Stone cut his teeth in fintech with Pretoria-based loan management vendor Payment Solutions International. He went on to become Country Manager for Kenya before consulting for multiple banks like Stanbic Bank, Barclays Bank and Standard Chartered Bank in Kenya and Uganda on using technology to improve loan collections.

He then co-founded Yetu Credit Finance, a USSD-based micro-lender for government employees in Uganda. He co-founded useremit.com, a remittance company delivering to mobile money in Uganda, Kenya, and Rwanda. He is a laureate of the Paris-based think tank, Institut Choiseul as one of the young African leaders of 40 years old and under, who have a major impact on the continent’s economic development.

In 2017, he was selected by the government of France as an exceptionally talented entrepreneur and moved to Paris to found Eversend, Africa’s first neobank.