Horizon3
Runs autonomous AI-driven penetration testing to secure enterprise networks
$250MSeries E
Role not disclosedS
SignalFire
Activity from announced rounds
Activity in this selectionOct 11, 2026 · Cybersecurity · Jul 14, 2026
SignalFire is a venture firm using in-house AI and data tools to support companies in enterprise AI, developer tools, cybersecurity, fintech, healthcare and consumer technology.
Beacon AI, its proprietary platform, combines talent search, competitive intelligence and sales lead data. Portfolio companies use those tools for specific tasks such as identifying candidates, mapping a market and finding potential customers.
Its operating programmes cover recruiting, go-to-market, leadership development, data science, public relations and fundraising. The support model includes engineers, data scientists and growth professionals working alongside sector investors.
Sources
- Rounds participated in
- 1
- Confirmed lead rounds
- — 1 roles undisclosed
- New companies
- 1 First participation on record · 0 follow-on
- Funding in participating rounds
- $250M 1 disclosed · full round size, not this investor’s share