IMPACT ECONOMY FOUNDATION (IEF) - Key Persons


Adrian de Groot Ruiz - CEO, Founder

Job Titles:
  • CEO
  • Co - Founder
Adrian is the CEO and Co-founder of Impact Institute. He is also the Co-Founder of True Price, the Co-Initiator and board member of the Impact Economy Foundation, and the Director of True Price Foundation. Adrian holds a PhD in Economics from the University of Amsterdam, cum laude, and has served as a member of the Supervisory Board of Utrecht University since 2022. He was recognized as a Global Shaper by the World Economic Forum and as one of the top-20 of most influential people in sustainability by the Dutch newspaper Trouw.

Anastasia Pikul

Anastasia is a Strategic and Financial Analyst Fellow. She has recently obtained her MSc in Finance from the University of Amsterdam, specializing in Asset Management. Previously she obtained a BSc (Hons) in Economics and Business. During her studies, Anastasia has taught bachelor level seminars at the university and completed internships in Verno Capital private equity company in Moscow and the ING Wholesale Banking in Amsterdam.

Andrea Rusman

Job Titles:
  • Manager
Andrea is a manager. She has been project manager and consultant of over 50 impact measurement, management and strategy projects. Her expertise is on the impact of work, working conditions and human rights and she is driven by the complexity of supply chains and the potential for change through transparency. She holds a MSc in Econometrics and a BSc in Mathematics.

Anne Barendregt

Anne is Operations Manager. She most recently worked as Operations Manager at Vitens Evides International, an international social enterprise. She holds an MSc in Civil Engineering.

Anne Mesguich

Anne is a Data Scientist and Junior Developer. She holds an MSc in Finance & Investments (Advanced) from the Erasmus University of Rotterdam. She works in both the Data and Software teams. She is especially interested in leveraging impact data and models to help companies operate more sustainably.

Anouk Evers

Job Titles:
  • Senior Office Manager
Anouk is the Senior Office Manager. She most recently worked as Office Manager at the UvA Institute for Advanced Study and was General Manager / Coordinator at the Kurt Lewin Institute. She holds an MSc in Clinical Child Psychology.

Bart van Veen

Job Titles:
  • Researcher
Bart works as a Researcher. He holds an MSc in Human Movement Sciences and a PhD in Mechanical Engineering, specializing in stochastic modelling of motor control. Previously, he was a post-doctoral researcher in biomechanics at the University of Sheffield. Before joining Impact Institute, he worked on turning an old bunker into an urban farm.

Bettina Schmiedler

Bettina is a Research Trainee. She recently obtained her MSc in Law and Society: Governance and Global Development from Leiden University. Before moving to the Netherlands, Bettina worked as a Community Manager and Communications Lead at Impact Hub Hamburg. Her passion for promoting an impact economy already began during her undergraduate: Alongside studying Business Law and Business Psychology, she held leading roles at Enactus, a student initiative dedicated to Social Entrepreneurship. In her free time, Bettina enjoys writing poetry, dancing, and chasing tasty plant-based food.

Bram van Andel

Job Titles:
  • Fellow
Bram is a Fellow within the sustainable finance team. Prior to his work at Impact Institute, he worked as a sustainability consultant, focussing on TCFD. Before that, he did an internship in impact investing at Wire Group. He holds a MSc in Environmental Economics from UCL, and a BSc in Liberal Arts and Sciences from Amsterdam University College.

Chloe Le Roux

Chloe Le Roux is an intern within the marketing and communication team. She is entering the third year of her studies at ISCOM Paris. Specializing in innovative marketing she wants to choose sustainable communication as her master's major.

Christoph Meier

Job Titles:
  • Operations Officer
Christoph is an Operations Officer. He recently completed a master's degree programme in Corporate Environmental Management at the University of Jyväskylä and holds a BBA in International Business and Management from the Hanze University of Applied Sciences, Groningen. During and between his studies, he completed different internships in the areas of supply chain management, vendor management, and humanitarian aid projects.

Claire van den Broek

Claire is our Public Affairs Lead and works with the team on developing and managing partnerships with governments, universities, NGO's and social enterprises. She has working experience in various roles and sectors: from marketing and business development in telecom and retail to Partnerships management for an NGO. Claire is a hands-on team player with the conviction that together with partners and in coalitions, transformative change can be realized.

Dimitra Papaefthymiou

Job Titles:
  • Fellow
Dimitra is an Intern with the Sustainable Finance Team. She has recently graduated with an MSc in Environmental Economics from Vrije Universiteit Amsterdam. Prior to this, she completed her studies in Finance from Athens University of Economics and Business and completed an internship in Project Finance at EY Greece. She believes in the power of responsible organizations in realizing the green transition and a more sustainable and inclusive society. Dimitra is a Fellow. She holds an MSc in Industrial Ecology, specializing in sustainable consumption and the implementation of alternative economic practices. Previously she obtained an integrated Master's degree in Chemical Engineering.

