Equinox Holdings is a leading operator of high-end fitness clubs in New York City, Chicago, Los Angeles, San Francisco, and South Florida. Originally a regional operator competing primarily in the metro New York market, the company developed a nationwide presence under North Castle’s ownership, successfully opening 20 clubs in four new markets, developing the brand into a national lifestyle platform, and growing the member base from 37,900 to 91,000. In February 2006, Equinox was acquired by The Related Companies, which recognized that Equinox’s lifestyle brand, national footprint, and membership profile provided an opportunity to create a synergistic partnership and enhance both companies’ growth prospects.