U.S. Issuer Processor Market Analysis

Issuer processors are the infrastructure behind every card swipe, but their role is often misunderstood. A transaction flows from the merchant’s terminal to the network, which routes it to the processor that decides whether to approve or decline it, checking the account and applying authorization rules in milliseconds. Without that layer, there is no authorization, no clearing, no payment. This report explains how the market has evolved across three generations, with profiles of eleven leading providers: CoreCard, Episode Six, SoFi Technology Solutions, Highnote, Increase, Lithic, Marqeta, Qolo, Stripe, Thredd, and Zeta.

How an issuer processor differs from a program manager

Most new card programs start with a program manager, a bundled platform wrapping the issuer processor together with banking sponsorship, compliance, servicing, and fulfillment. An issuer processor is the layer underneath: the system with a direct connection to the payment networks (Visa, Mastercard, American Express, and debit networks like Shazam and Pulse) that checks the ledger for available funds or credit and returns an approval or decline. A program manager gets a team to market faster with less upfront capital; going direct trades that speed for control over authorization rules and ledger design, plus ownership of functions like vendor management and compliance. Totavi advises teams through exactly this decision as part of our technology development and advisory work.

Three generations of issuer processors

First-generation processors, including Fiserv, FIS, Jack Henry, and TSYS, run on mainframe infrastructure built for an era of physical banking: robust, but rigid. Second-generation providers such as CoreCard, SoFi Technology Solutions (formerly Galileo), i2c, and Marqeta, founded between the late 1990s and 2010, added APIs and virtualized infrastructure for prepaid cards and digital wallets. The current, third generation, including Episode Six, Highnote, Lithic, Qolo, Stripe, Thredd, and Zeta, is cloud-native from the ground up, launching to non-bank platforms, from B2B tools like Ramp and Brex to consumer brands like Chime and Bilt, that once needed a chartered bank’s own infrastructure to issue a card.

What the data shows

Issuer processing remains one of the most concentrated segments of the payments industry, and the last year has brought significant consolidation. FIS completed its acquisition of Global Payments’ Issuer Solutions business (formerly TSYS) in early 2026, Euronet Worldwide acquired CoreCard in October 2025, and Computer Services, Inc. acquired Qolo in July 2026. At the same time, the boundary between processor and bank is narrowing: Increase combined with a newly acquired bank charter to form Increase Bank in July 2026, and Cross River, Lead Bank, and Column have each invested in proprietary processing infrastructure. Totavi estimates the U.S. issuer processor market generated $8.8 billion in revenue in 2026, split between $6.9 billion in traditional processing and $2.0 billion across modern platforms, a 22 percent modern share that is up from a smaller base in prior years.

Where the issuer processor market is headed

We project the market will grow to $16.8 billion by 2035, a 7.5 percent compound annual growth rate in real terms, as modern processors grow fivefold, from $2.0 billion to $9.0 billion, and capture more than half of the market for the first time. Credit remains the most lucrative segment, generating an estimated 48 percent of revenue on a smaller transaction share, while non-traditional issuers, marketplaces, gig platforms, and vertical SaaS companies extend the market well beyond banks. The report closes with guidance on when to launch with a program manager versus going direct, and why building an in-house processor, as Chime eventually did after a 2019 vendor outage, is rarely the right call outside a small number of companies for whom processing is core to the business.

For related market analysis, see Totavi’s Debit Card Program Management Platform Market Analysis, Credit Card Program Management Platform Market Analysis, Data Aggregator Market Analysis, and Disbursement Cards Market Analysis, or browse the full research library.