Visa earns data processing revenues from the authorization, clearing, settlement, transaction processing services and other maintenance and support services that facilitate transaction and information processing among customers globally and Visa Europe.

FORBES: Three Businesses Make Visa Worth $86

Flexible mechanisms that facilitate innovation, as well as the orderly and transparent processing of distressed assets, the unwinding of government ownership, crisis resolution, consumer protection and insurance.

FORBES: IBM Researchers on Markets -- Opacity is Profitable

Visa earns revenues by charging fees for its transaction processing service, which involves routing payment information to facilitate the authorization, clearing and settlement of transactions.

FORBES: When Visa Hits $92, Don't Say We Didn't Tell You It Was Going There