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)

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. Henk 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. Henk 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. At the moment he is also chairperson of the Supervisory Board of the Diakonessenhuis in Utrecht.

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, the last three years as chairperson. Pieter is also chairperson of the Supervisory Board at CZ. Pieter 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. At EY Pieter 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.

Erna Versteegden

Erna Versteegden (1967), business advisor and specialist focused on change processes, leadership and D&I, built an international career after her studies. Initially, she worked as the director for the US State of Indiana, supervising trade and investment between Indiana and Europe, the Middle East and South Africa. In the early 1990s, Erna was asked by EY to shape marketing, communications and sales. She continued her career at EY as Company Secretary for Central Europe and Director of Operations for the EMEIA Audit Board. With a background in Marketing and Communications, Leadership Behaviour and Neuroscience, Erna was also educated as a team and executive coach at Phoenix and Harvard Business School. She currently works as a consultant for diversity & inclusion, change processes and operations at various organisations. She is also active in various supervisory positions. She holds a number of governance roles, including at Grachtenfestival Amsterdam and Tiffany Circle/Red Cross.

Mariëtte Turkenburg

After studying Fiscal Economics (Tax) at Tilburg University, Mariëtte Turkenburg (1960) joined Loyens & Loeff, where she worked mainly in the international practice. Within Loyens & Loeff, she also held many management positions. For instance, for many years she was the partner in charge, managing the Compliance practice and thus responsible for the professional management of staff in the tax practice. Mariëtte has extensive experience in supervisory and managerial positions. She chairs the board of Tilburg University Fund and since 2012 she has been a board member of the Talent to the Top Foundation, where she has chaired since 2016.