ODS’ connection to the not-for-profit world stems from the experiences of its team members. Aside from being respected consultants, each of the team members has previously worked in the not-for-profit sector, both in Brussels and internationally. For each project, we determine together with the client which of our colleagues are the best fit for the job and the organisation.

Team Members

Hans Wolters

Founding Partner

Hans is one of ODS’ founders as well as a managing partner. He is an organisational development expert with an extensive track record in successfully advising non-governmental organisations and complex international networks. As such, he has been involved in reorganisations, change management, strategy development and assessments of a broad variety of organisations worldwide.

Hans is a political scientist by training and worked in both the Dutch and the European Parliament. Hans headed Greenpeace’s European Unit in Brussels as well as WWF International’s Organisational Development Unit near Geneva before becoming CEO of the Resource Alliance and COO of the European Council on Foreign Relations in London. He is fluent in Dutch, English, French as well as German, and gets by in Italian.

Hans enjoys pinpointing organisational issues, advising senior managers and boards, improving stakeholder relations and helping organisations as a whole find the right way forward.

Julius Fastnacht

Project Assistant

Julius joined ODS for an internship in September 2019 as part of his Research Master in European Studies at Maastricht University in the Netherlands, where his particular focus is on issues related to European Union development cooperation. Julius´ undergraduate studies in Political Science at the University of Mannheim, Germany provided him with insights into the Brussels working world through practical stints at the European Parliament and the Brussels office of Deutsche Welle.

His qualitative and quantitative research skills are a great addition to the team at ODS. While here, Julius will support the team in the preparation and implementation of current projects through desk research, preparation of interviews and various administrative tasks. 

Eva Pollefort

Administrative Assistant

Eva is our administration and office manager since May 2019. Contracts, phone bills, invoices, but also the search for the best fairly traded organic coffee, usually go through her hands.

She previously worked six years as an administrative assistant in a Japanese private company in Brussels. She also has former work experience in the sector of development cooperation (mainly in West-Africa), where she worked for various governmental, non-governmental, and private organizations.

Eva holds a master in Economic Science from the University of Bonn, Germany. She speaks French, German, and English, and has a basic understanding of Spanish and Dutch.

Eva enjoys being the “Swiss knife” of ODS, where, be it indirectly through many small actions, she can contribute to the development of a world where justice and the respect for our planet and its people receive more attention.

Hanneke de Bode

Senior Researcher

Hanneke is one of the founders of ODS, where she is the most senior research and policy adviser. She is an expert in internal governance and developed ODS’ unique approach to nonprofit consulting, together with ODS consultant Kaat Boon.  

She is a theoretical and applied linguist by training and worked at the Institute of Social Studies in the Hague, the Dutch Refugee Council in Amsterdam, Tilburg University - where she chaired its Emancipation Committee - and chaired the Education & Welfare Committee in her Amsterdam Borough Council. As a consultant for Berenschot International in Brussels, Hanneke advised several Dutch regions on how to become ‘EU proof’ and worked for 3rd sector infrastructure organisations NCVO and ACEVO in London. She speaks Dutch, French, German, English and Spanish, and gets by in Italian. 

Hanneke enjoys working towards appropriate solutions in international and multicultural environments, especially where public authority meets nonprofit and content meets organisation.

Zdena Middernacht


Zdena is a research consultant at ODS. She leads research intensive evaluations with a focus on qualitative research methodology and also provides research support to other areas of work including strategy and organisational development. 

She has worked for development and human rights NGOs in South Africa and Belgium and in development consulting focused on fragile states in Africa and Asia. Some of the organisations she has worked for include Khulumani in South Africa, Save the Children and the Unrepresented Nations and Peoples’ Organisation (UNPO) in Belgium and Farsight (now Seefar) an international consultancy and social enterprise. Zdena is a thematic expert in intersectionality, transnationalism and development. This is also the focus of her PhD which she is completing with the University of Kent. She holds a Masters degree in International Relations from the Universita Cattolica del Sacro Cuore in Milan, Italy and a B.A Honours degree in Organisational Psychology from the Nelson Mandela Metropolitan University in Port Elizabeth, South Africa. She is a Zimbabwean native and speaks English, French and basic Dutch in addition to Ndebele and Shona. 

Zdena enjoys the holisism of organisational development work. She enjoys analysing the interconnections between the work of organisations and their macro and micro environments and assisting clients to find the balance that helps them achieve their goals.

Wouter de Iongh


Wouter has a law degree from the University of Amsterdam, and has extensive practical organisational development experience. His qualities complement those of the rest of the team, allowing ODS to offer an even more comprehensive range of services. Within ODS, Wouter is responsible for network cooperation, communications & (social) media and strategy.

