Zūm Rails Adds Embedded Card Payments
Fintech company Zūm Rails has expanded its payment stack to include customizable, embedded credit card acceptance. The offering is aimed at SaaS and consumer platforms, lowering the barrier for developers and indie hackers to integrate modern payment experiences directly into their products.
- Zūm Rails was co-founded in 2019 by Marc Milewski, a payments industry veteran from one of Canada's first EFT gateways, and Miles Schwartz, who previously focused on data aggregation. They bootstrapped the company to $10 million in annual recurring revenue before securing their first institutional funding. - The new feature was enabled by a partnership with financial services giant Fiserv, which allows Zūm Rails to operate as a payments facilitator (PayFac) in both the U.S. and Canada. This status means Zūm Rails can manage merchant onboarding, settlement, and compliance for its clients. - This launch completes the company's "all-in-one" platform, which they call ZūmOS, a financial operating system for businesses. The single API consolidates credit card acceptance with existing support for bank rails like ACH, RTP, and FedNow, open banking data, and card issuing. - Before adding card acceptance, the company partnered with Mastercard in August 2025 to launch a suite of prepaid card programs. This allows platforms to both issue debit and credit cards and now accept card payments within the same infrastructure, a key combination for embedded finance applications. - The company raised its first venture capital, a $10.5M CAD Series A led by Arthur Ventures, in February 2024 to accelerate its U.S. expansion. At the time of funding, Zūm Rails was processing over $1 billion in payments per month. - Early adopters for the new embedded card payments include Canadian brokerage platform Questrade and real estate marketplace Zolo. Other major clients using their payment infrastructure include Western Union and Desjardins, the largest federation of credit unions in North America.
