"This is a great vote of confidence in our growth prospects and plans for the future."
They have secured further capital from current investors including BBVA, Woodford Investment Management, Toscafund Asset Management.
After securing its banking license in June 2015, Atom Bank launched operations in April 2016, offering two fixed saver accounts and secured business lending for SMEs.
Atom Bank recently launched its first mobile mortgage product, allowing borrowers to manage everything via an App. Atom plans to launch further products and enhancements to the App throughout 2017.
Atom Bank’s Founder and Chairman, Anthony Thomson said: “We are very pleased with the response we have had from investors. Our customers benefit from the backing of highly reputable investors who are supportive of what we are doing. This is a great vote of confidence in our growth prospects and plans for the future.
"With the work we have done so far we are just beginning to see how transformational our new approach to banking can be. There is so much more to come from Atom in the coming months and years.”