- Raised $35M Series A led by Conviction, Mar 2026
- Raised $5M Seed round led by Cyberstarts, 2024
About
Onyx Security is an Israeli cybersecurity startup that has developed a platform to secure and manage AI systems, specifically focusing on autonomous AI agents in enterprises. The company's platform provides a secure AI control plane that continuously discovers AI agents, monitors their reasoning, and approves or corrects their actions to enforce security and governance policies. It aims to address the new operational and security risks introduced by the unpredictable nature of AI agents, such as reasoning errors, hallucinations, and manipulation through malicious prompts. Onyx Security's solution, the Onyx Guardian Agent, uses supervisory AI and proprietary AI models to understand AI reasoning and intervene in real-time, offering visibility, control, optimization, and ROI measurement for AI agent adoption.
Funding history · 2 rounds · $40.0M total
Q&A
- What is Onyx Security's primary focus?
- Onyx Security provides an AI agent security platform designed for enterprise security teams to discover, govern, and protect all enterprise AI agents.
- When was Onyx Security founded?
- Onyx Security was founded in June 2024.
- How much funding has Onyx Security raised to date?
- Onyx Security has raised a total of $40,000,000 USD.
- Which investors participated in Onyx Security's Series A round in March 2026?
- The Series A round in March 2026 was led by Conviction Ventures and joined by.
- Who are the co-founders of Onyx Security?
- The co-founders of Onyx Security are Maxim Kogan (Co-founder & CEO), Gil Elbaz (Co-founder), and Shachak Zicher (Co-founder & CTO).
- What is Onyx Security's current employee count?
- Onyx Security has 51-200 employees.
- Where is Onyx Security headquartered?
- Onyx Security is headquartered in Tel Aviv, Israel.
- What was Onyx Security's first funding round?
- Onyx Security's first funding round was in August 2024, with CyberStarts as the lead investor.
Team · 3
Sectors & technology
Tags
Full data — links, identifiers, deals & radar signals (jobs, patents, research, more)
External links
| Website | onyx.security |
|---|---|
| linkedin.com/company/onyx-security |
Identifiers & details
| Legal name | ONYX SECURITY LTD |
|---|---|
| Founded | 2024-6 |
| Employees (exact) | 70 |
Radar intelligence
Open jobs — ashby
| Total open | 4 |
|---|---|
| Remote | 0 |
| Title | Location | Department |
|---|---|---|
| Technical Lead, Frontend | ||
| Founding Account Executive | ||
| Fullstack Engineer | ||
| Machine Learning Engineer |
Patents
| EPO | 1 |
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GitHub
| Top repos | gitleaks, ent, pywebagent, sentient-onyx |
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Web history (Wayback)
| Domain | onyx.security |
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Certificate / subdomain footprint
| Subdomains | 149 |
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