Alex Castillo was raised in Barcelona. As a teenager he trained for years without results — until he placed himself in the hands of a trainer and a dietitian, and was transformed. The lesson stayed with him: the difference was never effort. It was structure. Work smarter, not harder.

At twenty-two he moved to Australia, where he worked for gyms and fitness influencers training their clients — and watched an industry sell noise: promises, urgency, spectacle. He chose to quit his job and start on his own, building a structured system based on honesty and realistic goals, where results come from what is executed, not from what is claimed.

That method became Castillo — a private firm that manages its clients’ health the way a corporation manages its affairs: quietly, completely, and to a standard.

Formally qualified in Spain — Higher Technical Degree in Physical Conditioning (Técnico Superior en Acondicionamiento Físico), an official qualification of the European education system.

The practice today: in-home personal training across Miami, held within one complete system — and, for clients abroad, online personal training.

Request your assessment — complimentary, and private.