Challenger bank

Challenger banks are small, recently created retail banks that compete directly with the longer-established banks in the UK, sometimes by specialising in areas underserved by the "big four" banks (Barclays, HSBC, Lloyds Banking Group, and NatWest Group). As well as new entrants to the market, some challenger banks were created following divestment from larger banking groups (TSB Bank from Lloyds Banking Group) or wind-down of a failed large bank (Virgin Money from Northern Rock).

The banks distinguish themselves from the historic banks by modern financial technology practices, such as online-only operations, that avoid the costs and complexities of traditional banking.