Amazon.com, Kohl’s, and Costco took the top spots in the 2011 Temkin Loyalty Ratings. We asked 6,000 US consumers to rate their level of loyalty to companies across three components: purchasing additional products and services, reluctance to switch business away, and likelihood to recommend the company to friends and relatives. This data allowed us to rate 143 companies across 12 industries. Only 17% of those companies received a “strong” or “very strong” loyalty rating. The results show that retailers have the highest level of loyalty while TV service providers and health plans have the lowest.