Bally Total Fitness is one of the health club leaders in the United States. The club offers personal training as well as group fitness classes. The company is one of the largest and only nationwide commercial operators of fitness centers with approximately 400 clubs in the United States, the Caribbean, Mexico, S. Korea and China. Based in Bronx, N.Y., it offers its members a variety of classes, from Pilates to martial arts. Bally Total Fitness also designs and builds world-class of health clubs.