LA Fitness is a privately owned American health club chain with over 500 clubs across the United States and Canada. The company was formed in 1984 and is based in Irvine, California. LA Fitness was founded by Chin Yol Yi and Lewis Welsh in 1984 with one location in Los Angeles, California. Official records describing the company's history and growth are few. Through the mid-1990s, the company expanded by acquiring under-performing fitness clubs in Southern California, and by developing, opening and operating newly constructed properties. In 1995, LA Fitness designed and built a new multipurpose sports and fitness club that became the company's signature model at the time.
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