Basis Theory Funding: $50M Raised, Series B (2025)

Basis Theory funding overview

Basis Theory is a Fintech company based in Mill Valley, CA. Basis Theory has raised $50M in total disclosed funding. That places its disclosed total in the $25M–$100M range. Its most recent disclosed round is a Series B announced in October 2025. The round record for Basis Theory runs through 2025; nothing later has been disclosed. Investors on record include Costanoa Ventures, Stage 2 Capital, Moneta VC, Bessemer Venture Partners, Kindred Ventures, Box Group and 1 others. 7 distinct backers are named across the disclosed rounds.

Basis Theory at a glance

Total raised: $50M
Latest round: Series B
Latest round date: October 2025
Industry: Fintech
Headquarters: Mill Valley, CA
Notable investors: Costanoa Ventures, Stage 2 Capital, Moneta VC, Bessemer Venture Partners, Kindred Ventures, Box Group, Offline Ventures

Frequently asked about Basis Theory funding

How much has Basis Theory raised?: Basis Theory has raised $50M in total disclosed funding across the rounds on record.
Who has invested in Basis Theory?: Costanoa Ventures, Stage 2 Capital, Moneta VC, Bessemer Venture Partners, Kindred Ventures, Box Group are named among the investors backing Basis Theory.
What was the latest Basis Theory funding round?: The most recent disclosed round is a Series B, announced in October 2025.
Where is Basis Theory based?: Basis Theory is based in Mill Valley, CA.
What sector does Basis Theory operate in?: Basis Theory is tracked under Fintech from Mill Valley, CA, with $50M in disclosed funding.
When did Basis Theory last raise?: The last disclosed Basis Theory round closed in October 2025 at Series B.

Round data for Basis Theory is compiled from public filings and announcements; blank fields mean nothing has been disclosed rather than nothing exists. Continue with the Fintech companies in Mill Valley and backer lists below.

Basis Theory Funding: $50M Raised, Series B (2025)

Basis Theory funding overview

Basis Theory at a glance

Frequently asked about Basis Theory funding

Basis Theory founders (1)

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