Castle vs NOV
Castle vs NOV, compared side by side on 16 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: Castle is on 60/100 and NOV on 37/100.
Where each one leads
Castle
- our overall score: 60/100 against 37/100
- agent readiness: 49/100 against 42/100
NOV
- LinkedIn following: 986,753 against 18,824
At a glance
| Measure | Castle | NOV |
|---|---|---|
| What it is | Developer-grade infrastructure to stop bots, abuse, and fraud by transforming user behavior into real-time signals. | Securing enterprise identity by addressing the blind spot after MFA. |
| Category | Cybersecurity, Threat Detection, Authentication, API Platform | Cybersecurity, Identity and Access Management (IAM), Identity & Access Management, Threat Detection |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Software |
| Founded | 2015 | 2022 |
| Headquarters | San Francisco, United States | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Castle | NOV |
|---|---|---|
| Employees | 52 | Not published |
| Headcount growthLast 12 months | +24.2% | Not published |
| Total funding | $9.2M | Not published |
| Latest round | Series A | Not published |
| LinkedIn followers | 18,824 | 986,753 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Castle | NOV |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 60/100 | 37/100 |
| Traction | 52/100 | Not published |
| Team | 60/100 | Not published |
| Community | 15/100 | Not published |
| Search visibility | 36/100 | 22/100 |
| Quality | 68/100 | 58/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (49/100) | D (42/100) |
| Domain ratingLink authority, 0-100 | 66/100 | 73/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Castle | NOV |
|---|---|---|
| Hosting | Netlify | Vercel |
| CDN | Netlify | Cloudflare |
| CMS | Lovable | Not detected |
| Frameworks | Astro, Tailwind CSS | Next.js, Tailwind CSS |
| Analytics | Google Analytics 4, Google Tag Manager, PostHog | Not detected |
Castle vs NOV: common questions
Which is better, Castle or NOV?
On our 0-100 score Castle rates higher (60/100 against 37/100). 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 16 data points above: read the rows that match what you are buying for.
How do Castle and NOV compare on the numbers?
Castle leads on our overall score (60/100 against 37/100), agent readiness (49/100 against 42/100). NOV leads on LinkedIn following (986,753 against 18,824).
Read the full Castle review and pricing or the NOV review and pricing. You can also browse other Castle alternatives we track.