RunSybil

RunSybilRunSybil
RunSybil

RunSybil

RunSybil offers an AI-driven pentester that automates hacker intuition to find vulnerabilities, aiming to drive down the speed and cost of vulnerability discovery to zero.

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About

RunSybil is an innovative cybersecurity company specializing in AI-driven penetration testing. Their core mission is to automate hacker intuition, enabling organizations to proactively discover vulnerabilities before they can be exploited. By leveraging state-of-the-art AI and exploitation techniques, RunSybil aims to significantly reduce the time and cost associated with traditional vulnerability discovery. The company provides active defense capabilities, allowing clients to identify security weaknesses rapidly and re-test fixes in hours. Founded in 2023 by alumni from leading tech and security firms like OpenAI, Meta, and Mandiant, RunSybil is building a fully autonomous pentesting service powered by Large Language Models (LLMs).
Frequently asked

What does RunSybil do?

RunSybil is an innovative cybersecurity company specializing in AI-driven penetration testing. Their core mission is to automate hacker intuition, enabling organizations to proactively discover vulnerabilities before they can be exploited. By leveraging state-of-the-art AI and exploitation techniques, RunSybil aims to significantly reduce the time and cost associated with traditional vulnerability discovery. The company provides active defense capabilities, allowing clients to identify security…

What is RunSybil's revenue?

StartupHub estimates RunSybil's annual revenue at $7.4M (range $4.0M to $18.3M, 66% confidence), based on comparable companies in the sector.

What is RunSybil's valuation?

StartupHub estimates RunSybil's effective valuation at $164.0M (range $100.0M to $240.0M, 23% confidence), based on comparable companies in the sector.

How much funding has RunSybil raised?

RunSybil has raised a total of $40M in funding. The most recent round on record is Unknown.

When was RunSybil founded?

RunSybil was founded in 2023.

What industry does RunSybil operate in?

RunSybil operates in Cybersecurity, Threat Detection, Penetration Testing, AI-driven Security, Vulnerability Management, Enterprise Software.

How many employees does RunSybil have?

RunSybil has approximately 28 people on record.

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DOMAIN RATING
32
Comments
(3)
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Reddit
r/redditu/run-sybilApr 4, 2026Positive💎

RunSybil. discussion of the automated offensive security testing platform RunSybil (www.runsybil.com)

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Reddit
r/pwnhubu/_cybersecurity_Mar 29, 2026Positive

OpenAI's first security hire raised $40M to automate pentesting with AI agents. RunSybil closed a $40M round led by Khosla Ventures , covered exclusively by Fortune this week.

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Reddit
r/pwnhubu/_cybersecurity_Mar 29, 2026Positive

With both RunSybil and Xbow raising the same week, it looks like autonomous offensive security is becoming a real category.

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Some comments are pulled from public discussions around the web (look for the source icon). Quotes are excerpts; click through to read the full thread.