What is SISU?

Sisu is a Finnish word for extraordinary grit, courage, and stubborn determination. It means pushing forward and taking action even when a situation feels impossible or hopeless. It isn't about a sudden burst of bravery, but a quiet, continuous mindset that refuses to give up.

This word was chosen as our namesake because our founder resonated with the idea. It was something that he felt all of his life, but could not put it into simple words. We aim to respect this aspect of Finnish culture and continue to embody this value while providing you with our best, just as you will use SISU to provide yours.

Our Founders

Our Mission

We exist to give back to the sports that we love by making advanced analytics and team management features available and affordable to athletes and coaches. We aspire to accomplish this goal by lowering the barrier to participating in multi-disciplinary training and improve injury risk and race readiness assessments for users. We will continue to serve you by continuing to research and develop features and analytics that will enhance your ability to track, plan, and adjust your training.

What We Value