Security

Tenable Nessus

Vulnerability scanning for every environment

Visit Tenable Nessus
★4.3ratingPricing · FreemiumStable
The FalcoScan Intel PanelTenable Nessus · Security
Data updated 1 November 2026
Opportunity
Moderate
Band
Saturation
Contested
Band
Wrapper risk
Low
Band
Momentum
Stable
Market trend
Rating
4.3
of 5 · FalcoScan rating

Security AI has a wide moat on average, from the moat scores of its rated products. What protects Security AI tools, and the widest moats

The Brief

What Tenable Nessus does

Industry-standard vulnerability scanner — scans networks, containers, and cloud for 75,000+ known CVEs.

How Tenable Nessus compares with its closest alternatives

2 of the 5 closest alternatives have a free plan, as Tenable Nessus does. 4 of the 5 offer an API, as Tenable Nessus does. Tenable Nessus offers a web app and a desktop app. Of the alternatives, all 5 offer a web app and 1 offers a desktop app. Tenable Nessus was founded in 2002; the alternatives were founded between 2015 and 2020. Tenable Nessus is based in Columbia, United States; 3 of the 4 alternatives with a known headquarters are in the United States too, and the others in France.

Market position · Security

How Tenable Nessus compares in Security

Tenable Nessus has moderate opportunity and sits in the bottom third of 361 live Security tools on FalcoScan. Across Security, the average opportunity score is 70.4 and the average saturation score 33. FalcoScan rates Tenable Nessus's own market position as contested. 121 of the 361 operating Security tools have hot momentum, and FalcoScan has recorded 1 shutdown in the category.

Tenable Nessus compared with its closest alternatives
ProductOpportunitySaturationPricingPricing fromFree planAPIPlatformsMomentum
Tenable NessusFounded 2002 · Columbia, United StatesModerateContestedFreemium—YesYesWeb, DesktopStable
NebuSecHighOpenPaid—NoNoWeb, APIStable
Wiz SecurityFounded 2020 · New York, United StatesModerateOpenPaid—NoYesWebHot
Drata ComplianceFounded 2020 · San Diego, United StatesModerateOpenPaid—NoYesWebStable
GitGuardian SecretsFounded 2017 · Paris, FranceModerateOpenFreemium—YesYesWeb, CLIHot
Snyk CodeFounded 2015 · Boston, United StatesModerateOpenFreemium—YesYesWeb, DesktopRising

Exact opportunity and saturation scores for all 6 of these, and where each ranks in Security.

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What it ships with

Capabilities & who uses it

The capabilities Tenable Nessus exposes to builders and the verticals it currently serves.

AI Capabilities
Automation
Industry Verticals
TechnologyHealthcareGovernment
Tagged

Tenable Nessus shows up when builders search for these

vulnerability-scanningnetworkcve
Similar tools · Security

Alternatives to Tenable Nessus

Products still running that do the same job, from the security market and related ones, closest match first.

See the Security market
Security
NebuSec

AI code security with verified findings and merge-ready fixes

Opportunity High
Paid
Security
Wiz Security

Cloud security posture management leader

★ 4.6Opportunity Moderate
Paid
Security
Drata Compliance

AI-powered security compliance automation

★ 4.5Opportunity Moderate
Paid
Security
GitGuardian Secrets

Secrets detection in your codebase

★ 4.5Opportunity Moderate
Freemium
Security
Snyk Code

Real-time SAST as you type

★ 4.5Opportunity Moderate
Freemium
Security
Vanta Security

Automated security and compliance

★ 4.5Opportunity Moderate
Paid
Featured in
Questions

Tenable Nessus: common questions

Is Tenable Nessus free?

Tenable Nessus has a free tier, with paid plans.

What are the best alternatives to Tenable Nessus?

The closest alternatives to Tenable Nessus that are still running, matched on the AI capabilities, uses and audience they share, are NebuSec, Wiz Security, Drata Compliance, GitGuardian Secrets, and Snyk Code.

Is Tenable Nessus still running?

Yes. As of 1 November 2026, FalcoScan lists Tenable Nessus as operating at tenable.com.

Where is Tenable Nessus based?

Tenable Nessus is headquartered in Columbia, United States.

Does Tenable Nessus have an API?

Yes. Tenable Nessus offers an API.

Who is Tenable Nessus for?

Tenable Nessus is built for security teams, soc, and msps.

How do I sign in to Tenable Nessus?

Sign in on Tenable Nessus's own website, tenable.com. FalcoScan reviews Tenable Nessus but does not run its accounts, so logins, passwords and billing are handled by Tenable Nessus directly.

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