Complex tasks where interests converge

At WesselinkVanZijst, we help organizations and their stakeholders solve complex societal challenges, building mutual trust and respecting all interests.

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Groningen Seaports embraces SSE: ‘Everyone is a bit of a stakeholder professional’

Stakeholder orientation
Infrastructure & Transport
Eric van Vliet
Jan-Pieter van de Weerd
/ Project

SSE moves into new phase at the Port of Rotterdam: ‘You notice that there's a solid foundation here’

Infrastructure & Transport
Annelies Claessens
Jan-Pieter van de Weerd
Marc Wesselink
/ Project

Stakeholder orientation as the new standard: how we do it at Gasunie

Stakeholder orientation
Energy
Bianca Boverhoff-van der Meer
Robin Schram
/ Project

Strategic stakeholder engagement now also across the German border: ‘They said it was exactly what they needed’

Eric van Vliet
/ Project

Looking for a location for new nuclear power plants: This is how we ensure a thorough process

Energy
Ingrid van den Brink
Mart Scheepers
/ Project

Collaboration between WesselinkVanZijst and the Central Government Real Estate Agency: ‘It's essential to truly involve the outside world in what you do’

Defence
Bas Liebeek
/ Project

Getting the entire neighborhood on board with a residents' initiative? Here's how we did it in Amersfoort

Zita van Aggelen
/ Project

Hans van Zijst on his seven years in Amsterdam's Zuidas district

Urban area development
Hans van Zijst
/ Project

Joint Fact Finding for an Event Site in Amsterdam

Joint Fact Finding
Jeroen Medema
/ Project

From a second opinion to an integrated participation process on water safety and public spaces in Durgerdam

SSE in Projects & Programs
Water
Hans van Zijst
Tom den Boer
/ Project

Developing a district heating network in urban areas: a stakeholder oriented practice at Vattenfall HEAT

Energy
/ Project

Evaluation of BLVC Measures for the Redevelopment of Vijzelstraat

Urban area development
Hans van Zijst
/ Project
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Project related publications

Who we are

Meet our team

Christa de Jong

SSE Academy Employee

Christa de Jong

As an employee at the SSE Academy, Christa considers it important that everything runs smoothly and that everyone receives the correct information on time. Therefore, she works closely with our trainers and their schedules. Besides her work at WesselinkVanZijst, Christa can regularly be found on the padel court, or out and about with her husband and twins.

Elianne in het Veld

Senior consultant

Elianne in het Veld

Elianne combines the methods of process management and strategic environmental management with the substantive aspects of assignments to get stalled initiatives back on track. She organizes the connection of stakeholders to the task, the commitment of the involved parties to the outcome of the process, and administrative decision-making.

Robin Schram

Senior consultant

Robin Schram

Robin has a natural drive to resolve misunderstandings and bring harmony to conflict situations. As an advisor, trainer, and head of knowledge development, he advances SSE across all areas. He played a leading role in developing the SSE COMPASS, was actively involved in embedding SSE and environment-oriented work within organizations, and as a process facilitator, he is familiar with the realities of project development and execution. In addition to his core tasks, he also plays an active role within the MGA Network and the CBI Global Network.

Mart Scheepers

Senior consultant

Mart Scheepers

Mart makes complex interests understandable and prefers to look for creative solutions. As a senior advisor, and also the first employee at WesselinkVanZijst, he works both at a strategic level and with his feet in the clay. He fulfills various roles, from stakeholder engagement professional to project leader and discussion facilitator, and has experience in a wide range of sectors. Mart sees that the Netherlands faces many complex challenges in maintaining and improving quality of life, and has therefore been particularly active in the energy transition in recent years.

Marloes Kramer-Hammenga

Senior consultant

Marloes Kramer-Hammenga

Marloes is convinced that connection is the driving force behind solving societal challenges. As a senior SSE consultant, she works on various assignments in rural areas, infrastructure, and water. Driven by a natural curiosity to understand others' stories, she is a strong link between the assignment and stakeholders. Additionally, she trains professionals in SSE at the SSE Academy and is active in the political arena.

Eric van Vliet

Senior consultant

Eric van Vliet

Eric van Vliet has over 30 years of experience as a project and process manager in complex assignments where many interests converge. He most enjoys working on assignments where the pressure is high: he brings structure, creates progress, and knows how to connect parties who are seemingly at odds with each other. This is why Eric is often deployed to apply and integrate SSE in complex infrastructural projects, particularly in energy and mobility.

