Today, the London-based company has expanded into a wider range of business services that are used by some 4 million small and medium businesses in 35 markets, and as it continues to scale out its ambitions, it’s closed in on a major round of funding of €590 million ($624 million). The money will be used for acquisitions, more hiring (it now employs some 3,000 people), and more organic product development, the company said. The investment — led by Bain Capital Tech Opportunities, with participation also from funds managed by BlackRock, btov Partners, Centerbridge, Crestline, Fin Capital, and Sentinel Dome Partners, and others — is coming in the form of 50% equity and 50% debt and values SumUp at €8 billion ($8.5 billion). A decade ago, SumUp was one of the army of fintechs that made names for themselves with dongles that turned basic smartphones into card payment terminals.