Whole Foods Market is a supermarket chain that sells natural and organic food through its stores across the US, Canada, and UK. The company has undergone significant developments over the years, including going public in 1992, launching its website in 1999, introducing its own brand of organic products in 2003, and acquiring Amazon in 2017. Whole Foods Market's business strategy is based on product differentiation, targeting upper-middle-class customers who are willing to pay extra for healthy and natural foods. The company operates through several store brands and provides customized online shopping experiences.