Chantal Polhout

Financial and Project Employee

Chantal Polhout

Numbers and people make Chantal happy. As a financial employee, she is responsible for the financial administration. She ensures that projects are well-prepared and tracked, supports trainers and consultants, and is an important source of information for management. In addition to her core tasks, she also works with the secretariat to create a pleasant office atmosphere, partly by organizing and planning exciting team outings.

Thijs Kraassenberg

Director

Thijs Kraassenberg

Thijs is betrokken bij maatschappelijke vraagstukken die partijen in de publieke sector en het bedrijfsleven niet alleen kunnen oplossen. Hij bouwt en begeleidt samenwerkingen in situaties die onder druk staan. Thijs voelt zich in zijn element wanneer het ergens om gaat en hij beweging kan brengen. Vanuit een grote betrokkenheid werkt hij aan het overbruggen van verschillen en oplossingen voor mensen en organisaties om wie het draait. Dat doet hij voor initiatieven op het gebied van energie, ruimtelijke inrichting, industrie en onderwijs. Daarnaast is hij actief als trainer en is hij altijd bezig met vak-ontwikkeling.

Marc Wesselink

Director, Co-founder

Marc Wesselink

Marc is a committed advisor. He grew up in the 80s, which laid the foundation for his social engagement. Marc is disturbed by the fact that a lot of social impact is lost due to unprofessional stakeholder management. In terms of money, but also in terms of time, quality, emotion, and missed opportunities for a better living environment. His ambition: to professionalize consensus-oriented stakeholder management in the Netherlands. That's why he has spent the past 20 years developing the SSE concept: Strategic Stakeholder Engagement.

Linus Bohlsen

SSE Academy Employee

Linus Bohlsen

As an employee of the SSE Academy, Linus supports the resolution of logistical and challenging puzzles. For example, he maintains the training schedule and contact with trainers, participants, and clients, but he also analyzes and automates the Academy's processes and workflows. In addition to his work at WesselinkVanZijst, Linus is pursuing a master's degree in Sustainable Development at Utrecht University and is a neighborhood mediator.

Janneke Eberson

Office Manager

Janneke Eberson

Janneke was de tweede medewerker die in dienst trad bij WesselinkVanZijst. Als officemanager regelt zij de logistiek op kantoor. Ze verzorgt het agendabeheer van Marc Wesselink en ondersteunt hem daar waar mogelijk. Daarnaast coördineert zij de organisatie van de trainingsactiviteiten en heeft daarbij contact met de trainers, de deelnemers en de opdrachtgevers. Janneke houdt van regelen en organiseren en zorgt ervoor dat de trainingen tot in de puntjes voorbereid zijn.

Jan-Pieter van de Weerd

Consultant

Jan-Pieter van de Weerd

As a consultant at WesselinkVanZijst, Jan-Pieter excels at translating (geo)politics, power dynamics, and multi-stakeholder processes into strategy and actionable solutions. His studies in Political Science and Business Administration have equipped him with a sharp analytical eye, enabling him to quickly interpret administrative relationships. He undertakes consulting assignments across diverse sectors – including industry, ports, and various government bodies – and has notably designed and guided strategy and change processes for clients such as the Port of Rotterdam and Groningen Seaports.

Ingrid van den Brink

Consultant

Ingrid van den Brink

In elk project wat ze doet, zorgt Ingrid ervoor dat belanghebbenden zich écht serieus genomen voelen. Ze startte in de hydrologie en werkt nu bij WesselinkVanZijst als adviseur en trainer. Hier richt ze zich op uiteenlopende opgaven in de energiesector, het landelijk gebied, de waterwereld en het sociaal domein. Haar ervaring en kunde in het vormgeven en begeleiden van omgevingsstrategieën en -processen neemt ze mee in haar werk als trainer. Daar hanteert ze de wijsheid van de groep en draagt ze als SOM Academie-teamlid bij aan het vormgeven van onze trainingen.

Ilay Beeldsnijder

Consultant

Ilay Beeldsnijder

Ilay prefers to focus on conflict resolution in societal issues. He operates from the idea that conflict transformation leads to a better situation than before the conflict. Ilay has a legal background and regularly facilitates neighborhood mediations and mediation competitions. At WesselinkVanZijst, he fulfills various roles, from independent process facilitator to stakeholder engagement manager, in sectors such as energy, water, and defense, among others.

Fleur de Groodt

SSE Academy Employee

Fleur de Groodt

Fleur is driven by customer contact and, together with her colleagues, is the calling card of the SSE Academy. Here she supports the planning of training courses and maintains contact with trainers, participants, and clients. Outside of work, Fleur enjoys relaxing with her son and partner, as well as in the kitchen, where she enjoys baking for friends and family.

