You must login or register to view hidden content on this page.
For many years I have been using this company NMI Payment Gateway, they are one of the most interesting providers around with the endless ADD ons and API's for integration into almost anything you can think of. https://www.nmi.com/payment-facilitator-technology
You must find a MAP in order to work with them, however, you can also go the other way around, you simply call them (pick up the phone) and speak with them about what you are doing and what you are looking for.
They have the world wide largest network for acquiring banks and ISO's you can think of.
There is not much to tell about, the NMI payment gateway has been around for the last 20 years, they have one of the worlds largest network of acquiring banks and MAP's connected to their gateway. If you can find a way to get out of them a list of who they are connected with you would have the most comprehensive list of payment processors ever.
Their tech support is nice. I used them years back with a long gone payment processors CNP Worldwide.