Radiant Security vs Onyx Security
Radiant Security vs Onyx Security, compared side by side on 22 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: Radiant Security is on 57/100 and Onyx Security on 63/100.
Where each one leads
Radiant Security
- domain rating: 52/100 against 44/100
Onyx Security
- our overall score: 63/100 against 57/100
- agent readiness: 50/100 against 21/100
- headcount: 98 against 62
- headcount growth: +75.5% against +24.9%
- funding raised: $153M against $15.0M
At a glance
| Measure | Radiant Security | Onyx Security |
|---|---|---|
| What it is | AI-powered SecOps platform to automate SOC workflows and boost analyst productivity. | A secure AI control plane platform for discovering, monitoring, and governing enterprise AI agents. |
| Category | Enterprise, Cybersecurity, Threat Detection, Security Operations | AI Governance, AI Observability, Cybersecurity, Agentic AI |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Platform |
| Founded | 2021 | 2024 |
| Headquarters | San Francisco, United States | Tel Aviv, Israel |
| Status | Active | Active |
Size, funding and growth
| Measure | Radiant Security | Onyx Security |
|---|---|---|
| Employees | 62 | 98 |
| Headcount growthLast 12 months | +24.9% | +75.5% |
| Open roles | Not published | 11 |
| Total funding | $15.0M | $153M |
| Latest round | Series A | Series B |
| Valuation | Not published | $640M |
| LinkedIn followers | 6,108 | 5,381 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Radiant Security | Onyx Security |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 57/100 | 63/100 |
| Traction | 54/100 | 60/100 |
| Team | 60/100 | 80/100 |
| Community | Not published | 42/100 |
| Search visibility | 36/100 | 77/100 |
| Quality | 62/100 | 58/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (21/100) | D (50/100) |
| Domain ratingLink authority, 0-100 | 52/100 | 44/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Radiant Security | Onyx Security |
|---|---|---|
| Hosting | Self Managed | Not detected |
| CDN | Not detected | Cloudflare |
| CMS | WordPress | Webflow |
| Frameworks | Bootstrap | Bootstrap |
| Analytics | Google Analytics 4, Google Tag Manager | Google Analytics 4, Google Tag Manager |
| Support stack | Not detected | HubSpot |
What users say
| Measure | Radiant Security | Onyx Security |
|---|---|---|
| Community ratingVisitor votes on StartupHub | Not published | 2.1/5 from 7 votes |
| Reddit sentimentThreads we track | Not published | 2 positive, 0 negative across 2 threads |
“Onyx Security raises $113 million for AI agent control plane.”r/RuntimeWire
Radiant Security vs Onyx Security: common questions
Which is better, Radiant Security or Onyx Security?
On our 0-100 score Onyx Security rates higher (63/100 against 57/100). 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 22 data points above: read the rows that match what you are buying for.
How do Radiant Security and Onyx Security compare on the numbers?
Radiant Security leads on domain rating (52/100 against 44/100). Onyx Security leads on our overall score (63/100 against 57/100), agent readiness (50/100 against 21/100), headcount (98 against 62), headcount growth (+75.5% against +24.9%), funding raised ($153M against $15.0M).
What do real users say about Radiant Security and Onyx Security?
Onyx Security: 2 positive and 0 negative mentions across 2 Reddit threads we track, mostly in r/RuntimeWire.
Read the full Radiant Security review and pricing or the Onyx Security review and pricing. You can also browse other Radiant Security alternatives we track.