Founded in 1985, Discover Financial Services, formerly a business segment of Morgan Stanley, is best known for issuing Discover-brand credit cards, which are used by more than 50 million members at some 4 million merchant locations in 30 countries and territories. The company’s cards, which include several levels of business and consumer cards, repay cardholders a percentage of the purchase price each time they use their cards. Discover Financial Services also has a payment-processing network and owns the PULSE Network ATM system.