Best On-Premises Payment Facilitation (PayFac) Platforms of 2025

Exact Payments develops and delivers easy-to-integrate and highly scalable payments technology for SaaS companies to seamlessly embed payment flows into their software and activate a new, high-margin revenue stream. With Exact’s PayFac-as-a-Service solution, SaaS providers build frictionless buying journeys that enhance customer experience, improve retention, and increase the lifetime value of a customer by as much as 5x. Today, Exact processes >1 billion transactions annually for prominent customers, including Chase, Ordway, Cineplex, Allianz, Levi’s, and Carfax.

UniPay is a commercial, open-source payment gateway that uses modern technology. It can be easily adapted to any business size. We are the payment processing company that provides connectivity, security, and valuable support around the world. Our advanced technology and functionalities allow us to address the unique needs of each customer. This includes merchant onboarding and underwriting, advanced chargeback management, Acquiring Relations development, Payment Facilitator assistance and implementation of EMV terminal solutions. UniPay Platform offers a white label solution that is affordable, as well as an on-premise software license (including source code), and the PayFac Payment Platform that ensures high-quality payment processing.