F45 Training Holdings Inc. is a fitness franchise that offers high-intensity interval training (HIIT) workouts. The company was founded in 2013 in Australia and has since expanded to over 1,500 studios in 40 countries. F45 Training's workouts are designed to be challenging, fun, and effective, and are led by certified trainers. The company's mission is to help people around the world become healthier and happier through fitness.