24 Hour Fitness has about 3 million members and nearly 400 24 hour fitness locations in 17 states, and over 20 clubs in five Asian countries. 24 Hour Fitness worked with NBC to develop a reality show, The Biggest Loser, which features 12 to 22 overweight contestants competing to lose weight over several million dollars.
Besides the USA, it has centers in Asia (Singapore, Hong Kong, Taipei and Taichung in Taiwan, Beijing and Shanghai in China) through its wholly owned subsidiary California Fitness, its former centers in Korea, Thailand, and Malaysia have closed or been sold off, of which franchised gyms (Korea only) being abruptly closing on contracted members without reimbursement.