Board of ACM

Since September 1, 2018, Martijn Snoep has been the Chairman of the Netherlands Authority for Consumers and Markets (ACM). Mr. Snoep obtained his law degree from Erasmus University Rotterdam. Until his appointment at ACM, he worked at Dutch law firm De Brauw Blackstone Westbroek for 28 years. Operating from both their Amsterdam and Brussels locations, Mr. Snoep gave advice to businesses about the application of competition law in the Netherlands and abroad. As managing partner, he stood at the helm of the firm between 2010 and 2016.

Portfolio

• Competition
• Health care
• Strategy and communication
• Legal affairs

Other positions

• Substitute judge on the Court of Appeals in Amsterdam
• Chairman of Trustees of the Europa Institute (Leiden University)
• Member of the Scientific Council of the Global Competition Law Centre (College of Europe, Bruges)
• Member of the Supervisory Board of the Van Gogh Museum in Amsterdam
• Member of the Board of the Aruba Fair Trade Authority (AFTA)

Manon Leijten has been a Member of the Board of ACM since March 2, 2020. Ms. Leijten earned her master’s degree in business economics from Erasmus University Rotterdam. Prior to her appointment as Member of the Board of ACM, she was the Secretary-General of the Ministry of Finance for six and a half years. From 2011 to 2013, she was Director-General of the Senior Civil Service (ABD), which falls under the Ministry of the Interior and Kingdom Relations (BZK). Before that, between 2008 and 2011, she was Director of the Internal Budget Directorate at the Ministry of Social Affairs and Employment (SZW).

Portfolio

• Energy
• Telecommunications, Transport and Postal Services
• Office of the Chief Economist – ACM Academy

Other positions

• Member of the Board of Governors of Tilburg University / also member of the audit committee
• Member of the Board of the Netherlands Red Cross
• Member of the Mission-driven Innovation Team “System Integration”, created in connection with the Mission-driven Top Sector and Innovation Policy

Martijn Ridderbos has been a Member of the Board of ACM since January 1, 2025. Mr. Ridderbos earned his master’s degree in business economics from Erasmus University Rotterdam, and holds an executive master’s degree in Finance and Control from VU University Amsterdam. Prior to his appointment as Member of the Board of ACM, he was vice-chairman of the Executive Board of Leiden University for eight years. Before that, he was Group Director of Finances at the Dutch Public Prosecution Service (OM) and Director of its Service Center. From 2011 to 2017, he was a Professor in Public Management at Utrecht University. Earlier in his career, he worked for Ernst & Young and Cap Gemini.

Portfolio

• Consumer Department
• Corporate Services Department
• I-domain Program Department
• Taskforce on Data and Algorithms

Other positions

• Member of the audit committee of the Dutch police
• Member of the audit committee of the Council for the Judiciary (in Dutch: Raad voor de Rechtspraak)
• Owner of Knightwood BV