Nium

In their own words

Nium operates infrastructure for global money movement. Through a single integration, businesses can send cross-border payouts to more than 190 countries, hold and convert money in multi-currency accounts, issue physical and virtual cards, connect stablecoin and fiat payout flows, and manage FX across thousands of currency pairs. It serves airlines, banks, fintechs, marketplaces, payroll and travel companies, with regulatory coverage across more than 40 countries.