Equinox Fitness is an American luxury fitness company which operates several separate fitness brands: Equinox, PURE Yoga, Blink Fitness, and SoulCycle. Within Equinox's portfolio of brands, there are more than 135 locations within major cities across the United States, as well as in London, Toronto, and Vancouver. Its global headquarters is in New York City, where there are currently 36 locations. The first Equinox Fitness location opened in Manhattan's Upper West Side by the Errico family on September 23, 1991. In 2006, The Related Companies purchased Equinox Fitness from North Castle Partners and J.W. Childs Associates. In 2008, Equinox brought Pure Yoga to the United States from Hong Kong, which it operates separately. In 2011, Equinox entered a new market by launching Blink, a separate fitness company with a value-driven membership model.