Ramp, the corporate payments start-up backed by Peter Thiel and Thrive Capital, has almost doubled its valuation to $13bn, as financial technology companies rebound from a painful period of lower spending and economic uncertainty.

Ramp, a fintech startup that offers corporate cards and software for managing employee expenses, was valued at $13 billion in a tender offer round that lets some employees and investors cash out, signaling renewed investor appetite in high-growth startups.