Jeroen Medema

Senior consultant

Jeroen Medema

Jeroen prefers to work as an independent process facilitator, serving the process. As a strategic stakeholder engagement professional and MfN-mediator, he focuses on diverse issues. From area development and drinking water extraction to safety and defense. He uses this experience and expertise in implementing and using SSE weekly in his work as a trainer and coach. Jeroen is particularly specialized in Joint Fact Finding (JFF), co-author of the SSE Practical Guide, and regular co-host of the "Proef op de SOM" podcast.

Bas Liebeek

Senior consultant

Bas Liebeek

Bas advises and assists organizations in solving complex, strategic issues with many different stakeholders. Based on genuine attention to all interests, he jointly investigates solutions that deliver value for all stakeholders. In his work, he combines his background as a business administration expert and his experience in various international sectors with a natural interest in a stakeholder oriented practice. Additionally, he is co-founder of the "Proef op de SOM" podcast, in which he and his colleague Jeroen Medema discuss a theme related to strategic stakeholder engagement in each episode.

Stefan Szepesi

Director

Stefan Szepesi

Stefan's great passions are hiking and negotiation. He is a former diplomat and founder of the expertise network Negotiation & Public Service. Stefan's preferred focus is guiding complex negotiations. Through training, he helps others become better negotiators. And his children ensure that he continues to learn every day.

Esther Vriesendorp

Senior consultant

Esther Vriesendorp

With extensive experience in strategic communication and training as a mediator, Esther gets stalled processes moving again. Over the past twenty years, she has worked in various roles for organizations in the non-profit sector, the energy sector, healthcare, education, and with governments on current societal issues. Within WesselinkVanZijst, Esther uses her experience as a senior advisor for Strategic Stakeholder Engagement. Her strength lies in connecting organizations and people, clarifying interests, and creating space for dialogue and mutual understanding.

Annelies Claessens

Senior Advisor, Trainer

Annelies Claessens

Annelies is a conflict management expert, mediator, and former director of various social organizations. For the past 20 years, she has worked in conflict zones and in her home country, the Netherlands, developing creative and sustainable solutions for societal challenges. As a senior advisor and mediation lead, she is involved in change processes, partnerships, and disputes involving government, citizens, and businesses.

Hans van Zijst

Co-founder, Trainer

Hans van Zijst

Hans is mede-oprichter van WesselinkVanZijst. Hij is op 30 juni 2024 met pensioen gegaan, maar blijft als senior trainer verbonden aan ons bureau. Hij is een van de meest ervaren strategisch omgevingsmanagers van Nederland en is vooral thuis in de publieke sector. Hij combineert inhoudelijke kennis op het gebied van milieu, natuur, water, energie, infrastructuur, ruimtelijke ordening en duurzaamheid met resultaatgerichte inzet, bestuurlijke sensitiviteit en sterke mondelinge en schriftelijke kwaliteit.

Christa de Jong

SSE Academy Employee

Christa de Jong
Elianne in het Veld

Senior consultant

Elianne in het Veld
Robin Schram

Senior consultant

Robin Schram
Mart Scheepers

Senior consultant

Mart Scheepers
Marloes Kramer-Hammenga

Senior consultant

Marloes Kramer-Hammenga
Eric van Vliet

Senior consultant

Eric van Vliet
Chantal Polhout

Financial and Project Employee

Chantal Polhout
Thijs Kraassenberg

Director

Thijs Kraassenberg
Marc Wesselink

Director, Co-founder

Marc Wesselink
Linus Bohlsen

SSE Academy Employee

Linus Bohlsen
Janneke Eberson

Office Manager

Janneke Eberson
Jan-Pieter van de Weerd

Consultant

Jan-Pieter van de Weerd
Ingrid van den Brink

Consultant

Ingrid van den Brink
Ilay Beeldsnijder

Consultant

Ilay Beeldsnijder
Fleur de Groodt

SSE Academy Employee

Fleur de Groodt
Jeroen Medema

Senior consultant

Jeroen Medema
Bas Liebeek

Senior consultant

Bas Liebeek
Stefan Szepesi

Director

Stefan Szepesi
Esther Vriesendorp

Senior consultant

Esther Vriesendorp
Annelies Claessens

Senior Advisor, Trainer

Annelies Claessens
Hans van Zijst

Co-founder, Trainer

Hans van Zijst

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