YCF25· AI· DevtoolsAntigen
Continuous offensive security for the enterprise.
Founders
- Saad JamalFounder/CTO
- Abdullah NaumanFounder
Same space
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About Antigen
Antigen is an AI adversary for the enterprise. It maps, exploits, and secures your attack surface through nightly automated offensive testing and monthly human red team assessments. Every finding is delivered with traces, reproduction steps, and remediation directly in GitHub, Linear, or the Antigen Platform. We work with companies in financial services, healthcare, retail, and government where security is trust. We're backed by Lightspeed, DST Global, and Susa Ventures.
San Francisco, CA, USA
Antigen: questions
Which YC batch was Antigen in?
Antigen was in Y Combinator's Fall 2025 batch (F25).
Is Antigen still active?
Y Combinator lists Antigen as active.
Who founded Antigen?
Antigen's founders, as listed on its YC page: Saad Jamal (Founder/CTO), Abdullah Nauman (Founder).
Where is Antigen based?
Antigen lists San Francisco, CA, USA as its location on YC's directory.
Not affiliated with Y Combinator. From YC's public directory. Logos via logo.dev; trademarks belong to their owners.