The person who built IKU, KETTLEBELL MONSTER™, and Cavemantraining. A programmer who became a kettlebell educator, an educator who became an institution builder.
Taco Fleur is the founder and lead educator of International Kettlebell University. He holds certifications from every major kettlebell system worldwide, has authored more than twenty books on kettlebell training, and has personally educated 26,000+ students across multiple continents.
Before kettlebells, he spent more than a decade as a software developer — building applications for banks, government agencies, and his own ventures. That analytical background shapes everything IKU teaches: every exercise explained through biomechanics, every movement broken down from the ground up, every coaching cue backed by a reason.
He still personally reviews every IKU certification assessment. That has not changed since the first one.
Born in Amsterdam in 1973. Raised in care institutions. Departed home at fifteen. Enlisted in the Dutch Royal Air Force at sixteen. Left the Netherlands at nineteen. Every step that followed was self-directed.
Taco’s first computer was a Sharp MZ-800, loaded from cassette tape. That led to a Commodore 64, then to building professional software. In Spain, he created banking and real estate applications for clients. In Australia, he worked at Suncorp and the Queensland Government on enterprise systems. Around 2004 he built ClickFind.com.au — a search engine that separated products and services before Google Maps offered that functionality.
Years behind a desk produced chronic sciatica. In 2004, through opening a gym, he picked up a sixteen-kilogram kettlebell for the first time. Instead of simply learning movements, he took them apart — studying why the hip extends at a particular moment, what the foot does against the ground, which muscles engage and in what sequence. The programmer’s instinct to understand systems became the foundation of a teaching methodology.
“The programmer never left. He just switched languages — from code to movement.”
Together with his wife Anna — an Australian fitness trainer he met in Torremolinos, Spain — Taco founded Executive Results in 2004 in Brisbane. In 2009 they opened THE TOUGH SPOT, followed by a second location in Albion. The training was raw and intense: circuit-style boot camps, outdoor sessions on concrete, tires and kettlebells everywhere. Around 2014 they opened GYM ELITE in Danang, Vietnam — introducing functional training and kettlebells to that region for the first time.
Running physical gyms taught a hard lesson: the reach and the freedom are in digital education. In 2009, Cavemantraining launched online. What began as a WordPress site grew into an international publishing and training property, including a YouTube channel, a community, books published across Amazon, iTunes, and Google Books, and four articles in Iron Man magazine.
Before its initial release, the KETTLEBELL MONSTER concept appeared at KettlebellExercises.fitness as a kettlebell exercise encyclopedia. KETTLEBELL MONSTER was initially released on January 2, 2023 as the software platform where training, programs, and community are delivered.
“To make it work, you have to commit. Really commit. You have to want it. You cannot give up.”
IKU LLC was formed in New Mexico on February 4, 2025. It is the company behind the three connected brands: IKU (education, standards, methodology, certifications, and professional trainer development), Cavemantraining (content, books, workouts, articles, and long-standing publishing), and KETTLEBELL MONSTER™ (the software platform and ecosystem where training, programs, and community are delivered).
Taco obtained certifications from both sides of the kettlebell world — because the biomechanics do not change based on which federation teaches them. This cross-system expertise is the reason IKU is methodology neutral.
Historic channel totals, not current live-platform metrics.
The Fleur family has lived across three continents. The list reads like an itinerary that never quite settled — until it did.
Taco works alongside his wife Anna. Anna, an Australian fitness trainer, is his long-time training partner. They train together, travel together, and have run every business together since they met in a bar in Torremolinos in the late 1990s.
“Wherever I lay my kettlebell, that’s my home.”
These are not corporate values drafted by committee. They are convictions that accumulated over fifteen years of building, failing, rebuilding, and teaching.
Not a category inside a general fitness app. Not a hashtag. Not a Facebook group controlled by an algorithm. A dedicated institution where every course, every certification, every piece of content exists because the kettlebell community requires it.
Anyone can demonstrate a swing. IKU teaches why the hip extends at that precise moment, what the foot pushes against, which muscles fire in which order. Comprehending the biomechanics means you do not simply perform a movement — you command it.
The kettlebell world carries tribal loyalties. Hardstyle versus Sport Style. IKU’s founder holds credentials from both traditions. The iron does not care what school you came from.
If your entire business, community, and content library can be erased by an algorithm with no recourse, you own nothing. You are leasing space on someone else’s ground. IKU and KETTLEBELL MONSTER™ are built on infrastructure we control.
When someone reaches out for help, they speak to a person. Not a chatbot. Not a template. Not a wall. That commitment does not diminish as the organisation grows.
Educating people in proper technique is not a marketing strategy. It is the entire purpose. Every course, every certification, every resource exists to make kettlebell training safer, deeper, and more effective.
“Stop making excuses, commit to it, and take a small step. Those small steps will become part of your life as long as you repeat them. Then they will become bigger steps, and then it will just become a lifestyle, and you will love it. Pick up a kettlebell and just do one thing with it.”
— Taco Fleur