A reseller is an entity that markets and sells payment processing services on behalf of a payment service provider or merchant service provider. The reseller relationship often entails a profit-sharing or commission-based model.

Resellers can include independent sales organizations (ISOs), financial institutions, consultants, and other service providers. Resellers play a crucial role in expanding the reach of payment processing companies, as they can leverage their existing networks and relationships to introduce new customers to the services.

However, this relationship also brings challenges, as the reseller may not have full control over the product or service being offered, and may need to work closely with the provider to ensure customer satisfaction.

It is also important for both parties to clearly define the terms of the relationship, including the commission structure, responsibilities, and any restrictions or requirements.