Starling is a UK digital bank offering personal and business current accounts entirely through a mobile app, with no branches. Founded in January 2014 by Anne Boden, a former Allied Irish Banks COO, it secured a full UK banking licence in 2016 — a distinction that matters more than it sounds. Unlike neobanks that operate on a partner institution's licence, Starling is a bank in its own right, regulated by the FCA and PRA, with deposits FSCS-protected.
It also built its own core banking technology rather than licensing someone else's, and that decision turned out to have a second act. Engine by Starling packages that technology as software-as-a-service and sells it to other banks: Salt Bank in Romania and AMP Bank in Australia were the first clients live on the platform, and Starling is now pushing Engine into North America and the Middle East, targeting what CEO Raman Bhatia has called a £100 billion addressable market. For a bank whose retail footprint stops at the UK border, Engine is the international growth story — and the reason Starling turns up in Banking-as-a-Service conversations as often as digital banking ones.
The core bank remains strong but is no longer on a simple upward curve. Starling reported its fifth consecutive profitable year in 2026, with pre-tax profit of roughly £217 million on £887 million of revenue, serving around 3.5 million personal and business customers, and it has been named Which? Banking Brand of the Year three years running. But that result marked a second straight annual decline, after a 26% profit drop the year before, driven by provisions for pandemic-era Bounce Back Loan issues and a regulatory penalty.
That penalty is the part most profiles leave out. In October 2024 the FCA fined Starling £29 million over anti-money laundering and sanctions screening failures, finding the bank had opened more than 54,000 accounts for high-risk customers in breach of an agreed restriction, and that its screening system had been checking customers against only a fraction of the UK sanctions list since 2017. Starling accepted the findings, apologised, and has invested heavily in remediation — but the episode illustrates the defining challenge of the challenger-bank model: compliance infrastructure that struggles to keep pace with customer growth.
Anne Boden stepped down as CEO in 2023 and left the board in 2024. Raman Bhatia, formerly CEO of OVO and head of HSBC's UK and European digital bank, took over in 2024 and has spent his tenure working through the legacy issues while repositioning the company's growth story around Engine. The bank dropped "Bank" from its name in a September 2025 rebrand.