Nanitor
Nanitor is the leading true Continuous Threat Exposure Management CTEM solution in the market today.
19 employees · est. 2014 · Iceland
Tenable
Welcome to Tenable. Your exposure ends here. Cloud Exposure | Vulnerability Exposure | OT Exposure | Identity Exposure
2337 employees · est. 2002 · Columbia, United States
Tenable is the older company (2014 vs 2002); Tenable is the larger of the two.
2 signals in the last 90 days
Side-by-Side Comparison
| Metric | Nanitor | Tenable |
|---|---|---|
| Founded | ||
| Founded | 2014 | 2002 older |
| Headquarters | ||
| Headquarters | Iceland | Columbia, United States |
| Employees | ||
| Employees | 19 | 2337 larger |
| Industry | ||
| Industry | Analytics, Cyber Security, SaaS | Cyber Security, Privacy and Security |
| Funding Stage | ||
| Funding Stage | Seed | Post Ipo Equity |
| Total Funding | ||
| Total Funding | $2.53M | $565.44M |
| Funding Rounds | ||
| Funding Rounds | 2 | 5 |
| Services | ||
| Services | Threat Exposure Management, Vulnerability Assessment, Patch Intelligence, Asset Visibility and Control, Security Compliance Solutions, Risk Prioritization and Reporting, Real-Time IT Asset Discovery | Exposure Management Platform, Vulnerability Scanning, Cloud Security Posture Management, Identity and Access Management, OT/IT Converged Security |
| Target Customers | ||
| Target Customers | Enterprise Security Teams, Managed Security Service Providers (MSSPs), Cybersecurity Consulting Firms, IT and IS Directors, Chief Information Security Officers (CISOs), Organizations with global IT infrastructures | Automotive Manufacturing, Energy Sector, Finance Industry, Healthcare Organizations, Oil & Gas Companies |
| Taxonomy | ||
| Taxonomy | Continuous Threat Exposure Management, Cybersecurity Posture, Vulnerability Management, Cyber Resilience, Security Configuration Analysis, Cloud Security, Network Protection, Server Protection, Database Security, Real-Time Monitoring, Security Patch Management, Infrastructure Vulnerability Detection, Cybersecurity Compliance, Exposure Management, Security Health Scoring | Exposure Management, Vulnerability Management, Cloud Security, Operational Technology, Identity Exposure, AI-Powered Security, IT Infrastructure Protection, Cloud Environment Protection, Application Security, Kubernetes Security, Web Application Scanning, Generative AI In Security, Container Security, Cloud Security Posture Management |
| Website | ||
| Website | nanitor.com | tenable.com |
About Nanitor
Nanitor, founded in 2014 and headquartered in Iceland, is carving a niche within the Analytics, Cyber Security, and SaaS sectors. Promoted as "the leading true Continuous Threat Exposure Management CTEM solution in the market today," Nanitor's core offering is its innovative CTEM system. This out-...
About Tenable
Tenable, founded in 2002, stands as a leading entity in the Cyber Security and Privacy and Security sectors. Headquartered in the United States, Tenable positions itself with the powerful slogan: "Welcome to Tenable. Your exposure ends here." As an exposure management company, Tenable is dedicated...
We will tell you when either one moves
BounceWatch watches Nanitor and Tenable for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at Nanitor and Tenable — by email.
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Compiled from the BounceWatch company index. We last looked at Nanitor on 12 Mar 2026, and Tenable on 5 Aug 2025. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.