Antigen
YC F25San Francisco, US · Founded 2026 · 5 employees · Hiring · 1 known investors
Antigen provides continuous offensive security testing for enterprise production environments using AI agents nightly and human red teams monthly, with findings integrated into engineering tools.
Also known as Claybird · Zag · zag.dev
AI & Machine LearningCybersecurityDeveloper ToolsEnterprise SoftwareAIUnited States of AmericaAmerica / Canada
Founders & leadership· Y Combinator alumni (F25)
Antigen was founded in 2026 by Saad Jamal and Abdullah Nauman.
SJ
Saad Jamalin𝕏Co-Founder // CEOHe previously worked on machine learning infrastructure at Tesla Autopilot, developed an ML compiler framework at Nuro, and trained reasoning models with Ashish Vaswani. He also clerked at the Supreme Court of Pakistan and attended UChicago Law School.
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Abdullah Naumanin𝕏Co-FounderHe previously worked as a product manager at Google Ads and as an ML engineer at Google Search, where he built large-scale infrastructure for conversion measurement. Earlier in his career, he joined a YC-backed startup as an early employee, scaled a bootstrapped SaaS business, and developed low-level imaging software for semiconductor manufacturing.
Investors · 1
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Frequently asked questions
- What does Antigen do?
- Antigen provides continuous offensive security testing for enterprise production environments using AI agents nightly and human red teams monthly, with findings integrated into engineering tools.
- Who founded Antigen?
- Antigen was founded by Saad Jamal, Abdullah Nauman in 2026.
- Who are Antigen's investors?
- Antigen's investors include Y Combinator.
- Where is Antigen headquartered?
- Antigen is headquartered in San Francisco, US.