A company that specializes in the issuance of Travel and Entertainment (T&E) cards. American Express services the cards it issues, serving as its own transaction processor with its own processing network.
American Express (or Amex) is one of the main international credit card payment schemes. Unlike Visa and MasterCard, the other main payment schemes, Amex also issues cards itself. It is also responsible for operating the money transmission networks which link outlets, acquirers and issuers.
International banking and finance corporation offering charge cards which can be accepted by Card Processing customers. Retailers must hold an agreement with American Express.