Tandem

Tandem sets itself apart from other digital banks, such as Monzo and Starling, not only by being the UK's green digital bank but also by continually launching a wide range of products outside the current account. For example, it offers a leading savings account, with higher interest than many incumbents, and a new interest rate top-up feature for its instant access savings accounts.

The company's partnerships with companies like Oplo and Allium, have helped advance its green efforts, issuing over £230 million of green lending. It may have had a slower start than Monzo and Starling, but has since built momentum, serving millions of users. Since further transitioning into a greener digital bank, the company has seen significant (and sustainable) growth.