Mirjam van't Klooster
Partner Executive Coaching
As an organizational psychologist and executive coach, Mirjam has been guiding leaders, executives, and management teams for over twenty years through complex challenges in leadership, collaboration, and change.
Her strength lies in creating space for reflection, asking the right questions, and quickly bringing to light what lies beneath the surface.
With a background in organizational social psychology and extensive experience in coaching, assessments, and organizational development, she combines psychological depth with a keen eye for the context in which leaders operate. Her approach is thoughtful, practical, and results-oriented: free from unnecessary complexity, with a focus on both people and the organization.
She believes that sustainable leadership begins with self-insight. When leaders gain clear insight into their drivers, patterns, and impact, space emerges for better decision-making, stronger collaboration, and lasting development.
Onze andere teamleden
Nancy Koleda
Partner Peer Group Facilitation & Executive Search
Nancy's professional career began in the mid-90s at the Entrepreneurs' Organization (EO), where she focused on membership and chapter development. During this time, she discovered the transformative power of peer groups, which members consistently recognized as the greatest benefit of being an EO member.
Irene Oerlemans
Partner HR Consulting
After her studies at the Hoge Hotelschool The Hague and Cultural Anthropology in Amsterdam, Irene now has 25 years of experience in various (international) HR roles.
Barbara Lammers
Partner Executive Coaching
After studying Human Resources, Barbara Lammers started as a Recruitment & Selection consultant, after which, in the further course of her career, she gained twenty years of experience within various commercial service providers as HR Director.
Dieter van Veldhoven
Partner Executive Coaching
After studying at Eindhoven University of Technology, Dieter held a number of commercial positions in the business world before making the switch to leadership consultancy.
John Jake
Partner Boardroom Consulting & Executive Coaching
After studying law at the VU in Amsterdam, he gained experience in business, the legal profession, consultancy and various administrative and supervisory positions.
Boudewijn Roubroeks
Partner Leadership Development
Since completing the High Hotel School in Maastricht, Boudewijn has been active worldwide as a “Leadership Activator” for more than 28 years now.
Sylvia Massy
Interim Search & Recruitment Partner
After studying at the UvA, Sylvia Massy started her career in the temporary employment industry, where she held various positions within the Randstad holding, from intermediary to branch manager.
Mark Steinen
Founding Partner Executive Search
After studying Business Economics in Tilburg, Mark held various management and executive positions and made the switch to entrepreneurship as a partner at executive search agency De Vroedt and Thierry in 2009.
Get in touch for a good conversation
Learn how we can strengthen your organizational goals with the right leadership. Contact us today for an informal conversation. We find the perfect match for your organization.