VISION
One of the greatest opportunities of the 21st century is the realization of the impact economy: an economy where everyday work, entrepreneurship, innovation, and technology lead to a better world. To achieve this, a global system shift is needed in which we keep the valuable components of the old market system while embracing new economic models. A requirement for making this shift to the impact economy is a common language for impact and integrating this language into every aspect of our economy.
MISSION
Our mission at the Impact Institute is to empower organizations and individuals to realize the impact economy by creating a common language for impact and providing the tools to use it. We develop open-source standards for impact measurement and valuation and provide organizations with the tools, training, and services to implement them.
HISTORY
The Impact Institute is a social enterprise and a spin-off of True Price. True Price, founded in 2012, developed methods and tools to measure and monetize impact. In 2018, True Price decided to continue as a non-profit focused on maintaining a standard and community to realize true pricing, a system where consumers can see and voluntarily pay the true price of their products. All services, as well as the development of new methods and technologies, have been spun off to the Impact Institute.
PARTNERSHIPS

Impact Economy Foundation (IEF) is a non-for-profit organisation and was founded to accelerate the transition to an impact economy. In order to achieve this IEF challenges conventional economic ideas, institutions and interests in order to shape an impact economy. The work of the IEF is based on prior open source work of Impact Institute and True Price.

Impact Institute is a social enterprise and a spin-off of True Price. True Price, founded in 2012, developed methods and tools to measure and monetize impact. In 2018, True Price decided to continue as a non-profit focused on maintaining a standard and community to realize true pricing, a system where consumers can see and voluntarily pay the true price of their products. All services, as well as the development of new methods and technologies, have been spun off to the Impact Institute. Impact institute provides consulting services in the field of true pricing through its close work with True Price.

True Price Foundation has the mission to accelerate the adoption of true pricing, by creating standards, generating transparency when it comes to true pricing and mobilizing a consumer movement. True Price Foundation collaborates with the social enterprise True Price to make True Prices a fact.

Banking for Impact is a global pre-competitive collaboration which brings together leading banks, knowledge institutions and other organisations. Its aim is to scale up impact measurement and management in the financial sector and contribute to a more inclusive economy that serves people and the planet. It does this by bringing together expertise and experience and creating a shared state-of-the-art approach to impact measurement and valuation tailored to financial institutions.
VACANCIES
Find our current vacancies here.
OUR TEAM
Follow the links and get to know our impact makers!
EXECUTIVE COUNCIL
Michel Scholte
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.
Adrian de Groot Ruiz
Adrian de Groot Ruiz is the Director and Co-Founder of the Impact Institute. He is also the Co-Founder and Director of True Price. He is the co-initiator and a board member of the Impact Economy Foundation and the SDG Charter Foundation. 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. Adrian holds a PhD in Economics from the University of Amsterdam, cum laude, and serves as a member of the Supervisory Board of Utrecht University.
Jellie Banga
Jellie Banga is the CEO of the Impact Institute. She strongly believes businesses can and should play an important role in realising a more just, inclusive and sustainable world respecting nature, human rights and the planetary boundaries. Jellie has more than 20 years of experience in the financial services sector. From 2013 to 2021 she was a member of the Executive Board of Triodos Bank where she was responsible for the commercial and operational development of the bank in six European countries (CCO/COO). Prior to that she worked at ING for twelve years where she was Director Business Lending for the Netherlands and worked on strategy and corporate development. Jellie is a member of the Supervisory Boards of Invest International and Lendahand. She holds an MSc degree in Business Administration & Industrial Management.
Sustainable Finance
Arjan Udding
Arjan is the director responsible for our Consulting division and our Sustainable Finance team. Bringing more than 23 years of consulting experience, he helps organisations transform to become impact-driven so they can play their role in accelerating societal transitions. Prior to joining, he worked for PwC NL and UK, helped build a consulting start-up from scratch, and was the CRO a.i at SWIFT. He strongly believes real change starts with individuals who have the courage to embrace uncertainty and breakthrough status quo thinking.
Sven Renon
Sven is a Manager, and he leads the work for the Banking sector within the Sustainable Finance team. He is an experienced consultant in impact measurement and management. Sven has a strong drive to change the way financial institutions measure and manage their impact, thereby helping them to become stewards of humanity and nature. Biodiversity impact has his specific interest and he is a data visualisation enthusiast. Previously, he worked as a Policy Advisor at the Ministry of Finance.
Roland van Keeken
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
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.
Sanne Wassink
Sanne is an Associate within the Sustainable Finance team. Prior to Impact Institute she worked as a financial consultant for ERP systems. She has a MSc in Global Business & Sustainability from the Erasmus University of Rotterdam, and a BSc in Business Economics with a major in Finance from Maastricht University.
Bram van Andel
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.
Katharina Bauer
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.
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.
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.
Olivier de Jonge
Olivier has joined us recently as an intern in the Sustainable Finance division. He has just graduated from his bachelor at the University of Amsterdam. There, he studied PPLE (Politics, Psychology, Law and Economics) with a specialization in Economics and Business. He wrote his thesis on the aviation industry and its use of unstandardized eco-labelling practices.
Energy, Water and Infrastructure
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.
Eliane Blomen
Eliane is a Senior Manager in the Energy, Water and Infrastructure (EWI) consulting team. She is an experienced energy professional with 15 years in renewable energy strategy and project development. She is a passionate and enthusiastic team player, who believes in the power of externalities to gain insights into and steer on impact.
Floor van den Elzen
Floor is a Team Lead in the Energy, Water and Infrastructure (EWI) consulting team. She believes in the use of a multi-capital and multi-stakeholder view to deal with strategic dilemma’s and is most happy when working with businesses to shape their role in a socially and environmentally just energy transition. Floor holds an MSc in Sustainable Development, specializing in Environmental Governance and a BA in History
Iwan Gerritsen
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.


