The fintech world’s been chasing speed, scale, and security like it’s a three-way race nobody wins. Then Basis Theory shows up, plugs into the chaos, and calmly builds the rails everyone else forgot to design. On Oct 14, 2025, the company announced a 33M Series B led by Costanoa Ventures, joined by Stage 2 Capital, Moneta VC, and returning backers Bessemer Venture Partners, Kindred Ventures, Box Group, and Offline Ventures. That pushes total funding to 50M and keeps Basis Theory running an independent payments playbook that’s got merchants and developers leaning in.
Colin Luce, CEO, Brian Billingsley, CTO, and Ben Milne, Head of Strategy, didn’t just build another vault, they built independence into the infrastructure. Their platform tokenizes and secures payment data through a cloud-native vault that doesn’t care which processor you use. Stripe, Adyen, Braintree, they all connect, but none of them own your data. That’s the point. Merchants finally get portability without begging for permission. In a world of lock-in contracts and compliance nightmares, that’s not innovation, it’s liberation wrapped in encryption.
The team’s no stranger to the grind. Between Dwolla, Klarna, and Yodlee, they’ve lived the pain points they’re solving. Now, from their Mill Valley HQ and a distributed crew across the U.S. & Europe, they’re scaling an operation that’s already PCI DSS Level 1 and SOC Type II certified. Enterprise clients like Pinterest, Melio, MoneyGram, Engine, and Orum have already bought in, because when you process payments across continents, “good enough” security just isn’t good enough.
Costanoa’s Amy Cheetham called this round a bet on agentic commerce, the next evolution where AI doesn’t just recommend purchases, it transacts autonomously. Basis Theory’s vault is the trust layer that makes that future even possible. Series B capital will fund that push: expanding enterprise-grade vault capabilities, hiring 30+ engineers & product minds, and launching an AI-driven orchestration engine that’ll give mid-market and enterprise merchants an entirely new kind of control.
Here’s the quiet truth that loud industries miss: control is the new currency. Basis Theory isn’t chasing buzzwords; they’re building infrastructure that lets everyone else chase growth without giving up their keys. Payment data used to be a liability, now, thanks to Luce, Billingsley, and Milne, it’s becoming an asset class. The game just shifted, and it’s still early.
