Meet the founder

Hi, I’m David Portenga — founder of Portenga Strength Co.

I’m a former multi-sport athlete and current competitor in both bodybuilding and endurance events. I’m also a junior at Calvin University studying Finance and Accounting with a minor in Entrepreneurship.

Through Calvin’s Startup Garage program, I’ve been challenged to turn my passion for physical fitness and athletics into something real — not just an idea, but a disciplined, structured business built to serve others.

I’ve seen firsthand how powerful training can be — not just for athletic performance, but for confidence, mental toughness, discipline, and growth in every area of life. That’s what drives me to coach.