Curves International, also known as Curves for Women, Curves Fitness, or just Curves, is an international fitness franchise co-founded by Gary and Diane Heavin in 1995. Curves was said to have 10,000 locations worldwide and an estimated 4 million plus members in October 2006. In May 2012, the company's website listed 3,175 locations in the United States. The company is privately held by its co-founders, with corporate offices located in Waco, Texas.