Discover Financial Services is an American financial services company, which issues the Discover Card and operates the Discover and Pulse networks. Discover Card is the third largest credit card brand in the United States, when measured by cards in force, with nearly 50 million cardholders.The Discover Card was originally introduced by Sears in 1985, and was a unit of Dean Witter, which merged with Morgan Stanley in 1997. In 2007, the unit was spun off as an independent, publicly traded company. Today, Discover is headquartered in the Chicago suburb of Riverwoods, Illinois.
Discover Financial Services
P.O. Box 6103 Carol Stream, IL 60197-6103