Basis Theory, a payments infrastructure startup founded in 2020 by Brian Billingsley, Colin Luce, and Ben Milne, raised $33 million in Series B funding led by Costanoa Ventures, with participation from Stage 2 Capital, Moneta VC, and others. The company builds AI-driven, processor-agnostic payments systems enabling merchants to tokenize, store, and control payment data independently of legacy processors through its PCI Level 1-compliant vault and APIs. The funding will fuel expansion of its agentic commerce infrastructure, where AI agents securely conduct transactions, positioning Basis Theory as a leading player at the intersection of fintech and autonomous AI-powered commerce.
Basis Theory Raises $33M to Build AI-driven Payments for Commerce