Antigen — Startup Profile

Continuous offensive security for the enterprise

HQ: San Francisco, CA | Founded: 2026 | Employees: 5 | Stage: Seed | Website: https://antigen.sh

About

Antigen is an AI adversary for the enterprise. Maps, exploits, and secures attack surfaces through nightly automated offensive testing and monthly human red team assessments. Every finding delivered with traces, reproduction steps, and remediation directly in GitHub, Linear, or the Antigen Platform.

The Take

Antigen offers a robust offensive security solution tailored for enterprises, leveraging high customer lifetime value and strong margins.

Key Metrics

• STAGE: Seed
• EMPLOYEES: 5
• FOUNDED: 2026
• HQ: San Francisco, CA
• VALUATION: Undisclosed
• FUNDING (BACKERS): Y Combinator (F25), Lightspeed, DST Global, Susa Ventures

Funding Rounds

• Round: Undisclosed (2025)

Key People

• Saad Jamal — Co-Founder
• Abdullah Nauman — Co-Founder

Timeline Highlights

• 2023-10-01: Product Launch
• 2023-09-15: Seed Funding Secured

Recent News

• Antigen Launches New Security Suite (2023-10-01)
• Antigen Secures Seed Funding (2023-09-15)

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