We asked 6,000 U.S. consumers how much they trust different companies. The data allowed us to rate 143 companies across 12 industries. USAA and Amazon.com earned the top spots in the 2011 Temkin Trust Ratings while Comcast and Charter Communications dominate the bottom of the list. Only eight companies earned a “very strong” rating. Retailers, investment firms, and hotel chains have the highest average rating, while Internet service provider and TV service providers have the lowest.