The Cold Calling Blueprint TM.
The #1 sales training for cold calling.
Give your cold acquisition a systematic structure. Avoid objections, book more meetings, and close more deals.
Known from the Best Sales Podcast
Who is Karel-Oscar van Hengel?
Karel-Oscar van Hengel is the fastest-growing sales trainer in the Netherlands and the market expert in cold calling. His videos on Instagram inspire thousands of followers, and he helps founders and sales managers turn cold acquisition into a predictable system with better conversations, more meetings, and more customers. He answers the question, “How do I get to the table with the customer?”
At the age of 29, he built a recruitment agency in Paris (without speaking the language) and set up a French-speaking sales team within six months. That practical experience now forms the basis of his training courses.
He is the most viewed guest on De Beste Sales Podcast and is known from the Podcast Groeivoer. He has also trained more than 500 sales professionals, from scale-ups to listed companies with more than €350 million in annual revenue. His focus: making cold calling easy, human, and effective.
TRACKRECORD
This is not just any training. It is a transformation.
Sales is psychology. It’s not just about what you say, but how you say it. Our training is about more than just scripts and techniques – it’s about building confidence, breaking mental blocks and developing a mindset that allows your team to not just call, but to dominate.
What exactly do you get?
- A proven acquisition process: Don't guess, but know what works.
- Psychology of Sales: Understand how customers think and make decisions.
- Live cold call sessions: Not just listening, but immediately applying.
- Objection handling mastery: From "no interest" to an appointment.
- Individual feedback: Personal coaching that makes an immediate impact.
🎯 “After the first training I thought: this really works. And it’s fun too!”
⚡ “I never expected to embrace acquisition, but now I look forward to it.”
🔥 “This is not standard sales training. This is next level.”
What our customers say.
Onlangs heb ik een ontzettend leerzame training mogen bijwonen bij Karel-Oscar. De waardevolle tips die hij heeft gedeeld, kon ik direct toepassen in de praktijk. Het resultaat? Meteen vooruitgang in mijn werk!
Een concreet voorbeeld: door tijdens cold calls een duidelijke en relevante voicemail achter te laten, merk ik dat directeuren sneller geneigd zijn om terug te bellen als ze niet meteen kunnen opnemen. Een kleine aanpassing met grote impact!
Dankjewel, Karel-Oscar, voor de inspirerende inzichten en praktische handvatten! 🙌
Karel-Oscar heeft ons team geholpen met het opbouwen van ons sales team en ontwikkeling van onze sales processen. Zijn aanstekelijke energie, no-nonsense attitude en hands-on aanpak zorgden ervoor dat we direct resultaat zagen. Geen theoretische verhalen, maar een executie gedreven aanpak waarmee we meteen aan de slag konden. Karel-OPscar is een aanrader voor wie zijn salesproces naar een hoger niveau wil tillen.
Na de training met KO is mijn kijk op cold calling absoluut in positieve zin veranderd Karel-Oscar heeft me niet alleen technieken bijgebracht, maar ook extra zelfvertrouwen gegeven om gesprekken aan te gaan met een positieve mindset. Zijn training is van het begin tot het eind boeiend en de persoonlijke opvolging is een grote plus. Ik kijk nu met meer vertrouwen naar cold calling en ben blij met de vaardigheden die ik heb opgedaan. Bedankt, Karel-Oscar, voor je inspirerende begeleiding!
Met ons team hebben wij een aantal sessies gehad van Karel-Oscar over cold calling. Een goede, pragmatische salestraining waarbij Karel-Oscar de psychologie achter het salesproces ontleedt. Als één van de weinige salestrainers belt hij daadwerkelijk mee in de bel-training en geeft hij hele handige en vooral praktische tips. Dit maakt de drempel laag en de toepasbaarheid hoog. Gaaf om te zien dat het team hierdoor in korte tijd al successen geboekt heeft. Het werkt dus écht 🙂
Karel-Oscar is a great Sales trainer with vast experience in the recruitment industry. After completing his Cold calling training, I realised that it is such a shame that we were not taught this way of calling in the beginning of a recruitment career. Karel-Oscar makes it easy and fun while providing effective tools for further use. The best part is that he actually dives deep into individual problems and provides solutions that are tailored to everyone’s needs. For the ones struggling with cold calling I can definitely recommend Karel-Oscar.
I conducted the training with KO and since then my view for cold calling has changed completely! I was feeling extremely scared before, and now this feeling is much more manageable 🙂 Even if I make a mistake, I am not afraid to continue picking up the phone and continue trying! In general, my confidence level over the phone has been boosted a lot and I strongly recommend having this training!
The process: How we move you to success.
We start by reprogramming how you view sales. From “I’m selling something” to “I’m helping someone. This changes everything.
You’ll get a proven approach to cold calling and acquisition, including frameworks for successful calls and techniques for engaging prospects.
No role plays, but real calls with real prospects. Immediately experience what works with real-time coaching.
Objections are not obstacles, but opportunities. Learn how to effortlessly turn every objection into a deal.
Everyone receives targeted coaching to leverage their unique strengths and consistently bring in more clients.
🔝 “KO puts his money where his mouth is. He calls in LIVE and shows how it’s done.”
🔄 “I went from panicking at a ‘no’ to relaxed persistence and winning.”
💰 “One little mindset shift and BAM – more appointments, more sales.”
What's in it for you??
✅ More self-confidence in yourself and the team = more action, fewer excuses.
✅ Structured acquisition = predictable growth in customers and revenue.
✅ Conversations with decision makers = no more wasting time on wrong leads.
✅ Higher conversion rates = from 2% to 45% is no exception.
✅ Instant impact = your team books same-day appointments.
🔥 “One of the appointments KO called live became a client. That says it all.”
🚀 “Since the training, our team books 3x as many meetings.”
💡 “I now see cold calling as a branding call and that has changed everything.”
Do you want this too?
You know acquisition is the engine of your business.
The question is: will you miss opportunities or will you win?
Schedule a call with Karel-Oscar and find out how we take your team to the next level.
Frequently asked questions.
👉 Yes. Everyone who takes the training picks up the phone faster and books more appointments. Even the biggest doubters turn into confident professionals.
👉 Simple: we dial in live, many other trainings are based on marketing, inbound leads and trainings from the 80s, we test our material every day and adapt it directly on the same day. Just hands-on and immediate results.
👉 Right! Knowledge = sales. They don’t have to become “hard sellers,” but they do have to be able to have effective conversations.
This is the moment.
Do you want this too?
You know what is needed. You know what is possible.
The only thing missing now? Action. 
Schedule a call with Karel-Oscar and find out how we make your team win.
Latest news & updates.
- Karel-Oscar van Hengel
If you want to close more deals and make your life easier, read on. In the last 18..
- Karel-Oscar van Hengel
(1) “It takes too much time.” At least that’s what we think, no travel time, oops no preparation..
- Karel-Oscar van Hengel
Do you secretly dream of greeting everyone with high-fives because of the success achieved?…..or is this just a parody..
