Financial infrastructure companies don't sell directly to consumers — they sell the banking licence, ledger, card-issuing rails, and API layer that other fintechs and non-financial brands build their own products on top of. Banking-as-a-Service (BaaS) is the best-known piece of this category: a fintech or retailer can launch an account or a card product without becoming a licensed bank itself, because the infrastructure provider holds the licence underneath.
The category has grown fast because the alternative — becoming a licensed institution yourself — takes years and serious capital. Europe's Banking-as-a-Service market alone is estimated in the region of $9-10 billion today, with forecasts putting it above $30 billion within the next decade as more brands choose to embed financial products rather than partner with a traditional bank directly.
The licence model is the real product
The core decision underneath every financial infrastructure provider is what it's actually licensed to do, because that determines what its customers can build. A provider with its own banking licence can offer deposit-taking and lending directly. One operating as an e-money institution can issue accounts and cards but can't lend against deposits the way a bank can. Some infrastructure providers don't hold a licence at all and instead sit on top of a sponsor bank's licence — a faster way to launch, but one that adds a third party into every regulatory conversation.
That distinction became commercially important after several sponsor-bank-model BaaS providers ran into difficulty in 2023 and 2024, which pushed both providers and their fintech customers toward directly-licensed infrastructure — a model that removes a layer of tri-party complexity and is easier to explain to regulators and enterprise customers alike.
DORA turned infrastructure providers into a supervised risk, not just a vendor
Financial infrastructure providers occupy an unusual regulatory position: they aren't always regulated as heavily as the banks and fintechs that depend on them, but since January 2025 the EU's Digital Operational Resilience Act (DORA) requires the regulated institutions using them to treat critical infrastructure providers as a formally assessed risk — maintaining a register of ICT third parties, classifying and reporting major incidents on tight deadlines, and in some cases subjecting critical providers to direct oversight. A financial infrastructure provider that can't produce the operational-resilience evidence its regulated customers now need to collect is a harder sell than it was two years ago, regardless of how good its API is.
Core banking, ledgers, and card issuing are converging
The category used to split cleanly into core banking systems (the ledger and account infrastructure banks run on), card issuing platforms, and BaaS providers layering a friendlier API on top of both. That's converging: providers that started as card-issuing specialists are adding ledger and account capabilities, and BaaS providers are increasingly expected to offer the full stack — licensing, ledger, and cards — rather than assembling it from multiple vendors.
Subcategories
- Banking-as-a-Service:
- Banking as a Service (BaaS) is the model where a licensed bank provides its regulated infrastructure — accounts, cards, payments, compliance — to third-party companies via APIs, allowing non-bank companies to embed banking products without holding a banking licence themselves.
- Core banking systems:
- Core banking systems are the central platforms that manage a bank's fundamental operations — account management, transaction processing, customer records, product configuration, and regulatory reporting.
- Card issuing platforms:
- Card issuing platforms provide the infrastructure that allows banks, fintechs, and non-bank companies to issue branded debit, credit, and prepaid cards to their customers or employees.
- API infrastructure:
- Financial API infrastructure companies build the connectivity layers that allow different financial systems to exchange data and trigger actions.
How to choose
How to choose
Identify the licence model before comparing features. A directly-licensed provider and a sponsor-bank-model provider can offer near-identical APIs while carrying very different regulatory and operational risk — ask specifically which model you're buying, not just what the product does.
Comparing Banking-as-a-Service providers specifically? See best Banking-as-a-Service providers in Europe — the head-to-head comparison of named providers. Use this page to understand the category; use that one to pick a provider.
Ask for DORA-readiness evidence, not just uptime numbers. Since your business will likely need to report on this provider as a critical ICT third party, ask directly what incident-reporting, resilience testing, and register-of-information documentation they can provide — a provider that hasn't prepared for this conversation will slow down your own compliance work.
Check what happens if the infrastructure provider itself fails. The sponsor-bank model's tri-party structure was exposed by exactly this scenario in 2023-2024 — understand what happens to your customers' funds and your product's continuity if your infrastructure provider runs into financial or regulatory difficulty.
Card issuing and ledger capability aren't always bundled — confirm what's actually included. Some providers are strong on card issuing but require a separate ledger/core-banking partner, and vice versa. Building on two vendors instead of one adds integration and reconciliation work most teams underestimate at the start.