Walmart, Costco, Kroger, Home Depot and Target remain the leaders of the U.S. retail industry. Overall, 76 of the 250 retail chains with the largest annual revenue in the world are American retailers. That means that 30% of the global retail chains that qualified for the 2015 Word’s Largest Retail Chains list are based in the U.S. That’s down from 33% from the 2014 global retail revenue rankings.