About Sebastiaan

I’m Sebastiaan “Sub” de Ranitz, husband, father, and former Special Forces operator.

I’ve been happily with my amazing wife for over 29 years, and I’m a proud dad to two incredible kids, a 21-year-old son and a 19-year-old daughter. They inspire me every day.

We also have two loyal border collies who are always by my side, especially when I train. They bring me peace, grounding, and friendship.

With 25+ years of training experience and 20 years in elite military service, I now help busy dads around the world reset their bodies, rebuild their strength, and reclaim the energy and leadership they thought they lost.

My mission? To guide men back to the strongest, clearest, and most powerful version of themselves, physically, mentally, and emotionally.

My offer:
Cortisol Reset Method

“The 90-day Cortisol Reset Method helps dads 35+ build unshakable strength, boost energy, and burn stubborn fat, with focused workouts and proven strategies to lower stress and break through plateaus. No calorie counting. No cardio. Just results.”

Trainer at: Subtraining