FINANCIAL INSTITUTIONS Financial institutions include commercial banks, S&Ls, credit unions, finance companies, and brokerage houses. Financial institutions are the major interface with retailers for establishing credit card programs including authorization, transaction processing, and check clearance. Financial institutions are also a major marketeer of check verification/guarantee services.
MARKET STRUCTURE ? The market for credit card authorization/check guarantee services focuses on consumers. In the aggregate, the size of the potential marketplace is defined by 1984 industry based data statistics: Credit cards: seven billion transactions with a total volume approaching $300 billion.