Antigen

ActiveAI-native

Continuous offensive security for the enterprise.

What it does

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.

Its site says now · captured 2026-08-23

Antigen — AI-powered continuous pentesting

Antigen continuously maps and exploits your attack surface, fixes confirmed vulnerabilities, and verifies every remediation with AI-powered pentesting.

Next to it in Security and compliance · AI-powered offensive security testing

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