About us. With more than 300 locations across the globe, The Little Gym is the world’s premier enrichment and physical development center for kids 4 months through 12 years. For over four decades, The Little Gym has helped millions of kids experience the thrill of achievement, develop new skills, and find new confidence through a variety of gymnastics-based programs. Parent/Child, Pre-K and Grade School classes are all taught in a clean, fun, saf...