Basis Theory Raises $33M Series B Led by Costanoa

Basis Theory Raises $33M Series B Led by Costanoa

Oct 14, 2025

Deal Summary

Basis Theory, a San Francisco-based payments infrastructure company, raised $33M in a Series B round led by Costanoa with participation from Stage 2 Capital, Moneta VC and existing backers including Bessemer Venture Partners, Kindred Ventures, Box Group and Offline Ventures. The company will use the funds to validate its product-market fit.

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