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About us

Welcome to The Ex'tax Project


The Ex'tax Project believes that humanity can flourish by saving natural resources and tapping into the abundance of human capital instead, by developing the capacities and talents of people. This kind of prosperity would last generation after generation. 

In order to get there, we do need to change the 'rules of the game' and give room for an inclusive circular economy. As taxes play such an important role in steering the economy, it's common sense to start there.

The Ex’tax Project is an independent foundation that strives towards a fundamental tax shift from labour to natural resource use. Ex'tax is based on the legacy of Dutch entrepeneur Eckart Wintzen (1939-2008). 

The foundation raises support and creates alliances and practical tools that help advance the implementation of Ex'tax. The ultimate mission is to contribute to the implementation of Ex’tax in national and European fiscal systems.

More on the activities of The Ex'tax Project:

2017

- Update December 2016-February 2017 [pdf]

2016
- Update February-November 2016 [pdf]

2015-2016
Update December 2015-January 2016 [pdf]
- Update July-November 2015 [pdf]
Update January-June 2015 [pdf] 

2014
Highlights 2014 & Outlook 2015 [pdf]
Highlights 2013 & Outlook 2014 [pdf]

The Ex'tax Project is supported by The DOEN Foundation. DOEN promotes sustainable, cultural and social innovation. Ex'tax and DOEN share fundamental goals; to combat climate change, to cultivate an open society based on cohesion and to promote the Green and Inclusive Economy. 

The Ex'tax Project is also supported by Adessium Foundation, a private foundation based in the Netherlands that aspires to a world in which people live in harmony with each other and with their environments.

MAVA Foundation also supports The Ex'tax Project. MAVA Foundation is a family-led, Swiss-based foundation with an exclusive focus on the conservation of biodiversity.

The Ex'tax Project is a Dutch ANBI Foundation.

 

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The Ex'tax Project

Nieuwegracht 53
3512 LE Utrecht
The Netherlands
T +31 (0) 34 349 21 00
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Our people

 

Femke Groothuis photo
Femke Groothuis

President & Wavemaker

Since 1999, Femke has worked with Eckart Wintzen and Ex'tent, pioneering in green and social investment. This inspired her to start the Ex’tax 'wave' in 2009. Being a political scientist in the field of international relations and environment helps her keep the big picture.

Femke on LinkedIn

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Peter Gersen

Vice-President

Peter is media and communication specialist. As a former journalist, producer and director in the world of television and web, he has learned how to strategically convey a message. He now uses his experience, network and talents to fight the good fights.

Peter on LinkedIn

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Bram Zwagemaker

Chairman of the Board

Bram is a seasoned business and financial specialist. Bram was CFO of BSO/Origin when the company published its ground-breaking 1990 environmental report and he has supported the Ex'tax concept ever since. Currently, Bram is director at Ex'tent.

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Kees van Boxel

Member of the Board

Kees van Boxel has 30 years of experience in the field of taxation and business. Until July 2013, Kees was Managing Partner of Tax advisory at Ernst & Young. He has worked with a wide range of family owned companies and multinationals.

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Wendy van Ierschot

Member of the Board

Wendy is human resources specialist. She is the Founder & CEO of Van Ierschot BV (HR co-sourcing & HR consultancy). In 2015 Van Ierschot BV was listed as 'FD Gazelle', as one on the fastest growing companies in the Netherlands. In 2014, Wendy won the Enterprising Women of the Year Award (U.S.).

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HRH Prince Carlos de Bourbon de Parme

Advisor

HRH Prince Carlos de Bourbon de Parme is member of the supervisory board of ASN Bank and board member of MVO Nederland (a CSR association). He builds bridges for sustainability between government, politics and NGOs, in the Netherlands, Italy and Spain.

 

 

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Herman Wijffels

Advisor

Prof. Dr. Wijffels is professor of Sustainability and Social Change at University of Utrecht. Previously, he was the Dutch representative at the World Bank, chairman of the Dutch Social-Economic Council and chairman of the board of directors of Rabobank.


 


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Gail Whiteman

Advisor

Gail Whiteman is a professor of business society management at Rotterdam School of Management, Erasmus University (RSM) and Professor in-Residence at the World Business Council for Sustainable Development (WBCSD).  She is co-founder and Director of ERIM's Centre for Corporate Eco-Transformation.

 

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Wouter van Dieren

Advisor

Wouter van Dieren is a renowned sustainability expert and, amongst others, member of The Club of Rome and of the World Academy for Arts and Sciences.

 

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Paul Dickinson

Advisor

Paul Dickinson is founder and Executive Chair of CDP, which collects data on greenhouse gas emissions, water and forest use. Over 3,700 of the largest companies in the world, and 73 cities with total 244 million inhabitants report through the CDP system.

 

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Paul Ekins

Advisor

Paul Ekins is Professor of Energy and Environment Policy at UCL and a member of UNEP's International Resource Panel. He is an authority on energy-environment-economy (E3) interaction and environmental policy, including taxation.

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Annemieke Roobeek

Advisor

Annemieke Roobeek is professor of Strategy and Transformation Management (Universiteit Nyenrode, since 1997) and member of the Supervisory Board of ABN AMRO Group. She is director and owner of MeetingMoreMinds, an organisation to accelerate learning, innovation and professional development among innovative companies.

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Clien Wintzen

Advisor

Clien Wintzen has been involved with The Ex'tax Project from the very start. Proud of her fathers Eckart Wintzens legacy she helps our organisation with focus and always keeping the bigger picture in mind.