Personal coaching
For people looking for direction, facing important choices or wanting to develop further in work and life.
Learn moreSometimes you do not need a standard solution, but someone who listens, asks the right questions and thinks alongside you from experience. ACSB supports individuals, entrepreneurs and organisations with personal development, business growth and commercial challenges. Personal where it needs to be, business-focused where appropriate, and always aimed at sustainable progress.

For people looking for direction, facing important choices or wanting to develop further in work and life.
Learn moreFor entrepreneurs, managers and professionals who value an experienced sounding board for growth, change and leadership.
Learn moreFor organisations and professionals who want to make better use of commercial opportunities, strengthen relationships and grow sustainably.
Learn moreTemporary expertise and practical support for commercial, organisational or strategic challenges.
Learn moreAnd behind every professional choice is a personal story. That is why ACSB looks beyond figures, roles and targets. Experience, attention and a practical approach come together to clarify what is happening, where the opportunities lie and which next step truly fits.
You are facing a career choice or leadership question, or want to develop further and are looking for an experienced sounding board.
You want to grow or change and need a sounding board who looks independently, thinks commercially and helps sharpen your choices.
You want to become a stronger leader, develop your team and achieve commercial growth within your organisation.
You are looking for commercial expertise, temporary support or guidance during organisational change.
Practice, not theory, is the starting point.
ACSB combines over 30 years of experience in entrepreneurship, sales, management and business development with many years of personally guiding and advising people and athletes.
This creates an approach that is personal and human, while also clear, realistic and results-focused.
More about my storyMore than 30 years of practical experience as an entrepreneur, commercial professional and coach.
Guidance that goes beyond advice — I stand alongside you.
Results-focused, committed and always honest.
Tailored to every situation, never a standard approach.
In a no-obligation conversation, we discuss where you are and what you are facing.
Together, we clarify the challenge and the direction you want to take.
We turn insights into concrete steps aimed at sustainable results.
Practical experience, personal attention and honest advice form the foundation.
Over 30 years of practical and entrepreneurial experience
Personal attention and a confidential approach
Honest advice, even when it is not the easiest answer
Experience with people, organisations and commerce
Tailored support: no two people or organisations are the same
Read experiences from people and organisations who have worked with ACSB and Willem Jan.
View the referencesWould you like to know what ACSB could mean for you, your team or your organisation? Let us start with an introduction. No obligation, personal and without a complicated process upfront.