They range from mobile payment systems to cross-border currency transfer services, peer-to-peer lending, data analytics, comparison apps, robo advisers and algorithmic trading programmes.

Alongside the investment platform business, it has a range of multi-manager investment funds, a foreign currency transfer service and a corporate division, which administers company pensions and invests charity assets.

High-street banks handle 80% of all currency transfers, but the fees they charge can make them an expensive option.

Restrictions on bank withdrawals, currency transfers and overseas investments are for the financial backwaters of the developing world.

Purchases on the website are made using bitcoins, a digital currency transferred between bitcoin owners without the need for banks, making these transactions hard to track.