Wisconsin-based 21-store chain to begin transition February 1 Byron Center, MI, 2016-1-7 — /EPR Retail News/ — SpartanNash (Nasdaq: SPTN), the nation's fifth largest food distributor and leading distributor to U.S. military commissaries and exchanges in the world, announced today that it has signed a long term contract to be the primary wholesaler to Gordy's Market, the…