shaw's and star market are wholly owned subsidiaries of the boise, idaho–based albertsons. the combined chain has the largest base of stores that operate in new england, but is the third-largest new england-based grocer behind quincy, massachusetts-based stop & shop and scarborough, maine-based hannaford; hannaford operates stores in upstate new york while stop & shop's operations extend through downstate new york and into new jersey; only shaw's does business solely in new england.