The round was led by Costanoa, with participation from Stage 2 Capital, Moneta VC, and continued support from Bessemer Venture Partners, Kindred Ventures, Box Group, and Offline Ventures. The funding validates Basis Theory's strong product-market fit and will accelerate its work with agentic commerce while expanding its enterprise-grade payment vault for merchants worldwide.

Basis Theory is the leading independent payment vault, built to help merchants and platforms secure, control, and utilize sensitive payment data across systems and partners. With PCI Level 1 compliance, SOC 2 certification, and a developer-first API, Basis Theory empowers customers to design their payment infrastructure however they choose with zero lock-in.