Personalized martial arts training for kids, teens, and adults across the Milwaukee area Where discipline, respect, and strength come together. Founded in 2003 by Sensei Mark Weinberg, Black Belt Leadership Academy helps students of all ages become stronger, more confident, and more disciplined — mentally, physically, and emotionally. Whether you’re 4 or 40+, our Milwaukee-area martial arts programs focus on personal growth through karate, self-defense, and supportive instruction. We welcome all skill levels and physical abilities, offering personalized challenges and progress markers in every class.