Revolut Ltd holds an e-money license in Great Britain and is regulated by the competent authorities there. Revolut Payments UAB, which stores your money in the form of e-money and executes your transactions, is an e-money institution authorized and regulated by the Bank of Lithuania. In addition, Revolut Payments UAB is subject to European law and has an authorization as bank in Germany.
This means that your money is secured up to a sum of at least €100,000 like with conventional banks.