Edeka Zentrale is Germany's largest grocery retailer and wholesaler with more than 15,000 outlets; largely independent retailers supplied by its own regional food wholesalers. Locked in a battle for market share in Germany with its larger rivals, including METRO AG and REWE, Edeka has has exited foreign markets, including Austria, and sold stores and other assets. Its grocery stores operate under the Netto, E Aktiv Markt, and E Center banners, among others. The German grocer also operates drugstores, several food-processing and wine operations, a publishing house, and a banking subsidiary. In 2011 Edeka acquired Ratio Trading Group, which operates retail outlets in the Lower Saxony and Ruhr area.