Maël Denys
Maël is a Fellow in the Energy, Water and Infrastructure team. He holds a double master’s degree in Algebra, Geometry and Number Theory from Leiden University and the University of Padova. Prior to this he obtained a BSc mathematics from the university of Amsterdam.
Nikki Odenhoven
Nikki is a Fellow. She has a bachelor’s in biochemistry from the University of Glasgow and a Master’s in Environment and Resource Management from the Vrije Universiteit. She has previously worked as a research assistant exploring the use of artificial intelligence in healthcare. She enjoys following permaculture workshops and exploring new music, art and design.
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.
Responsible Value Chains
Andrea Rusman
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.
Marinka Ooteman
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.
Leanne Heuberger
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.
Susanna Balaguer Serra
Susanna is a Fellow within the Responsible Value Chains team with 2+ years of experience in impact and management consulting. She holds an MSc in Global Business and Sustainability from the Rotterdam School of Management, Erasmus University. She has been involved in agri-food value chain impact assessments both as content and process lead. Susanna is passionate about contributing to the transformation of livelihoods and value chains for the benefit of society.
Meike van Vlerken
Meike is a Fellow in the Responsible Value Chains team. She brings experience from a social enterprise monitoring working conditions in supply chains where she was project managing projects in different sectors for international clients. She holds a BSc in Economics & Business, is mission driven and has a specific interest in social impact in agri-food supply chains.
Marijke Huzen
Marijke is a Fellow in the Responsible Value Chains team. She has a Master’s degree in International Development Studies from the University of Amsterdam, where she focused on inclusive business models and social entrepreneurship. Prior to that, she did a Bachelor of Psychology at Utrecht University.
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.
TECHNOLOGY
Pietro Galgani
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 been working on the Global Impact Database since 2017. He has a BSc in International Development and MSc in Industrial Ecology, and he loves gardening, music and food.
Thomas Markus
Thomas is within the Data Team the Scrum Master. Thomas previously worked as a consultant, trainer and coach for entrepreneurs. He holds a Bachelor of Business Administration from the Hogeschool van Amsterdam and a Master of International Business from the Sunshine Coast University in Queensland, Australia. In his free time, Thomas enjoys traveling the world and connecting to people.
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.
Shu-Jung Liu
Shu-Jung is a Trainee. Participating in the InnoEnergy Master Program, she obtained her MSc of Sustainable Energy Technology in both Eindhoven University of Technology and the Royal Institute of Technology in Sweden. She also holds a BSc in Material Science from National Tsing Hua University.
Amber Agyemang
Amber is a Data & Modeling intern. She graduated from University College Utrecht with a Bachelor of Science, for which she obtained a double Major in Neuroscience and Mathematics and a Minor in Political Science. She is happy to start her career at the Impact Institute where she can learn how to make positive impact through Data Science.

