I had the pleasure of participating in training sessions facilitated by Jeroen at both Pon and Howden Thomassen, and I can confidently say his approach stands out.
Jeroen combines deep expertise in team and organizational development with sharp observational skills. He quickly grasps the dynamics within a group and knows exactly where the real opportunities for growth lie. What makes him particularly effective is his ability to strike the right balance between allowing discussions to unfold and intervening at the right moment with targeted insights.

He does not shy away from putting the confronting reality on the table, always with the clear goal of helping individuals and teams move forward. This creates an environment that is both safe and challenging, where real progress is made rather than just discussed.
If you are looking for someone who goes beyond superficial facilitation and truly initiates development, then Jeroen is an excellent choice.


Iwan Smit
Vice President
Howden

I have known Jeroen for almost 20 years and during this period I have had the pleasure of working with him on various leadership development programs, team coaching sessions and culture workshops.
Jeroen has the capability to analyse and understand team dynamics quickly and can explain what he sees effectively, which is very helpful in growing both personally and as a team.
He is very committed and reliable; he is sharp in his analysis and a very pleasant person to work with!


Jan Wolter Oosterhuis
Managing Director Heavy Marine Transport
Boskalis

Jeroen combines a sharp, external perspective with a deep understanding of the organization. He quickly grasps the context, identifies patterns, and knows how to translate them clearly and constructively into concrete steps. He is always constructive and solution-oriented.
His approach is both strategic and actionable, without ever losing connection with the target audience. I have experienced Jeroen as a true partner in our collaboration. In short: looking for someone who analyzes sharply, communicates clearly, and executes effectively? Jeroen is the right choice.


Maryam Leenheer
Manager Learning & Development
Newtone advisory & accountancy

Working with Jeroen over many years and across multiple organizations has been a consistently positive professional experience. His ability to read the room, understand the underlying dynamics, and translate that into meaningful interventions is exceptional.

Whether guiding leadership teams through complex changes or helping groups strengthen communication and collaboration, he brings a calm presence, deep listening, and a genuine curiosity that makes people feel seen and supported.

What sets him apart is his talent for designing programs that meet teams’ needs and gently but effectively move the group forward. Every time I’ve worked with him, the result has been real change, renewed energy, and a stronger sense of connection within the group.
I can recommend him wholeheartedly to any organization looking for a thoughtful, skilled, and truly impactful coach or facilitator.


Maris Paap
Operations Director
Primo Marine Group.

During our years of collaboration, I have come to know Jeroen as an exceptionally sharp coach and facilitator. Jeroen has a special talent for holding up a mirror to people, not superficially, but with focused, penetrating questions that force you to truly look at yourself. His understanding of people is profound and his advice is always honest. Jeroen does not shy away from difficult conversations; on the contrary, he seeks them out when necessary, always from genuine commitment.

What further sets Jeroen apart is his ability to bring structure to complex situations. He knows how to keep a team or organization focused on agreed commitments, not by applying pressure, but by setting clear expectations and consistently holding everyone accountable to them.
In addition, Jeroen is punctual and reliable in everything he does. He always keeps his promises.
I wholeheartedly recommend Jeroen as a consultant and management coach. Anyone looking for someone who can move your organization or yourself forward with honesty, structure, and depth has come to the right place.


Arno Ruijzenaars
Founder & CEO
VANMOKUM