In the Netherlands, Wouter was a legal expert for several CSOs, including Victim Support Netherlands. After a move to New York, he worked as a Comparative Legal Researcher for US and international clients, and as a Marketing and Communications Strategist for start-ups with a focus on tech and healthcare. In addition to this, Wouter has worked as a freelance writer and journalist with a keen interest in international politics.

In the complex Brussels landscape, Wouter de Iongh enjoys navigating the political sensitivities as well as the financial, organisational and cultural challenges of CSOs, funders, media and EU institutions.

Veronika Horvath

Head of M&E

Veronika leads the Monitoring, Evaluation and Learning (MEL) practice at ODS. Keeping up to date with the evolution of this exciting field, she works with our clients in designing and applying MEL frameworks to strengthen their work. She also leads the evaluation of programmes and facilitates learning and capacity building around MEL.

Veronika has more than 7 years of experience in research and evaluation. Prior to joining ODS, she focused on policy research and analysis at RAND Europe. She holds an MA in International Relations from the University of Florence.

In her work, she is passionate about finding evaluation approaches and frameworks in which NGOs, funders and programme stakeholders recognise themselves. She enjoys facilitating participatory, horizontal and longer-term thinking around evaluation. Veronika is building ODS’s practice of working with MEL approaches that reflect the complexity of contexts, stakeholders and the dynamic aspect of NGO programmes.  Her work focuses on distilling insights from multi-method research into practical recommendations for the everyday decisions of our clients.

Kaat Boon

Senior OD Specialist

Kaat is joining ODS in January 2018. She is an organisational development consultant. She has extensive experience working in the humanitarian sector having worked in the sector since 2006. Starting as a rehabilitation/shelter delegate, she broadened her technical expertise to general disaster management, with specific expertise in disaster preparedness and disaster risk reduction, capacity building, governance, supply, partnership management and gender based violence. Kaat’s main professional interest is understanding how to turn complex challenges into opportunities to improve humanitarian action. Kaat holds a Masters in Civil Engineering and Architecture from the Catholic University of Leuven, and has training in International Relations and Conflict Prevention.

Anna Cesari


Anna Cesari is an organisational development and evaluation consultant at ODS. Since joining in 2016, Anna has been responsible for leading projects to develop organisational, operational, and networking structures and capacity for NGOs and INGOs. Anna has also led and participated in evaluation and strategic review projects to better position organisations with their programming and operationalisation. Her thematic experience is focused on (social) justice, having advised organisations working on anti-corruption, human rights and social inclusion.

Anna also has experience in leading and developing international and pan-national projects. Previously, she worked as a Network Associate at the International Debate Education Association, responsible for coordinating network activities across Tunisia, Macedonia, Kyrgyzstan, the UK and the US, as well as serving as the internal Project Manager for the Brussels office.

Anna holds two Master’s degrees: one in Languages for Communications in Businesses and International Organisation from the University of Modena, and another in International Politics from the University of Bologna. A native Italian speaker, Anna is fluent in English, French, and Spanish, having lived, studied and worked in Belgium, Spain and Australia.

Emma Harte


Emma Harte is a monitoring and evaluation consultant at ODS. Emma ́s professional background is in formative, real-time, and ex-post programme and policy evaluations, and policy research and analysis. Emma has worked extensively with the European Commission and UK public and private sector clients, primarily in the evaluation of services and programmes. She has a range of methodological expertise including interview, focus group and survey design, conduct and analysis, document, literature and systematic reviews, and reporting. In addition, she has experience in project management at national and international level, having recently coordinated and delivered a multi-partner pan-European project.

Emma has a M.Sc. in Comparative European Politics, with qualitative and quantitative components, from Trinity College Dublin, and a B.A. in European Studies, French and anthropology, from the National University of Ireland, Maynooth. She is a native English speaker, and fluent in French having lived, studied and worked in France and Belgium.

Lisa Marie Salley


Lisa Marie Salley is a research and evaluation consultant at ODS. Lisa Marie has extensive experience working with a variety of NGOs, foundations and institutions across the human rights and social justice field. Most recently she worked with CHOICE for Youth and Sexuality, the World Organisation Against Torture and the Council of Europe on LGBTI rights. She has a range of qualitative research expertise including in conducting interviews, document reviews and survey design in addition to analysis and report writing.

Lisa Marie has an M.Sc. in Human Rights, completing a thesis on the implications of Ireland’s system for the reception of asylum seekers on the European Convention on Human Rights, and a B.A. in Politics and International relations from University College Dublin. She is a native English speaker.