Basis Theory
Basis Theory is a cybersecurity company specializing in Fraud & Payment Security, founded in 2020 and headquartered in Mill Valley, United States. It has raised $50M in equity across 3 priced rounds, employs about 63 people, and is privately held.
updated Oct 11, 2026
Basis Theory Momentum score
73/ 100climbing
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Basis Theory products
Basis TheoryPlatform for tokenizing and securely managing sensitive data like payments and PII.
Basis Theory funding
Basis Theory has raised $50M in priced equity. Its most recent round was a Series B in October 2025.
- Equity raised
- $50M3 priced rounds
- Last round
- Series BOct 2025
Basis Theory employees and hiring
Basis Theory has about 63 employees, up 11% over the last 30 days, with 4 open roles.
- Employees
- 63
- 30-day change
- +11%
- Open roles
- 4
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The other 440 data points.
- Funding historyevery round, every investor named
- Headcount growthvelocity, departments, seniority
- Open jobs4 live postings, role mix
- Tech stackframeworks, clouds, security
