Developed by the National Quality Research Center (NQRC) at the Stephen M. Ross Business School at the University of Michigan, the ACSI measures customer satisfaction with the products and services of approximately 200 companies in 43 household consumer industries. From airlines to wireless telephone service, happy customers return and this index can give you a good idea of how happy customers are when using your category of product or services.

The American Customer Satisfaction Index – The Voice of the Nation’s Consumer