Managing Editor Overall, the retail sector dropped 2.3% in customer satisfaction to a score of 75.5 â the lowest ACSI score logged for the sector since 2015. Following four years of fairly steady customer satisfaction, the supermarket industryâs rating in this area has dropped 2.6% to a score of 76 out of 100, with 17 of 20 major grocers earning lower scores year over year, according to data from the American Customer Satisfaction Index (ACSI). Monrovia, California-based Trader Joeâs is No. 1 in the supermarket industry â as well as the entire retail sector â with a stable score of 84, with four companies tying for second place with scores of 82: Costco (down 1%), H-E-B (down 2%), Publix (down 1%)Â and Wegmans (down 2%). The remaining top-tier performer from 2019, Aldi, slid 4% to tie with a stable Samâs Club at 80.