Mazars appoints new Executive Board

12 January 2021 – Mazars has a new Executive Board for a period of four years. The new Executive Board is formed by Ton Tuinier (chairman), Peter Hopstaken, Mark Lucas Luijckx, Robert Jan de Rek and Frank Walta.

The Mazars Executive Board values a quality-driven culture and corresponding behaviour. Our quality vision remains unchanged: ‘Mazars enhances trust through leading quality.’ This is recognised by external stakeholders and it is experienced and supported internally. The Mazars values determine how we work with clients, how we develop talent, and the role we play in society. Our values are the platform for the growth of Mazars in the Netherlands and reflect our commitment to go above and beyond expectations – now and in the future.

Ton Tuinier: “Sustainable business operations are on our agenda, now more than ever. Clearly, our purpose is to build and contribute to a fair and prosperous world. It is something I personally hold dear as well. But we must turn these words into action, as the promise is far too important. As chairman, I will therefore be driving our sustainability strategy as a matter of priority.”

The Executive Board is proud that Mazars helps people and clients to get the best out of themselves and to make the most of opportunities. Mazars is at its best when we combine expertise, flexibility and knowledge to provide answers and innovative solutions that meet the needs of our stakeholders. For medium-sized organisations, we are a compact audit, tax and consultancy organisation with short lines of communication and often a Dutch office nearby. To large organisations we offer international expertise and a partnership that can provide support in many countries. Mazars is as large or as small as it needs to be and the new Executive Board will continue to pursue and safeguard this promise in all its growth ambitions.

About Ton Tuinier

After completing his studies in 1982, Ton Tuinier (1960) started as a tax advisor at Mazars. He has been a partner of Mazars since 1996. Ton Tuinier has been a member of the Executive Board in the Netherlands since 2008, he has been chairman since 2014 and will continue this role for the next four years. As of 1 January 2017, he has also been a member of the Mazars Group Executive Board (GEB). The GEB has global responsibility for the strategy, operational direction and implementation of the strategy and supervises Mazars partners around the world. Ton Tuinier will continue that role for the same term.

About Peter Hopstaken

In 1987, Peter Hopstaken (1962) started at Mazars as an accountant. He has been an audit partner since 2001 and is responsible for the Mazars Audit & assurance practice in the Netherlands. His expertise in work for clients is in audit engagements for medium to large companies with international branches, and for not-for-profit organisations in education in particular. He is a member of the Global Audit Board of Mazars and a board member of the Foundation for Auditing Research. Peter Hopstaken has been a member of the Executive Board since 2014 and continues his responsibility for the Audit & assurance practice. He is also responsible for Compliance, quality monitoring and risk.

About Mark Lucas Luijckx

Mark Lucas Luijckx (1972) finished his Dutch Law and Fiscal Law studies at the University of Leiden in 1996. Since 1997, he has been working for Mazars Private Clients and he has been a partner since 2006. Furthermore, as an editor or permanent employee, he works for several fiscal magazines and he is a tutor at the Dutch Association of Tax Advisers. His expertise is in the area of international estate planning. Since 2016, Mark Lucas Luijckx has been a member of the Executive Board and he is responsible for the Tax practice.

About Robert Jan de Rek

Robert Jan de Rek (1965) has worked for the Mazars accountancy practice since 1999 and has been a partner since 2006. As an accountant for organisations that are not subject to a statutory audit requirement, he focuses on family businesses and specific services for director / major shareholders of these businesses. He also plays an active role in developing and integrating clients administrative processes (Mazars Next service). Robert Jan de Rek joins the Executive Board and in that role he will be responsible for the Accounting & outsourcing practice.

About Frank Walta

Frank Walta (1970) has worked for Mazars since 1989, and he has been a partner in the Audit & assurance practice since 2005. In that role he is involved in auditing various large and medium-sized nationally and internationally operating businesses. His client base includes companies in the hospitality sector in particular. He also lectures and is an examiner in External Reporting at Nyenrode Business University. Since 2017, Mazars has worked actively on the changes in processes, systems and cultural behaviour required to pursue our quality vision. Our Change Programme is focused specifically on this essential change in cultural behaviour, and Frank Walta has been programme leader of our Change Programme from the very beginning. Over the coming period he will drive human resource management, in the widest sense of the word, with a focus on culture & behaviour. Over the coming four years, Frank Walta will strengthen the Executive Board and in that role he will be responsible for the Consultancy practice.

About Mazars

Mazars is a leading international audit, tax and advisory firm, aspiring to build the economic foundations of a fair and prosperous world. Operating as a united partnership, Mazars works as one integrated team, leveraging expertise, scale and cultural understanding to deliver exceptional and tailored services in audit and accounting, as well as tax and consultancy. When working with us, you can expect the utmost quality within ethical and legal frameworks. Our clients’ trust in our judgement is the reason we exist. Mazars combines an in-depth knowledge of the regulations with a thorough insight of the market. In this way, we contribute to the sustainable yield of our clients and to society as a whole.

Mazars is present in over 90 countries, with 40,400 professionals – 24,400 in our integrated partnership, 16,000 via the Mazars North America Alliance – dedicated to helping clients make the most of business opportunities and operate with confidence.


For questions please contact Jolanda Voolstra by e-mail or by telephone: +31 (0)88 277 13 33.