Onyx Security
PrivateLast Round
Series B
Jul 29, 2026
Est. Valuation
$640M
Total Funding Raised
$158M
Momentum
Top 1%
of companies Caplight tracks
Company Overview
Onyx Security is a cybersecurity company that provides a secure AI control plane for enterprises to discover, monitor, and govern autonomous AI agents.
Sector
Cybersecurity
Verticals
Application Security, Data Governance, Compliance & Risk, Vulnerability Management
Business Model
B2B
Customer Profile
Subscription SaaS
AI Layer
Infrastructure
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Onyx Security Comparables
Compare Onyx Security with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Noma Security | 94% | |
| WitnessAI | 84% | |
| Cranium | 82% | |
Onyx Security Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series B | Jul 29, 2026 | ||||
| Series A | Mar 12, 2026 | ||||
| Seed | Jun 27, 2024 |
Key People
Founding team and executive leadership
Onyx Security Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Cyberstarts | Series B, Series A, Seed |
| Vintage Investment Partners | Series B |
| Conviction | Series B, Series A |
| FirstMark Capital | Series B |
| TCV | Series B |
| Bessemer Venture Partners | Series B |
| G Squared | Series B |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jul 29, 2026
$113M round led by Bessemer Venture Partners.
- Jul 20, 2026
Open roles increased to 17, 2.1x the trailing average.
Onyx Security Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about Onyx Security's valuation, stock price, and market status.