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Cees Dekker

BranchesFood & Agriculture, Government, Healthcare, Trade & Industry
ExpertisesCompetition Law, European Law, State Aid
Telephone+31 (0)88 752 00 25
Mobile+31 (0)6 10 01 75 80

Cees Dekker started in private practice in 1989. In 2004 he has joined Nysingh, where he is a partner, after having worked with Loyens & Loeff in Rotterdam. In addition he was lecturer in European and competition law at the Universities of Groningen (1992-1997) and Amsterdam (2002-2005). Currently he is a guest lecturer at the latter in the course Advanced Competition Law.

In 1998 he joined the Netherlands Competition Authority (NCA) and headed the Legal Department. He was intensively involved in the development of the NCA’s enforcement policy and instruments. In his quality as the head of the Legal Department he took part in the Advisory Committee on Restrictive Practices and Monopolies of the European Commission.

In 2000 Cees returned to private practice. In the field of competition law he has advised and represented multinational and national companies and trade associations in such diverse economic sectors like for instance aviation, food and agro, chemical products, construction, (air)ports, health care, as well as road transport business. He has acted in a great many cases before the ACM and European Commission, Dutch Courts as well as the General Court of the European Union (being involved in over 30 cartel investigations).

In the area of state aid, he advises many provinces, municipalities and the central

Dutch government as well as companies and trade organizations (on subsidies, investments in risk capital, sale of public land, public private partnerships, business relocations and installation of (digital) infrastructures, investment in ports and airports and sports and multifunctional infrastructures). He has specific experience in state aid notifications.

With regard to other areas of European law, he focuses on import barriers. He was responsible for the preliminary reference (the first one by way of accelerated procedure) in the Jippes case on the prohibition of vaccination with regard to food-and-mouth disease and also advised, inter alia, on the imports of beef products from the US in the European Union and on EU import bans on shrimps from India. He recently advised a US company on the imports of food supplements in the EU.

In 2002 he published “Nederlands Mededingingsprocesrecht” (“Dutch competition law procedures”). In 2008 he co-authored “Staatssteun in de decentrale praktijk” (“State Aid in the practice of regional authorities”), the first copy of which was presented to former Commissioner Ms Neelie Kroes.

Cees Dekker teaches several courses on competition law and speaks frequently on conferences.

Cees is co-chairman of the international Specialty Group Competition & Antitrust of Nysingh’s worldwide alliance TAGLaw. Furthermore, he is a member of the board of editors of the journal Markt & Mededinging (“markets and competition”), as well as of the board of editors of Tijdschrift voor Staatssteun (Journal for State aid). He also is a member of the advisory committee on competition law of the Dutch Confederation of Netherlands Industry and Employers (VNO-NCW) and of the advisory committee on competition law of the Netherlands Bar Assocation. For more than ten years he was one of the two lawyers in charge of the highly regarded post-graduate course (for lawyers with at least 3 years working experience) in European and National Competition Law of the Grotius Academy, in which course he also lectured and took exams.

Recently he has been appointed as non-governmental advisor for the European Commission in the International Competition Network.


Since 2004, Cees Dekker has always been recommended in the area of EU & Competition Law by the renowned Global Guide of Leading lawyers for Business of the English publisher Chambers and Partners, as one of the leaders in competition law in The Netherlands, based on interviews with his peers and clients.

 A selection of quotes from several issues of these Chambers-Guides:

Cees Dekker impresses market commentators with his ability to work to tight deadlines and his pragmatic attitude. Sources say: “I really valued that he said we shouldn’t go to court – that was the smart answer for us as the client.”

“[The firm] is particularly well known for defending companies in litigation and investigations and has appealed a number of decisions at the European level. Much of the team’s time recently has been devoted to representing clients in cartel investigations, and the group has acted for several entities, including a non-Dutch client, in the ACM’s investigation into the construction industry.”

”There is no doubt that Cees Dekker is the star attraction at this competition team. He has a loyal stable of clients, one of whom told researchers: “I would follow him everywhere. He does an excellent job and knows a great deal.”

 “With a record of securing favourable rulings for clients in Europe, market sources consider the group to be “well connected” and professional. “Accurate and fast to respond ,” the firm is a popular choice with clients who also appreciate the brevity with which its lawyers can convey complex legal points. The team’s ability to deliver high-quality strategic advice is also widely noted. Cees Dekker is “a real advocate – decent and meticulous.” A well-known figure with a big name in complex European cases, he practices widely in cartel work and construction fraud.”

Clients are impressed by his “ability to communicate effectively and to clearly explain complex matters, as well as his high level of pragmatism and attention to detail,” and particularly value his “accurate and meticulous approach to his work” in addition to his “great sense of humour.”


Lawyer since:



University of Groningen

Language skills:


Practice areas:

EU and Competition Law

Legal professionals