Companies processing large volumes of transactions can opt to license their own payment gateway. This allows large operators to cap their annual costs. In addition, The Enterpise EPG allows very tight coupling with backend systems such as auditing, stock management etc. A range of coupling technologies such as MQ Series, RMI/Corba or direct access to encrypted databases could be employed.

The Enterpise EPG also has the advantage that it can be tuned to fit any business model. This allows companies to operate a business model that is best for their bottom line rather than subject to the limitations of a software appication.

Other payment providers operating third party products are unable to match the flexibility offered by Enterprise EPG.