Supervisory Board

Mazars Netherland’s Supervisory Board (SB) is responsible for guaranteeing the public interest and aims to improve the quality and independence of our services. The Supervisory Board supervises the Mazars Executive Board and the entire organisation. Among others, the Supervisory Board is responsible for the policy regarding future board nominations and the remuneration and quality policy.

Henk Broeders (Chairperson of the Supervisory Board) 

Henk Broeders (1952) is an internationally experienced director and supervisor. After various jobs in the field of automation, he became general manager of IQUIP Informatica Ltd. (subsidiary of Capgemini) in 1992. Broeders held various management positions within Capgemini. He was appointed chairperson of Capgemini Benelux in 2000 and was a member of the Capgemini S.A. Executive Committee from 2004 to 2011. Broeders was also chairperson of the board of directors of Capgemini Netherlands (2009 to 2011). In addition, until 1 February 2013, he was chairperson of Capgemini’s global leadership program TeamOne and Corporate Vice President of Capgemini S.A. As of 1 February 2013, he has been working as an independent consultant, coach, supervisor and interim manager. In that capacity, he is leading the Jaarbeurs independently from October 2013.

Marga Hoek (Vice Chairperson of the Supervisory Board) 

Marga Hoek (1965) is a figurehead for sustainable entrepreneurship. After gaining broad CEO, management and administrative experience with Bam Wonen and Thunnissen Groep, she has fulfilled this mission in recent years from various roles: since 2010 she has been the initiator and general director of De Groene Zaak; the business association that is committed to a sustainable economy. She is also chairperson of the scientific network Het Groene Brein. Hoek is also administratively involved in various research programs at the Netherlands Scientific Education Institute (NWO), jury chairperson at Climate-kiC and member of the Advisory Board of several university business schools. Her book ‘’Doing business in the new economy’’ was voted management book of the year in 2014 and will be published in 2016 in various languages and countries.

Pieter Jongstra

In June 2018, Pieter Jongstra (1956) concluded the chairship of the board of the Royal Netherlands Institute of Chartered Accountants. In addition, he has been vice-chairperson of APG's Supervisory Board since February 2015. He is also chairperson of the Supervisory Board's Audit and Risk Committee and the Governance Committee. Jongstra was affiliated with EY for 32 years. He joined EY in 1982 and left the EY partnership on 30 June 2014. At EY, he held (inter)national management positions for more than 15 years, of which the last 4.5 years as chairperson of the Board of Directors in the Netherlands. Moreover, Jongstra has always conducted an accountancy practice of mainly internationally operating listed and family-owned companies. In his administrative roles, he is especially motivated when he can improve an organisation through change. Diversity and sustainability are common threads running within his managerial career.