Dominik Arntz

Dominik is a Junior Financial/Business Controller. He joined the Impact Institute after graduating from the master's program Business and Social Impact at Utrecht University. He also holds a BSc in Business Administration from Maastricht University, where he majored in Finance. In his leisure time, Dominik enjoys playing squash and basketball as well as cooking and woodworking.

Estefania Marti Malvido

Estefania is a True Price Trainee. Before joining Impact Institute, she worked as a research analyst with the Access to Nutrition Initiative (ATNI), an international NGO focused on benchmarking and private-sector accountability. She has a master's in Public Policy and Administration specializing in Food from the University of Massachusetts Amherst. Before moving to the Netherlands, she completed an internship with the International Food Policy Research Institute. Estefania is passionate about practicing and teaching ashtanga yoga

Florian Reuter

Florian leads the Energy, Water and Infrastructure (EWI) consulting team. He is an experienced consultant and project manager in impact measurement, management and strategy. He joined the organisation in 2018 and builds several long-term collaborations in the energy, water and resource transitions. Florian believes "impact thinking" can help organisations navigate just transitions. He is as an optimist with a sound critical mindset, and has 10+ years experience in consulting with a MSc in Mathematics. He regularly taps into experiences ranging from his time at Deloitte in risk consulting to travelling the world on a bicycle.

Giorgi Dundua

Giorgi is an experienced instructional designer and e-learning developer. In the past years, he worked with tech companies from the USA, Netherlands and Sweden as an instructional designer. Inspired by digital design practices, he aims at developing socially and environmentally just and responsible education.

Han Chu

Job Titles:
  • Executive Business
Han is the Executive Business Assistant, supporting Adrian and the Executive Council. She is also part of the Tech team working with people operations and other coordination. She is a member of the internal committees, IncluCie and WeCie, which focus on inclusivity and well-beingness. You can also find her taking care of the plants in the office sometimes. She holds an MSc in Cultural and Social Anthropology from the University of Amsterdam and a BA in Journalism from National Chengchi University in Taiwan.

Henry van Kouswijk

Henry is commercial lead for the technology team. He gained experience in client facing- and team lead roles in the past 10 years within technology and data driven organizations. He is excited about the value data and technology can bring in developing and transforming organizations. He holds a Msc Business Administration Strategy and Organization from the VU university.

Iwan Gerritsen

Job Titles:
  • Senior Associate
Iwan is a Senior Associate. He holds master degrees in European Union Studies and International Relations and a BA in History. Prior to his work at Impact Institute he worked in the solar energy sector as R&D team-lead and process manager. Sustainability consultant during the week, designer and green thumb during the weekends, his passion is to teach people about the importance of a healthy soil.

Janna Goldstein

Job Titles:
  • Associate
Janna is an Associate in the software team. Before joining Impact Institute, they obtained a PhD in Astrophysics from the University of Birmingham. Their research on Gravitational Wave data analysis involved writing plenty - albeit not pretty - software. Now, Janna enjoys discovering the world of functional programming and Domain Driven Design, aiming to keep improving the readability and usefulness of our source code. They value openness and collaboration between software and other areas.

Jenny Rolon

Job Titles:
  • New HR Coordinator
Jenny is the new HR coordinator in the Operations & HR Team. She is a psychologist with a master's degree in work and organizational psychology from VU University Amsterdam. Before moving to the Netherlands, she worked as a psychologist for around 4 years doing interventions and developing workshops to promote mental health and well-being for employees and their families. Since 2021, she started in HR in the Netherlands, working for a non-profit NGO called Animana. She did her master's internship in HR and recruitment at Canon. She believes that equipping people with the right knowledge, making actions easy and enjoyable, and allowing participation are essential for working together toward a common goal

Joram Prinsen

Job Titles:
  • Manager of the Education Team
Joram is the Manager of the Education team, focusing on the CSRD Academy. He is a Dutch chartered accountant (Register accountant, RA) with 10 years of experience at PwC in financial audit and advising on and assuring integrated reports and sustainability / ESG information. In his spare time, he loves working in his vegetable garden and cycling to the beach with his wife Charlotte and daughter Ella.

Katharina Bauer

Job Titles:
  • Fellow
Katharina is a Fellow. She holds an MSc in Strategic Management from HEC Paris. Before that, she obtained a BSc in Liberal Arts and Sciences from Leiden University College. Katharina completed various internships focusing on business and sustainability. Companies she has worked for include BASF, the Netherlands Institute for Sustainable Packaging (KIDV) and Rubio Impact Ventures.

