Build a Profitable Gym with FitBuild
From concept to grand opening (or full turnaround), we help personal trainers and investors create high-performing boutique gyms — without wasting time, money, or energy on what doesn’t work.
We Build Results — Not Strategies.
At FitBuild, we launch your gym to 100 members in the first quarter — or we work for free until you do.
That’s the FitBuild Guarantee.
Build. Rescue. Scale.
FitBuild helps you turn your fitness vision into a profitable, smooth-running business.
We’ve spent over 20 years opening, managing, and optimizing fitness studios across the world — from Bangkok to New York and the Netherlands.
Now, we help other gym owners do the same — with a proven, step-by-step system to build or fix your fitness business.
We Don’t Just Talk Fitness --We Build It.
From Bangkok to New York to the Netherlands — we’ve opened 4 gyms of our own and helped launch 3 franchise studios. Two of which we helped build up during the Covid-19 pandemic times.
We know the grind. We’ve done the 6 a.m. opens, the late-night closes, and everything in between. Our studios are still thriving today because we know what it takes — from building a dream to keeping it alive.
Now, it’s your turn.
We’re here to help trainers and investors who are ready to build something real — with proven systems, experience, and passion that actually deliver.
We’ve done it. Now we’ll help you do it too.
MAXFIT Performance our first gym in Bangkok 2010 - 2012
An indoor bootcamp style workout space. We grew from 20 members to over 200 in 1 year
Our second & third gym location in Bangkok 2012- 2017
MAXFIT Bangkok
A boutique personal training/small group training experience in downtown Bangkok and Nichada Thani
Leefstijlcentrum Haaglanden The Netherlands 2023 - now
Our first health and wellness center which combines modern Egym equipment with physiotherapy, diet coaching, and lifestyle consultations — delivering a complete, well-rounded approach to health and fitness.
F45 studio Great Neck New York 2019 - 2020
Our first experience with opening up a franchise location. We were credited with being the fastest growing F45 franchise in the entire East Coast!
The FitBuild Promise & Guarantee
At FitBuild, we don’t just talk about results — we guarantee them.
✅ Our Promise:
In your first quarter, we’ll help you attract and close your first 100 clients.
✅ Our Guarantee:
If we don’t deliver on this promise, we’ll keep working for free until we reach it — no excuses.
We believe in teamwork, accountability, and real, measurable results.
Because at FitBuild, your growth is our mission!
1️⃣ Gym Startup Program
We help you design, build, and launch your boutique gym from scratch.
From business model and floor plan to pricing strategy and team setup — we'll work with you as if it was our own business!
Result:
→ Your gym opens on time, looks amazing, and runs smoothly from day one.
2️⃣ Gym Rescue & Rebuild
If your current gym is struggling — low sales, poor systems, no clarity — we step in, find actionable solutions, and rebuild it from the ground up.
Result:
A refreshed brand, more leads, more sales, and more income!
WHY FITBUILD
You don’t just get consultants.
You get a team that’s built and lived it.
We’re Stefan & Marie, a husband-and-wife team with 20+ years of international experience.
We’ve launched and sold gyms, coached thousands of clients, and built communities that thrive.
We’ve done it all — and we teach from real, hands-on experience.
Most fitness businesses struggle or fail not from lack of effort, but from lack of a proven framework for growth.
We’ve built it — and now we’ll help you use it.
OUR STORY
From One-on-One to All-in-One:
Our Evolution in the Fitness Industry
We started in the trenches — training clients one-on-one, learning what works and what doesn’t.
That drive grew into two thriving fitness studios in Bangkok, the launch of a successful F45 franchise in New York, and now a full-scale integrated health and wellness center in the Netherlands.
We’ve helped countless people transform their lives — and now, we’re helping fitness professionals transform their businesses.
After years of travel, testing, wins, and lessons learned, one truth stands out:
A great fitness business isn’t built by luck — it’s built by design.
And that’s exactly what FitBuild delivers — the proven shortcut to building a successful fitness business.
Why spend years figuring out what works (and what doesn’t) when we can show you how to start strong, grow smarter, and scale faster?
HOW WE WORK (PROCESS)
The FitBuild System:
1️⃣ Assess & Plan – Whether you’re starting fresh or rebuilding, we evaluate your business, identify gaps, and create a roadmap to attract and convert 100+ clients in 3 months.
2️⃣ Launch & Client Acquisition – We guide you through pre-sales, marketing, and sales strategies to fill your business fast and start generating revenue.
3️⃣ Grow & Optimize – Once your business is running, we help you retain clients, scale efficiently, and turn your fitness venture into a thriving, profitable enterprise.
Each step is personal, practical, and proven.
The FitBuild Guarantee
✅ Our Promise:
In your first quarter, we will help you close your first 100 clients.
No excuses. Just results.
Ready to Build (or Rebuild) Your Gym?
Stop guessing and start building with a proven system.
We’ll walk you through every phase — so your gym becomes the business it’s meant to be.
📅 Book Your Free FitBuild Strategy Call
(Limited slots per month — we work closely with every client.)