Merchant Account Super ISO Explained:
What is a Super ISO? A Super ISO, sometimes referred to as a Tier 1 ISO, is a very large sales organization that resells the merchant account contracts of a direct processor through a network of ISOs and sub-ISOs. Super ISOs are typically not direct processors themselves; rather, they are major, full-service sales entities with their own in-house support teams.
Super ISOs will often provide credit card processing services for many smaller sales organizations and then allow these organizations to offer merchants access to the products and customer support provided by the super ISOs. Two prominent examples of super ISOs include iPayment and First American Payment Systems.