Leanne Heuberger

Job Titles:
  • Associate
Leanne is an Associate and works in the Responsible Value Chains team. She has experience in project management and contributed to 20+ impact measurement & valuation projects and value chain impact assessments. Leanne combines creative and analytical skills with a critical mindset to support organisations in assessing their impact on people and planet. She holds an MSc in International Development Economics and is driven by connecting impact information to people's day-to-day activities to drive change.

Lewis Zwart

Lewis is a Tech Lead in the software team. Over the past years she has worked on bespoke client tools as well as standardized impact calculation engines. Lewis likes to use an agile way of working to fulfil clients' needs efficiently and is also passionate about capturing our impact methodology nicely in code. Previously she obtained a MSc in Mathematics at the University of Amsterdam.

Lien van Gogh

Job Titles:
  • HR Business Partner
Lien is a HR Business Partner in the Operations & HR Team. She is an international HR professional with over 20 years of experience in HR business partnering , designing, and delivering complex HR and Talent projects in both multinational corporations and social enterprises. Lien is also a passionate nutritional therapist and Bioenergetics health practitioner. Her aim is to help people optimise their nutrition & lifestyle for greater energy, vitality, and mind-body wellness.

Loes Verdonk

Loes is a Research Trainee. She holds a MSc in Climate Studies from Wageningen University and Research with a specialization in Biogeochemical Cycles, and previously obtained an interdisciplinary BSc in Earth Sciences. Before joining Impact Institute, she worked at Wageningen Environmental Research.

Lorenzo Bissi

Lorenzo is a Trainee in the Sustainable Finance department. He has moved to the Netherlands to study a BA in European Studies and an LLM in Law and Finance at the University of Amsterdam. The Impact Institute is the starting point of his career: he wants to contribute to positive change from the very beginning.

Lotte Jonkergouw

Lotte is a Tech Lead within the Software team performing both managerial tasks as well as being a developer in the scrum team. Previously, she worked as a consultant at EY in the areas of software and mergers & acquisitions. She obtained an MSc in Physics by studying the statistical data analysis of the Higgs boson, and a MSc in Software Engineering by specialising in cyber security analytics.

Luke James

Luke is a Team Lead at Impact Institute in the Responsible Value Chain team. He has worked across Latin America and Europe in multiple tech, start-up and large conglomerate environments. He holds an MSc in International Business and Management and is passionate about coordinating multi stakeholder projects that prove that sustainable initiatives and collaborative working can generate positive systemic change.

Manuel Becker

Manuel joined in October as an intern in the sustainable finance team. He has been studying Liberal Arts and Sciences with a focus on environmental economics and climate finance in Luneburg and Hong Kong. Most recently Manuel was a research assistant at the Technical University of Nuremberg's department of business administration, working on true price implementation. Manuel is passionate about entrepreneurship, sustainable economics, and skiing.

Marinka Ooteman

Job Titles:
  • Senior Consultant at Roland Berger
Marinka is a Team Lead in the Responsible value Chains team and worked previously as a Senior Consultant at Roland Berger in Amsterdam where she advised corporate and public private-partnership clients on strategic topics with a focus on societal impact. She obtained her MBA at INSEAD in 2019, holds a MSc in Finance & Investments from RSM - Erasmus University and a BSc in International Business Administration from Tilburg University.

Marinus Oertel

Marinus is a Data Science Intern and Project Support Officer in the software team. He holds a BSc in Industrial Engineering and Management from Technical University of Berlin. He is writing his master thesis in cooperation with Impact Institute while pursuing a MSc in Sustainable Development at Utrecht University. After obtaining his BSc he worked as a software engineer in the Netherlands and whenever he is not looking at screens, he likes to go bouldering or play board games.

Martha Dani

Job Titles:
  • Financial Controller
Martha is a Financial Controller. With a Bachelor's degree in Economics, she has been working for 10 years in Finance, with experience as Financial Analyst and Investor Relations Analyst. Before joining Impact Institute, she worked as a Credit controller for IDEXX BV, and now she is ready to contribute to a more sustainable project.

Massil Gouachi

Massil is an intern in the Sustainable Finance Team. He is doing a master's degree in engineering at the Ecole Centrale de Lyon in France. Massil has previous experience in the fields of data, sustainability and optimization through an internship in Afleya.

Matthijs Moerel

Matthijs is a Trainee within the Sustainable Finance team. He recently completed his MSc in Climate Change Finance and Investment from the University of Edinburgh. Prior to this, he received his BSc in Economics and Business Economics from Maastricht University where he specialized in Emerging Markets. Matthijs has previous experience in the fields of finance and sustainability through internships at AAC Capital and Mana Impact Partners.

Maurits Appeldoorn

Job Titles:
  • Maurits  Is a Senior Associate. He Holds an MSc International Relations and Political Philosophy, Specializing in Democratic Theory. He Previously Worked at a Subsidy Consultant and for ING Bank
Maurits  is a Senior Associate. He holds an MSc International Relations and Political Philosophy, specializing in democratic theory. He previously worked at a subsidy consultant and for ING Bank.

