Domino's remains the dominant player in the $12 billion domestic pizza delivery category. The company generates revenue through franchise royalties, company-owned stores, and sales from its 17 dough-manufacturing and supply-chain centers. Of the 8,729 stores in 60 countries as of March 2009, 4,498 are operated by domestic franchisees, 3,742 by international franchisees, and 489 are company-owned. Domino's posted $5.5 billion in systemwide retail sales in 2008.