Our Trainers — Graham Hulsebos Sales Training
The trainers behind Graham Hulsebos Verkooptrainingen
Sales training only works when the trainer knows what happens in practice. Both trainers learned their craft from the inside, not from books, but from hundreds of real conversations.
Graham Hulsebos — Lead Trainer
Graham built his sales career from clothing retail to managing a call center of 40 people, from B2B telephone sales at Goudengids to senior sales and training roles at New Horizons across seven locations. In 2015 he founded Graham Hulsebos Verkooptrainingen with one conviction: selling is a science, not a talent.
His method combines 12 sales techniques with 11 scientifically grounded topics. Thousands of sales professionals across the Netherlands have been trained using this system. In 2025 he was named the best sales trainer in the Netherlands.
- 30+ years of sales experience
- Specialisms: cold calling, SPIN selling, closing skills, DISC communication
- Trains in Dutch
- Available for open classroom training and in-company training
Contact: [email protected]
Kyle Campbell — English Sales Trainer
Kyle brings over eight years of sales experience, from enterprise environments selling IBM and Lenovo solutions to scaling with Zoom across international markets. He has worked with some of the world's largest organisations and fastest-growing startups. His specialism: helping people communicate with clarity, confidence, and purpose.
His training sessions are practical, immediately applicable, and always grounded in real sales experience. Kyle believes the best sellers are proactive, curious, and coachable — and he brings that same philosophy into every training room. He is the national champion of English public speaking in the Netherlands and speaks English, Dutch, and Spanish.
- 8+ years of sales experience in enterprise and international environments
- Specialisms: business development, prospecting, pitching, public speaking
- Trains in English
- National champion English public speaking in the Netherlands
Contact: [email protected]
Training sessions are held at our locations in Almere, Amsterdam, Utrecht, Rotterdam, Eindhoven, Zwolle, and Groningen. In-company training is available anywhere in the Netherlands.