A more secure tomorrow starts with people.
Circle is building the human identity layer for the AI era, ensuring the real, authorized human is present and approving every action.
Our mission
Verify the human. Build a safer, more open world.
We don't manage passwords. We eliminate them. That puts people back in control without asking them to be perfect, because a click on the wrong link has nothing to give away.
Human at the center
We verify the real, authorized person behind every action.
A counterbalance to AI
Human authorization where it matters most.
Ready for the quantum era
Security built to hold up as computing gets more powerful.
The people behind Circle.
Deep experience in cybersecurity, identity, and go-to-market, united by one belief: people should stay in control.
Sara Duryea
Founder & CEO
Sara founded Circle to solve one of the defining challenges of the AI era: proving the human. She leads the company's vision, strategy, and growth.
Gene Allen
Chief Technology Officer
Gene brings deep technical expertise in identity, authentication, and secure engineering. He leads product development and innovation across Circle's human identity solutions.
Jason Lundy
Senior Revenue Officer
Jason leads Circle's go-to-market strategy, channel partnerships, and enterprise sales. He brings extensive experience in cybersecurity and identity to every customer relationship.
Circle Security isn't just solving the credential problem; they're architecting past it entirely. This is the direction authentication must go.
Bruce Schneier
Internationally renowned security technologist, cryptographer, and bestselling author of 14 books.
Let's build a safer, more human future.
See how Circle puts a verified human behind every critical action.