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Based in : UK Company : Revolut Market cap : US $ 33bn

Based in : US Company : Block Market cap : US $ 48.1bn

Revolut ’ s Russian-born CEO co-founded the business in 2015 . As the name suggests , Revolut was designed to revolutionise financial services and has become synonymous with super-app functionality , with features including payments , currency exchange , stocks and shares , and more recently pet insurance . In just seven years , Storonsky has made Revolut one of the most formidable fintechs , raising US $ 1.7bn in funding and securing a valuation of US $ 33bn . He is a keen kite surfer , and was a championship swimmer in his youth .

The co-founder of Twitter launched Square alongside Jim McKelvey in 2009 , aiming to make it easier for merchants to accept card payments . It originally worked by turning a mobile phone into a card reader , but today it offers both hardware and software solutions for merchants in five major countries . Last year , it changed the name of the holding company , which includes Square and Cash App , to Block . Block has a market cap of US $ 48bn , although some of that is derived from nonfintech ventures . fintechmagazine . com 145