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Study: Costco, Amazon tops in customer loyalty
Costco, Amazon.com and Apple rank highest in customer loyalty, according to this year’s Net Promoter Consumer Study.
The study ranks more than 220 brands, such as Costco, Amazon.com, Apple and more across 22 U.S. industry sectors, including financial services, insurance, technology, online entertainment, retail stores, electronics, travel and hospitality, and telecommunications.

