Griffin scales API banking as embedded finance demand grows

By Vriti Gothi

UK-based API-first bank Griffin ended 2025 with more than 50 platform customers live on its infrastructure, as demand for regulated banking services among FinTechs and technology platforms continued to expand. The company said it processed approximately £3 billion in payment value during the year and recorded a fivefold increase in revenue since beginning full operations.

Griffin, which launched fully in September 2024 after an initial pilot phase, provides regulated banking infrastructure to platforms offering financial products across areas such as payments, lending, wealth management and digital banking. Its customer base includes companies such as Uber, Marqeta, Access Group, Aspora and Sidekick, alongside earlier clients including Yonder and Prosper. Several of these partners are live, while others are in the process of testing and integrating.

The update comes amid sustained growth in embedded finance across Europe, where non-bank companies are increasingly offering financial products directly to end users. For many platforms, access to a licensed banking partner has become a prerequisite for launching regulated services without building in-house infrastructure.

Griffin began operations in March 2024 with five companies in its Foundations programme, designed to test its systems ahead of a broader launch. Since then, it has expanded to serve more than 50 platform customers, collectively reaching hundreds of thousands of end users through partner applications.

The bank’s platform supports current and savings accounts, operational accounts, payments and compliance tooling, delivered through an API-based model aimed at integration into third-party products. Customers typically use the infrastructure to embed financial functionality into existing services rather than launch standalone banking propositions.

Looking ahead, Griffin said it plans to expand its payments capabilities in 2026, alongside the introduction of a card programme and a stablecoin-related offering, subject to regulatory requirements.

“2025 was the year we became the partner bank of choice for fast-moving technology companies in the UK,” said David Jarvis, CEO and co-founder of Griffin. “We’ve proven you can build a bank that moves as fast as the FinTechs it serves without compromising on compliance or resilience. The companies integrating with us aren’t just taking a bet on the future—they’re building on proven infrastructure that scales.”