LA Fitness, a prominent gym chain with over 700 locations across the United States and Canada, is a privately owned company. It was co-founded by Louis Welch and Chin Yol Yi in 1984 in Los Angeles, California. Over the years, the company expanded by acquiring struggling fitness clubs and developing new properties. Notably, Louis Welch is still heavily involved in the company and is recognized as the Co-CEO and President of LA Fitness International LLC. Despite being a major player in the fitness industry, the founders and key personnel of LA Fitness tend to maintain a low profile in the public eye oai_citation:1,Who Owns LA Fitness? (CEO, Corporate & Franchise Explained) oai_citation:2,LA Fitness – Wikipedia.

Louis Welch, with a net worth estimated at $2.5 billion, has been a significant figure in the fitness industry since the early 1980s. In addition to his role at LA Fitness, Welch has various other investments and is known for his philanthropy and support of the arts. He and his wife, Michu Yi Welch, are based in Los Angeles, California, and are dedicated to promoting fitness and healthy living oai_citation:3,Louis Welch Net Worth, Age, Wife, Middle School, Biography – The Net Worth.