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.
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.
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.
Thomas Markus
Thomas is within the Software Team the Scrum Master. Thomas previously worked as a consultant, trainer and coach for entrepreneurs. He holds a Bachelor of Business Administration from the Hogeschool van Amsterdam and a Master of International Business from the Sunshine Coast University in Queensland, Australia. In his free time, Thomas enjoys traveling the world and connecting to people.
Janna Goldstein
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.
Juan Manuel Aguero
Juan is a software developer who studied Anthropology at Universidad Nacional de La Plata, Argentina. He has worked in archaeological research, biological food production and digital marketing until he decided switching his career to Software Development. Juan decided to create a better world and, developing software that impacts the economy is the best way he has found to achieve this mission.
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.
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.
Reinier de Adelhart Toorop
Reinier is Head of Research and he leads the development of new impact methodology. Reinier is proud to have published a review article on True Cost Accounting in Nature Food. Previously he was Research Associate at Roland Berger Strategy Consultants. Reinier holds a PhD in Theoretical Particle Physics from Leiden University. He was a world champion in debating (English-as-a-second-language) and a silver medalist at the International Biology Olympiad.
Julia Demjanchenko
Julia is a Team Leader and an e-learning designer of Education at Impact Institute. She is an experienced syllabus developer, a YouTube educator, and an educational podcast co-host. Moreover, Julia holds a Cambridge certificate of Train the Trainer expert. She translates the course content into effective e-learning. Julia has extensive entrepreneurial experience and is a Meetup organizer. Previously, she obtained a Cambridge Master’s Diploma in Teaching Adults and M.A. in Management and Organisation. She loves organizing events and reading about instructional design and neuroscience.
Bart van Veen
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.
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.
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.
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.
PUBLIC ENTREPRENEURSHIP
Claire van den Broek
Claire is our Public Entrepreneurship 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.
Pietro Galgani
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.
Bart van Veen
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.

Dimitra Kanidou
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.
Fernanda Neisskenwirth
Fernanda is a Trainee at the Public Entrepreneurship team. She holds a master’s degree in International Relations in Historical Perspective with a research focus on Global Environmental Governance from Universiteit Utrecht. Prior to that, she did a Bachelor of Journalism at Universidad Diego Portales, Chile.
Sjoerd Blankenberg
Sjoerd is a Marketing & Communication Trainee and this is the start of his career. He holds a bachelor’s degree of Business Administration at the VU Amsterdam and a MSc of Global Business & Sustainability at the Erasmus University of Rotterdam. He loves wine, plants, food and cooking.
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
Stelios Dristas
Stelios is an intern on the True Price Team. He holds an integrated master’s in Crop Science from the Agricultural University of Athens, and he is currently completing a double master’s degree in Environmental Sciences and Climate Studies at Wageningen University. He is passionate about possible solutions to climate crisis challenges and looking forward to work for a more sustainable future.
Anne van Oers
Anne recently started as an intern in the True Price Team. She has a background in Environmental Sciences and Artificial Intelligence and is hoping to do a master’s in Sustainable Technology in Sweden after her internship. She is passionate about sustainability, doing sports such as football or salsa, and reading.
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.
GROUP SERVICES
Vicky Carreras
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.
Martha Dani
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.
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.
Christoph Meier
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.
Ellen Gale
Ellen is an Executive Business Assistant. Prior to working at Impact Institute she worked as a policy advisor for the creative industries at the Department for Culture in the UK, and is now turning her professional focus towards sustainability. Her BA and MA were focused on Modern Languages and Cultures, and she is passionate about ethical travel, languages and sustainable fashion.
LOOKING FORWARD TO MAKING AN IMPACT?
Find our current vacancies here.