Tandem is a digital bank that provides banking and financial services to customers in the UK. The company was founded in 2014 and is headquartered in London. Tandem's platform allows customers to manage their finances through a mobile app, and offers a range of products including savings accounts, credit cards, and loans. The company has raised over £60 million in funding and has over 500,000 customers. Tandem's mission is to help customers make better financial decisions by providing a more transparent and personalized banking experience.