, Hera Butt, Tialda Beetstra The Dutch Competition Authority confirms the commitment to dissolve the joint venture by two port towing undertakings (Port Towage Amsterdam)


PORT TOWING JOINT VENTURE DISSOLVED AFTER INVESTIGATION BY THE DUTCH COMPETITION AUTHORITY : FULL-FUNCTIONALITY QUESTIONED* Background On 20 December 2019, the Dutch Authority for Consumers & Markets (ACM) published a decision in which the commitment to dissolve the joint venture Port (...)

Mariska Van De Sanden, Janneke Kohlen, Pauline Kuipers The Dutch Competition Authority publishes a sector report on the impact of biosimilars on competition between TNF-alfa inhibitors


Dutch competition authority ACM publishes a sector report on the impact of biosimilars on competition between TNF-alfa inhibitors* The Dutch competition authority, ACM, initiated a market study in 2018 into the effect of the introduction of biosimilars on the competition between TNF alfa (...)

Hera Butt, Mariska Van De Sanden, Janneke Kohlen The Dutch Government submits its legislative proposal on the sustainability initiatives to the Dutch House of Representatives


COMPETITION LAW AND SUSTAINABILITY INITIATIVES : DUTCH BILL PROVIDES MORE LEEWAY* On 4 July 2019 a long-awaited Dutch legislative proposal regarding sustainability initiatives (“Wet ruimte voor duurzaamheidsinitiatieven“) was submitted to the Dutch House of Representatives. The proposal aims to (...)

Mariska Van De Sanden, Tialda Beetstra The District Court of Rotterdam annuls a €41 million fine imposed by the Dutch Competition Authority on a railway operator for allegedly abusing its dominant position (Nederlandse Spoorwegen)


ABUSE OF DOMINANCE FINE OF € 41 MILLION FOR DUTCH RAILWAY OPERATOR ANNULED* Introduction The Authority for Consumers and Markets (“ACM“, the Dutch competition authority) was in 2017 – after years of silence – finally able to fine an undertaking for abuse of dominance. A heavy fine of almost € 41 (...)

Mariska Van De Sanden The Dutch Highest Administrative Court rules that the National Competition Authority can find private equity investors liable for cartel infringements of their portfolio companies in the food market (Flour cartel)


Private equity investors held liable for cartels in the Netherlands* Introduction On 19 March 2019, the highest administrative court in the Netherlands (het College van Beroep voor het bedrijfsleven, “CBb”) ruled that the Dutch Competition Authority (“the ACM”) can hold private equity investors (...)

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