Ross Stores, Inc., is an American chain of off-price department stores headquartered in Dublin, California, operating under the name Ross Dress for Less. It is the largest off-price retailer in the United States, though T.J. Maxx and Marshalls combined, both of which are owned by TJX Companies, would be larger together.As of August 2015 Ross operates 1,254 locations in 33 U.S.