Knostic vs Onyx Security
Knostic vs Onyx Security, compared side by side on 24 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Knostic is on 53/100 and Onyx Security on 63/100.
Where each one leads
Knostic
- domain rating: 60/100 against 44/100
Onyx Security
- our overall score: 63/100 against 53/100
- agent readiness: 50/100 against 45/100
- headcount: 98 against 38
- headcount growth: +75.5% against +29.9%
- funding raised: $153M against $14.3M
At a glance
| Measure | Knostic | Onyx Security |
|---|---|---|
| What it is | Knostic provides need-to-know access controls for Generative AI to prevent LLM oversharing. | A secure AI control plane platform for discovering, monitoring, and governing enterprise AI agents. |
| Category | Cybersecurity, Enterprise, Generative AI, Large Language Models (LLMs) | AI Governance, AI Observability, Cybersecurity, Agentic AI |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Platform |
| Founded | 2023 | 2024 |
| Headquarters | Not published | Tel Aviv, Israel |
| Status | Active | Active |
Size, funding and growth
| Measure | Knostic | Onyx Security |
|---|---|---|
| Employees | 38 | 98 |
| Headcount growthLast 12 months | +29.9% | +75.5% |
| Open roles | Not published | 11 |
| Total funding | $14.3M | $153M |
| Latest round | Series A | Series B |
| Valuation | Not published | $640M |
| LinkedIn followers | 6,337 | 5,381 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Knostic | Onyx Security |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 53/100 | 63/100 |
| Traction | 52/100 | 60/100 |
| Team | 30/100 | 80/100 |
| Community | Not published | 42/100 |
| Search visibility | 59/100 | 77/100 |
| Quality | 58/100 | 58/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (45/100) | D (50/100) |
| Domain ratingLink authority, 0-100 | 60/100 | 44/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Knostic | Onyx Security |
|---|---|---|
| CDN | Cloudflare | Cloudflare |
| CMS | Not detected | Webflow |
| Frameworks | Bootstrap | Bootstrap |
| Analytics | Google Analytics 4, Google Tag Manager | Google Analytics 4, Google Tag Manager |
| Support stack | HubSpot | HubSpot |
| Open source | Yes | No |
What users say
| Measure | Knostic | Onyx Security |
|---|---|---|
| Community ratingVisitor votes on StartupHub | Not published | 2.1/5 from 7 votes |
| Reddit sentimentThreads we track | 5 positive, 0 negative across 5 threads | 2 positive, 0 negative across 2 threads |
“Crowdsourced AI += Knostic. VirusTotal has integrated Knostic's AgentMesh Agentic Security Supply Chain Reputation Engine to provide specialized, AI-driven analysis for Visual Studio Code extension (.VSIX) files . This new capability offers”r/SecOpsDaily
“Onyx Security raises $113 million for AI agent control plane.”r/RuntimeWire
Knostic vs Onyx Security: common questions
Which is better, Knostic or Onyx Security?
On our 0-100 score Onyx Security rates higher (63/100 against 53/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 24 data points above: read the rows that match what you are buying for.
How do Knostic and Onyx Security compare on the numbers?
Knostic leads on domain rating (60/100 against 44/100). Onyx Security leads on our overall score (63/100 against 53/100), agent readiness (50/100 against 45/100), headcount (98 against 38), headcount growth (+75.5% against +29.9%), funding raised ($153M against $14.3M).
What do real users say about Knostic and Onyx Security?
Knostic: 5 positive and 0 negative mentions across 5 Reddit threads we track, mostly in r/SecOpsDaily. Onyx Security: 2 positive and 0 negative mentions across 2 Reddit threads we track, mostly in r/RuntimeWire.
Read the full Knostic review and pricing or the Onyx Security review and pricing. You can also browse other Knostic alternatives we track.

