TL;DR: Sacra estimates that Ramp has overtaken Brex in total payments volume (TPV), hitting $30B annualized at the end of 2023 off the growth of Ramp's second product, Bill Pay. Now, the battleground has shifted away from card volume towards B2B subscription SaaS. For more, check out our dataset on the corporate card "flippening" and read our reports on Ramp (dataset) and Brex (dataset)...