“Can one captive processor own all card payments inside the sprawling Constellation Software portfolio?”
Founded 2012 as CSIPay, a payment processor for vertical-market POS/ISV software companies. Operates inside the Constellation Software / Jonas Software family and has evolved into the in-house payments arm serving CSI's 40+ portfolio operating companies across North America. Positioning has shifted from a general-purpose ISV processor toward enterprise PayFac-as-a-Service infrastructure dedicated to the Constellation ecosystem, with UK and Australia reach through CSI partners.
Constellation Payments discloses Fifth Third Bank as its sponsor bank, according to the Embedded Finance Index 2026.
Constellation Payments does not disclose a bank charter of its own; its banking services are provided through Fifth Third Bank.
Constellation Payments processes payments through Worldpay, Authorize.net, DataCap and NMI. Disclosed money-movement rails: ACH.
Constellation Payments's cards run on Visa, Mastercard, American Express and Discover.
Constellation Payments's investing and wealth products are powered by guideline.
The Embedded Finance Index 2026 maps 5 layers in Constellation Payments's stack: Payments / PSP (Worldpay, Authorize.net, DataCap and NMI); Money movement (ACH); Card network (Visa, Mastercard, American Express and Discover); Sponsor bank (Fifth Third Bank); Investing (guideline).
Constellation Payments is founded in 2012 and headquartered in Hatboro, Pennsylvania, USA (with office in Woodbury, NY).
Get a read on where your own stack stands against Constellation Payments and the rest of its category — what they built versus bought, which providers they use, and where the gaps in your own strategy and competitive set actually are.