Payhawk, the payments and expense solution with offices in London, Sofia, Berlin and Barcelona, has raised $112 million just three years after its inception, valuing the company at $570m. The Series B round is led by the San Francisco-based investor Greenoaks, who has a strong track record of investing in high-growth technology companies such as Gorillas, Robinhood, Stripe and Brex. All existing investors, including QED Investors, Earlybird Digital East and Eleven Ventures are participating in the round.