MasterCard Credit Card Issuer

A bank or financial institution that issues MasterCard credit cards and is a member of the MasterCard network.  A MasterCard issuer is a financial institution that issues MasterCard cards.  The bank or other financial institution that extends credit to a credit card holder through bank credit card accounts with the MasterCard agreement.  The financial institution issues a credit card and bills the card holder for purchases against the bank credit card account.