From customer
to fan.
An 8 is a customer. A 9 or 10 is a fan. And that difference is up to you.
Your customer doesn't see departments, but one company. Every contact counts, from the first conversation to the invoice. In this book you discover how you and your colleagues make the difference together: customers who stay, buy more and recommend you with enthusiasm. And colleagues who proudly tell people where they work. Every chapter gives you something to do tomorrow, and the free scan shows you right away where you and your team stand. Dutch edition.
Hardcopy · E-book · Audiobook (Dutch)
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Out of 10 leads, 1 or 2 became customers. Now it's 7 or 8. Not by pushing harder, but by being genuinely interested.
More revenue, less stress.Turning customers into fans, together.
Whether you sell or help customers every day: I show you how your whole team turns satisfied customers into fans.
Go straight to: Sales Excellence TrainingCustomer Success TrainingInspiration session
- 4.9 on Google
- #1 at Managementboek
- Bestselling author
- 9.1 from participant evaluations
You make fans with everyone.
Your customers are satisfied. They give you a 7 or an 8. And yet they sometimes quietly move to a competitor. Or you go for it, and a colleague just doesn't.
An 8 is a customer. A 9 or 10 is a fan: they stay, buy more and recommend you. You make that difference together, in every contact, from marketing and sales to support. And the work becomes more enjoyable, for you and your colleagues.
Real contact.Measurable results.
Honest and relaxed may sound soft. It delivers hard numbers.
“Not by pushing harder, but by being genuinely interested.”
“We started helping our customers differently: 118 reviews with an average of 4.9.”
Mitchel Welling, owner WRA JuristenThey went before you.Teams making fans together.

MT/Sprout
Management, MT and account managers together in the Sales Excellence Training.

Vasco Consult
The whole team of consultants. The best presentation won the champagne.

Bluefield / EY
The Sales Excellence summer training with the consultants.

Noldus
Consultants with customer contact in the Customer Success Training.

TND Real Estate
First an inspiration session, then the training with the whole team.

Lumans.ai
The founders invested in their sales right from the start.
How it works together.
Measure
Know where you stand. Start with the free scan for yourself or your team.
Train
Work on exactly what the measurement shows. For salespeople and for everyone with customer contact, or with your whole team in an inspiration session.
Sustain
A full year of practice: look back every month and score yourself again. Want to go further? Then I coach you personally for a year.
Choose what suits you.From a free start to a year together.
Start small with the scan or a book, or get going right away with a training, an inspiration session for your team or coaching.
1 / 9 · swipe for more

Klaas Kroezen.An entrepreneur who trains, coaches and speaks.
I know how it feels: you work hard, your customers are satisfied, and yet it stays stuck at an 8. With 25 years of international experience I built a customer research agency that studied what customers really experience in 21 countries, for Google, Microsoft, ING and Samsung.
After selling that company, I help teams turn customers into fans, as a trainer and speaker. Honest and relaxed, with an approach that works. I wrote two books about it: Sales, Oprecht & Ontspannen and Van klant naar fan.
- Years of experience
- 25+
- Years of experience
- Countries
- 21
- Countries
- On Google
- 4,9
- On Google
- Management book
- #1
- Management book
Start today.With the free scan.
In a few minutes you see where you or your team stand, and what your next step is.
- 4.9 on Google
- I teach every training myself
- 25+ years of experience







