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Griffin welcomes Uber, Marqeta, Sidekick, Aspora, Access Group and more

Tuesday, December 16, 2025 — 16:53:11 (UTC)

Griffin closes 2025 with 50+ platform customers, welcomes Uber, Marqeta, Sidekick, Aspora, Access Group and many more

London-based API-first bank demonstrates market validation with tier-1 customer integrations and strong revenue growth

LONDON, 16 December 2025 - Griffin, the UK's leading bank for fintechs and platforms, today announced it is closing 2025 with significant growth across all key metrics just over a year after beginning full operations. The bank now serves over 50 platform customers and hundreds of thousands of their end users, reporting a 5x growth in revenue and about £3 billion processed in payments value with a growing customer base that includes names such as Uber, Marqeta, Access Group, Aspora, and Sidekick.

This growth marks a pivotal year for banking infrastructure, with Griffin now powering financial products across wealth, payments, lending, remittance, insurance, proptech and digital banking sectors. Griffin began full operations in March 2024 with a small cohort of five companies in its Foundations program, initially testing its systems before going into full launch in September 2024. In just over a year since full launch, the company has scaled to a customer base of over 50+ companies including Yonder and Prosper, with additional partners such as Uber, Marqeta, Access Group, Aspora and Sidekick having gone live or currently testing their integrations.

"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."

Key Highlights from 2025:

50+ platform customers now fully live on Griffin's banking infrastructure, including Yonder and Prosper.

5x’d revenue in just over a year of full operations

About £3 billion processed in payments value as at December 2025

Tier-1 integrations including Uber, Marqeta, Access Group, Aspora and Sidekick currently live or are testing and integrating.

Strong sales pipeline with many companies in advanced stages

Griffin's API-first approach has enabled some of its customers to launch financial products in weeks rather than months, with full regulatory compliance built into the platform. The company's infrastructure supports savings accounts, current accounts, operational accounts, payments, and compliance products, all accessible through a modern API designed for developer experience.

"Griffin represents the infrastructure layer that will enable the next generation of financial services in any industry" said Matt Ford, Co-founder & CEO at Sidekick Money. They’ve built banking in a way that it can scale for both existing companies, new entrants and new industries. “We went from signing our contract to going live in 8 weeks, which speaks to both the quality of their infrastructure and expertise of the team."

The company's growth comes as embedded finance continues to expand across Europe, with businesses increasingly seeking to offer financial products directly to their customers without building banking infrastructure from scratch. Griffin's regulated status as a UK bank, combined with its modern technology stack, positions it uniquely to serve this market.

Looking ahead to 2026, Griffin plans to scale its payments infrastructure, introduce a card program and launch its stable coins offering.

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About Griffin Griffin puts the bank in Banking as a Service. We combine the secure, regulated infrastructure of a bank with the speed and power of modern software into one powerful full-stack BaaS platform. We aim to empower companies to embed banking into their products quickly and safely. With purpose-built APIs and an all-access developer sandbox, we’re helping our customers build and launch payment platforms, financial wellness apps, client account products, business loans, and more. Griffin is authorised by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and Prudential Regulation Authority. Griffin’s Firm Reference Number (FRN) is 970920.

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Source: Company press release.

Categories: Announcement