Megan Roux

Job Titles:
  • Senior Associate
Megan is a Senior Associate. She recently obtained an MSc in Economics, specializing in Behavioral Economics and Game Theory from the University of Amsterdam. Prior to that, she received a BA in Economics at Rhodes University in South Africa.

Michel Scholte - Founder

Job Titles:
  • Co - Founder
  • Director
Michel Scholte is the Director and Co-Founder of the Impact Institute. He is a social entrepreneur dedicated to a more equitable economy. Michel is also the co-founder and executive director of True Price. He holds a variety of advisory board positions and is an alumnus of the Shapers Network of the World Economic Forum and a member of Worldconnectors. He holds an MSc degree in Sociology from the VU University Amsterdam, with a specialization in research methods, politics and living wages. Michel is a frequently asked public speaker and opinionist in the field of impact measurement and valuation.

Nina Sieber

I'm a Junior Project and Contract Administration Officer. I recently completed a Master's degree in Political Science from the University of Amsterdam and am particularly interested in urban development and sustainability. In my free time I love cooking, doing yoga, listening to music, going for walks with my dog and watching movies.

Pietro Galgani

Job Titles:
  • R & D Manager
Pietro is R&D Manager and leads the Data and True Price method development work. He is passionate about developing new ways to bring social and environmental data to decision makers. He has published on true pricing of food with the Scientific Group of the UN Food System Summit and is co-author of the True Price Methodology reports. He has a BSc in International Development and MSc in Industrial Ecology, and he loves gardening, music and food.

Rogier Schutte

Rogier Schutte is a software geek with over 10 years of experience as a founder of several startups. He has worked on a wide range of industries, from fintech to health tech. Rogier is a skilled product manager with a focus on user research and usability

Roland van Keeken

Job Titles:
  • Manager
Roland is a Manager and he leads our work for the Impact Investing sector. He has been involved as consultant and project manager in 50+ projects since joining Impact Institute. He believes that impact measurement and management can play an essential role to support the allocation of capital towards solutions for today's societal challenges. Previously, he worked in Financial Risk Management at Deloitte and Ortec Finance. He holds a MSc in Quantitative Finance from Erasmus University.

Roy Verkaik

Job Titles:
  • Associate
Roy is an Associate. He holds a MSc in Business Administration with a specialization in Business Analytics. Roy previously worked in the financial sector at a large corporate bank. He believes in the transformative power of sound data use in organizations. A personal ambition is to keep exploring the added value of Micro Finance, wanting to empower communities with financial means.

Simon Wittkamp

Simon is a Trainee in the Energy, Water and Infrastructure (EWI) consulting team. He holds a MSc in Mathematics from the University of Amsterdam, with a focus in Graph Theory. During his studies he was a teaching assistant for the Bachelor Mathematics and a member of the Faculty Student Council. Simon also has a black belt in Kung Fu.

Simone van Klaveren

Simone van Klaveren is our Coalition Manager, working on the development and management of strategic international multistakeholder partnerships and building coalitions within different sectors. Before joining us, she worked in London at the Pioneers Post - the leading international social enterprise and impact investment magazine. She holds a Masters degree in Intercultural Communications from Utrecht University. Professionally, she's passionate about social enterprise, advocating that both business and making positive social impact can (/should!) go hand in hand - and personally she's passionate about everything animal-related.

Steffen Reimers

Steffen is a Trainee in the RVC team. I obtained a MSc in Climate Studies from Wageningen University with a specialization in Climate, Society and Economics. Prior to that I received a BSc in Environmental Sciences in Freiburg, Germany.

Tim Jonkers

Tim is within the software team the Team Lead and Scrum Master. Tim previously worked as a Customer Engagement Consultant for large banks and wealth management partners. He believes collaboration is a prerequisite for creating value and by doing it together improve complete value chains. He obtained a MSc in Business Administration, specializing in Marketing from Radboud University Nijmegen.

Vicky Carreras

Job Titles:
  • Chief of Staff
Vicky is the Chief of Staff, supporting governance, strategy and decision making. She has experience working in various corporate, academic and NGO roles, including communications, operations and leadership. Previously, she was the director of a global network of civil society organisations working on conflict prevention and peacebuilding. She holds an MBA in Social Entrepreneurship and is passionate about the energy transition; she is the co-founder of a small NGO supporting local communities to adopt renewable energy in the city.

Victor Lucas

Victor is a Trainee in the Responsible Value Chains team. He was most recently an advancement intern with FishWise, an organization working to create environmentally and socially sustainable global seafood supply chains. He holds an MSc in Environment and Resource Management with a Global Water Challenges specialization from the Vrije Universiteit Amsterdam. Prior to that he earned a BA in International Relations from American University.