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In the U.S. there are four major nationwide wholesale suppliers to hardware stores. All four report more than $1 billion (US dollars) in sales annually. Three of them operate as retailers' cooperatives: Do It Best Corp, from Fort Wayne Indiana, True Value Company from Chicago Illinois and Ace Hardware from Oakbrook Illinois. Hardware store owners purchase stock in these suppliers and are "members" and "owners" as well as customers. A hardware store may choose to include the name of the cooperative in the advertised name of the store.