# Nessus Professional vs Nsauditor Network Security Auditor: side-by-side comparison (2026) [Nessus Professional](https://cybersectools.com/tools/nessus-professional) is a commercial [vulnerability assessment](https://cybersectools.com/categories/vulnerability-assessment) solution by [Tenable](https://cybersectools.com/companies/tenable). [Nsauditor Network Security Auditor](https://cybersectools.com/tools/nsauditor-network-security-auditor) is a commercial [vulnerability assessment](https://cybersectools.com/categories/vulnerability-assessment) solution by [Nsasoft US LLC](https://cybersectools.com/companies/nsasoft-us-llc). Features, integrations, deployment and the company behind each one, side by side. ## Side-by-side comparison | | Nessus Professional | Nsauditor Network Security Auditor | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Vulnerability Assessment | Vulnerability Assessment | | Verified | No | No | | Deployment type | On-Premises | On-Premises | | Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | Tenable | Nsasoft US LLC | | Headquarters | – | – | ### Use cases and capabilities | | Nessus Professional | Nsauditor Network Security Auditor | |---|---|---| | Vulnerability | Yes | Yes | | Security Scanning | Yes | – | | CVE | Yes | Yes | | Penetration Testing Framework | Yes | – | | NIST | Yes | – | | PCI DSS | Yes | – | | CIS | Yes | – | | Network Scanning | Yes | Yes | | VAPT | Yes | – | | MITRE ATT&CK | – | Yes | | Security Audit | – | Yes | | Network Monitoring | – | Yes | | Network Discovery | – | Yes | | Inventory | – | Yes | | Password Recovery | – | Yes | | Windows | – | Yes | ### Core features **Nessus Professional** 10 features listed. Sign in on the page to see them. **Nsauditor Network Security Auditor** 10 features listed. Sign in on the page to see them. ### Integrations **Nessus Professional** No integrations listed. **Nsauditor Network Security Auditor** 8 integrations listed. Sign in on the page to see them. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [Nessus Professional](https://cybersectools.com/tools/nessus-professional) fits if you are a startup. ## Nessus Professional vs Nsauditor Network Security Auditor FAQ Common questions when comparing Nessus Professional vs Nsauditor Network Security Auditor for vulnerability assessment. ### What is the difference between Nessus Professional and Nsauditor Network Security Auditor? **Nessus Professional**: Vulnerability scanner for assessing networks, systems, and apps for security flaws, built by Tenable. **Nsauditor Network Security Auditor**: Windows suite for network security auditing, vuln scanning, and IT mgmt, built by Nsasoft US LLC. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Nessus Professional and Nsauditor Network Security Auditor? **Nessus Professional** is made by Tenable. **Nsauditor Network Security Auditor** is made by Nsasoft US LLC. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Nessus Professional a good alternative to Nsauditor Network Security Auditor? Often, yes. Nessus Professional and Nsauditor Network Security Auditor are both Vulnerability Assessment products, and both cover Network Scanning, Vulnerability, CVE. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Nessus Professional vs Webray RayScan](https://cybersectools.com/compare/nessus-professional-vs-webray-rayscan) - [Nessus Professional vs Tripwire IP360](https://cybersectools.com/compare/nessus-professional-vs-tripwire-ip360) - [Nessus Professional vs Deepwatch Vulnerability Management](https://cybersectools.com/compare/deepwatch-vulnerability-management-vs-nessus-professional) - [Nsauditor Network Security Auditor vs Webray RayScan](https://cybersectools.com/compare/nsauditor-network-security-auditor-vs-webray-rayscan) - [Nsauditor Network Security Auditor vs Tripwire IP360](https://cybersectools.com/compare/nsauditor-network-security-auditor-vs-tripwire-ip360) - [Nsauditor Network Security Auditor vs Deepwatch Vulnerability Management](https://cybersectools.com/compare/deepwatch-vulnerability-management-vs-nsauditor-network-security-auditor) ## Alternatives to each - [See all Nessus Professional alternatives](https://cybersectools.com/alternatives/nessus-professional) - [See all Nsauditor Network Security Auditor alternatives](https://cybersectools.com/alternatives/nsauditor-network-security-auditor) --- Source: https://cybersectools.com/compare/nessus-professional-vs-nsauditor-network-security-auditor For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/nessus-professional.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Nessus Professional and Nsauditor Network Security Auditor: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md