RunSybil
RunSybil is an artificial intelligence company in San Francisco, United States, founded in 2023. It has raised $40.0M across 1 round, most recently a $40.0M Seed in March 2026.
Automate hacker intuition. Discover and exploit vulnerabilities at enterprise scale.
- Headquarters
- San Francisco, California
- Employees
- 11–50
- Founded
- 2023
- Business Model
- B2B
- Website
- runsybil.com
- Total Funding
- $40.0M
- Last Round
- $40.0M SeedMar 2026
- Rounds
- 1
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 1 funding round and 6 investors for this company. The full record is or through the API.
About
RunSybil is an AI-native offensive security platform founded in 2023 by Ari Herbert-Voss (OpenAI's first security hire) and Vlad Ionescu (former Meta Red Team X founder). The platform autonomously discovers and exploits real-world vulnerabilities across modern applications, eliminating noise and enabling remediation at enterprise scale. Built by alumni from OpenAI, Meta, Mandiant, NCC Group, and Trail of Bits, RunSybil raised $40M in total funding to automate hacker intuition and replace manual offensive security workflows with AI agents.
Summary
It lists 11–50 employees. It has raised $40.0M in total across 1 round, most recently a $40.0M Seed round in Mar 2026. Investors include Khosla Ventures, S32 and Anthology Fund.
Tech & App Stack
16 technologies & apps tracked
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Funding History
Mar 2026
Investors
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