Discover the people, purpose, and passion driving your growth.
At Ambitsi, we believe every person has the power to grow—not just for themselves, but for everyone around them.
We’re here to guide you toward becoming your strongest, boldest, and most fulfilled self.
Honesty
We believe in radical transparency. No empty promises—only honest, proven strategies that deliver.
Loyalty
We walk every step of the journey with you—no matter where you start or where you want to go.
Pride
We take deep pride in delivering high-quality, practical tools that empower real growth—so you can unlock your full potential and be proud of yourself too.
What makes Ambitsi different?
We’re not just a platform—we’re a team shaped by real-life, high-stakes experiences. At Ambitsi, our background in elite military and law enforcement special forces has taught us this truth:
High performance isn’t a talent. It’s a decision, forged by discipline, clarity, and action.
Our e-learning courses are built on proven methods used by the world’s top performers—so you can apply them immediately and start seeing results fast.
About the founder
Martijn Sonderwal
CEO | Entrepreneur | Performance coach
Martijn knows exactly what it takes to unlock human potential—because he’s lived it.
With a career in elite military and law enforcement special forces and years of high-performance coaching, he saw too many people stuck in theory, lacking action.
That’s why he created Ambitsi:
To bring practical, no-nonsense training to anyone ready to take control of their life—fast, effective, and deeply motivating.
'HIGH
PERFORMANCE ISN’T A GIFT—IT’S A CHOICE. MASTER YOUR MINDSET, SHARPEN YOUR
SKILLS, AND TAKE CONTROL OF YOUR FUTURE.'
- Martijn Sonderwal
What we do for you
We don’t just teach—we ignite action. Through focused, bite-sized microlearning, we make personal development enjoyable, accessible, and transformational. Our mission is simple:
Inspire, equip, and empower you to create a life of clarity, confidence, and achievement.
Why our mission matters
Today’s world moves fast—and too many people get left behind. Workplace pressure, social media, relationships, school—every area demands more from us. Without human skills like emotional intelligence, resilience, and effective communication, it’s easy to burn out. But these skills aren’t optional anymore. They’re the key to not just surviving—but thriving.
Together we can change the world
We believe human skills should be available to everyone—students, professionals, leaders, and future changemakers. Our vision is bold:
To make Ambitsi the go-to performance academy for people who want to grow, lead, and leave a legacy.
Because when more people grow, the world grows with them.
Join us today!
This is your invitation to start. Your journey toward clarity, confidence, and high performance begins right here—right now. Join us—and unlock your best self.