Circle Security
Track on RadarCredential-free authentication platform eliminating credential storage via QR-based login.
- Total raised
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- Employees
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- Founded
- 2021
- Momentum
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Data updated August 2026
About
About Circle Security
At a glance
Circle Security is a cybersecurity company specializing in IAM, founded in 2021 and headquartered in Oakland, United States. It is privately held.
Circle Security is a cybersecurity company that develops Circle Access, a credential-free authentication platform. The core premise of the product is the complete elimination of credential storage at the protocol level, distinguishing it from conventional passwordless solutions that still retain biometric templates or device keys. Circle Access authenticates users via a QR code scan, with a stated authentication time of approximately two seconds. Because no credentials are stored, the company asserts that credential-based breaches are structurally prevented, and password reset workflows are eliminated entirely. The platform is designed around several compliance and regulatory frameworks: - Executive Order 14028 (EO 14028) - Cybersecurity Maturity Model Certification 2.0 (CMMC 2.0) - NIST 800-207 (Zero Trust Architecture) Circle Security targets three primary market segments: 1. Enterprise - focused on reducing IT operational costs and eliminating credential-based breach vectors. 2. Government - aligned with CAC/PIV credential standards and federal Zero Trust mandates. 3. Developers - offering integration-ready protocols with full API access for embedding the authentication capability into third-party applications. The product is positioned as transparent to end users, requiring no passwords, biometric prompts, or additional user-facing security steps beyond the QR scan. The underlying architecture is described as decentralized, meaning credential data is not held in a central repository that could be compromised.
Momentum
How Circle Security is trending
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Valuation
What Circle Security is worth
Estimated valuation
Products
Circle Security's products
Funding
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Public markets
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Privately held
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Headcount
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Tech stack
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Full profile
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FAQ
Frequently asked questions about Circle Security
When was Circle Security founded?▾
Circle Security was founded in 2021.
Where is Circle Security headquartered?▾
Circle Security is headquartered in Oakland, United States.
Is Circle Security public or private?▾
Circle Security is a privately-held company.
What does Circle Security do?▾
Circle Security is a cybersecurity company that develops Circle Access, a credential-free authentication platform. The core premise of the product is the complete elimination of credential storage at the protocol level, distinguishing it from conventional passwordless solutions that still retain bio…
What category does Circle Security operate in?▾
Circle Security operates in the IAM category of the cybersecurity market.