Nucleus Security vs Tenzai
Nucleus Security vs Tenzai, 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: Nucleus Security is on 56/100 and Tenzai on 57/100.
Where each one leads
Nucleus Security
- agent readiness: 64/100 against 50/100
- domain rating: 60/100 against 38/100
- headcount: 123 against 60
- LinkedIn following: 17,516 against 6,051
Tenzai
- funding raised: $115M against $20.0M
At a glance
| Measure | Nucleus Security | Tenzai |
|---|---|---|
| What it is | Enterprise exposure management platform that centralizes and normalizes vulnerability, asset, and risk data. | Tenzai builds AI hackers that autonomously identify, exploit, and remediate vulnerabilities across enterprise software, scaling advanced penetration testing capabilities. |
| Category | Cybersecurity, Vulnerability Management, Exposure Management, IT Management | Cybersecurity, Agentic AI, AI Hacker, Penetration Testing |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Software |
| Founded | 2018 | 2025 |
| Headquarters | Columbia, United States | Tel Aviv, Israel |
| Status | Active | Inactive |
Size, funding and growth
| Measure | Nucleus Security | Tenzai |
|---|---|---|
| Employees | 123 | 60 |
| Total funding | $20.0M | $115M |
| Latest round | Series C | Not published |
| LinkedIn followers | 17,516 | 6,051 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Nucleus Security | Tenzai |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 56/100 | 57/100 |
| Traction | 57/100 | 58/100 |
| Team | 60/100 | 70/100 |
| Community | 15/100 | 8/100 |
| Search visibility | 30/100 | 46/100 |
| Quality | 58/100 | 55/100 |
| Agent readinessHow well an AI agent can read and act on the site | C (64/100) | D (50/100) |
| Domain ratingLink authority, 0-100 | 60/100 | 38/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Nucleus Security | Tenzai |
|---|---|---|
| CDN | Cloudflare | Cloudflare |
| CMS | WordPress | Webflow |
| Frameworks | Jquery | Bootstrap |
| Analytics | Google Tag Manager | Google Analytics 4, Google Tag Manager |
| Support stack | Not detected | HubSpot |
Product and pricing
| Measure | Nucleus Security | Tenzai |
|---|---|---|
| Key features | Not published | AI Hackers, Agentic Penetration Testing Platform, Autonomous & Continuous Security |
What users say
| Measure | Nucleus Security | Tenzai |
|---|---|---|
| Reddit sentimentThreads we track | Not published | 1 positive, 1 negative across 2 threads |
“AI Startup Tenzai Raises $75 Million in Seed Round. Tenzai, an AI hacking agent startup, has raised $75 million in its seed round. The company was founded less than six months ago and has already gained significant investor interest.”r/scaletogether
Nucleus Security vs Tenzai: common questions
Which is better, Nucleus Security or Tenzai?
On our 0-100 score Tenzai rates higher (57/100 against 56/100). 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 Nucleus Security and Tenzai compare on the numbers?
Nucleus Security leads on agent readiness (64/100 against 50/100), domain rating (60/100 against 38/100), headcount (123 against 60), LinkedIn following (17,516 against 6,051). Tenzai leads on funding raised ($115M against $20.0M).
What do real users say about Nucleus Security and Tenzai?
Tenzai: 1 positive and 1 negative mentions across 2 Reddit threads we track, mostly in r/scaletogether.
Read the full Nucleus Security review and pricing or the Tenzai review and pricing. You can also browse other Nucleus Security alternatives we track.