From customer to colleague: Joost Wammes becomes Customer Success Manager
I spoke to four trainers. Three of them were mostly focused on their own offering. But with Klaas it was different.

In May I, Joost, was looking for a sales trainer. Not just any trainer, but someone who really listened. Someone who understood what I needed.
I spoke to four trainers. Three of them were mostly focused on their own offering. But with Klaas it was different.
I found him through Google, was struck by the professionalism of his website and booked a call. From the very first moment it clicked: his energy, his no-nonsense approach and his genuine interest made an immediate impression.
During the programme my enthusiasm grew, not only for sales but also for Klaas's mission: helping companies turn their customers into fans.
From now on I am stepping in as Customer Success Manager. An adventure that gives me an enormous amount of energy.

Klaas Kroezen is ondernemer die traint, coacht en spreekt. Hij schreef de #1 bestseller Sales, Oprecht & Ontspannen en het nieuwe boek Van klant naar fan (november 2026). Na 25+ jaar sales vanuit zijn eigen internationale marktonderzoeksbureau helpt hij organisaties met de mindset Van klant naar fan: oprecht en ontspannen verkopen, en met het hele team van klanten fans maken.
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