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Costco Wholesale Corporation, trading as Costco, is an American multinational corporation which operates a chain of membership-only warehouse clubs. As of 2015, Costco was the second largest retailer in the world after Walmart, and as of 2016, Costco was the world's largest retailer of choice and prime beef, organic foods, rotisserie chicken, and wine.Costco's worldwide headquarters are in Issaquah, Washington, but the company opened its first warehouse in nearby Seattle in 1983. Through mergers, Costco's corporate history dates back to 1976, when its former competitor Price Club was founded in San Diego, California.
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