RunSybil
RunSybil is a cybersecurity company specializing in Attack Surface, founded in 2023 and headquartered in San Francisco, United States. It has raised $40M in equity across 1 priced round, employs about 20 people, and is privately held.
updated Sep 12, 2026
Latest RunSybil news and company activity
What RunSybil did, dated — selected moves from the record, one per kind, newest first.
- Apr 2026Customer winNotion and Thinking Machines added to RunSybil customer logo wall
- Mar 2026Funding roundExclusive: AI cybersecurity startup RunSybil, founded by OpenAI's first security hire, raises $40 million led by Khosla Ventures
5 events tracked since Jan 2026 · selected events shownUnlock the complete RunSybil timeline
RunSybil Momentum score
58/ 100
Mandos Momentum blends hiring, funding, traffic and sentiment into one score out of 100. The score is free; the pillars behind it unlock in the platform.
RunSybil funding
RunSybil has raised $40M in priced equity. Its most recent round was a Seed in March 2026.
- Equity raised
- $40M1 priced round
- Last round
- SeedMar 2026
RunSybil employees and hiring
RunSybil has about 20 employees, up 17% over the last 30 days.
- Employees
- 20
- 30-day change
- +17%
- Open roles
- 0
RunSybil competitors
Security professionals most often compare RunSybil against SafeHill on cybersectools.com. The full competitive set, with overlap scoring, is in the platform.
by search demand for comparison pages on cybersectools.com, 90 days
The other 440 data points.
- Funding historyevery round, every investor named
- Headcount growthvelocity, departments, seniority
- Open jobslive postings, hiring pace, role mix
- Tech stackframeworks, clouds, security
