The Team of the Water Stewardship Academy and Innovation Centre currently consists of:


Tom Vereijken 


Tom studied food technology and environmental technology. He worked for over 20 years for the Dutch technology developing company Paques B.V., focusing on design and performance of industrial wastewater treatment facilities, and was Director Water at Grontmij Nederland B.V. for five consecutive years. Tom co-founded the European Water Partnership and became Director of the European Water Stewardship in October 2015. Tom holds MBA degrees from the University of Rochester (NY) and Nijenrode Business University (NL) and is full member of the Club of Rome.


Michelle Vereijken

Executive Secretary

Michelle finished her studies as an executive secretary in 2014. Currently she is combining working for EWS and her study International Business and Languages, with the following languages: English, Spanish and French. She studied abroad for half a year in Valencia, Spain, in order to improve her Spanish speaking skills and to develop a broader cultural insight. Since the end of 2017 Michelle is working as an executive secretary for EWS. 





Ingeborg van Dusseldorp 



Ingeborg is an experienced Information Specialist with a demonstrated history of working in the medical practice industry. Apart from being an consultant for EWS she is also manager of a knowledge centre of a hospital Academy.

Emmie de Vries

Project coordinator 

Emmie graduated from the University of Groningen in 2017 with a thesis about water pollution, and specifically medicines that are causing pollution in water. She is working for EWS as a project coordinator since 2018. Currently she is focusing on a project called Mediclean. For more information check the website: 


Maria Valle

Technical Manager

Maria Valle studied Chemical Engineering in Madrid (Spain) and Pau (France) and holds a master’s degree in Integrated Water Management from Queensland University in Brisbane (Australia). Since 2011, Maria has been in charge of the implementation of the EWS scheme in the industry division. This includes piloting the EWS standard in new sectors, providing recommendations to companies preparing for EWS certification and continuous improvement of supporting documents.



Cristina Brabyn

Programme Manager

Cristina Brabyn studied International Studies in San Francisco (U.S.) and completed her master’s thesis in Water Quality Assessment from Universidad Autónoma de Madrid (Spain) and Mälardalen University (Sweden). Since 2012, she has worked with EWP developing the communication scheme of EWS and working to promote water stewardship mentality in European context and abroad.


Ann Zhang

Director Asia Pacific Region

Ann has been working as consultant and senior manager in developing new business and strategies in China for international organizations over 8 years. In her early career life, she worked as Sales and Marketing manager, Technology Manager in several high-tech MNCs in China in chemical industry for 10 years. She has gained the experiences in both profit and non-profit sectors.  Ann is also an inspiring project leader with proven track record in building for Start-up, Joint-Venture projects in China with cross-culture and cross-functional team. 



Therese Rudebeck

EWS Consultant


Therese holds an M.A. in Sustainable Development and International Relations from University of St Andrews, and an MPhil in Geographical Research from University of Cambridge. Currently, she is finalising her PhD thesis at Cambridge, where her research has focused on the nature of Corporate Water Stewardship, and the benefits and challenges of engaging the corporate sector in water governance. Parallel to her studies, she has worked with the Stockholm International Water Institute, the Global Water Partnership, and the 2030 Water Resources Group, and gained practical experience of the international water policy field. At EWP, her role is to develop, test, and implement an EWS strategy targeting large water-using corporates to improve their water using practices.