# COMGUARD Vulnerability Scans & Load Testing vs Nessus Professional: side-by-side comparison (2026) [COMGUARD Vulnerability Scans & Load Testing](https://cybersectools.com/tools/comguard-vulnerability-scans-and-load-testing) is a commercial [vulnerability assessment](https://cybersectools.com/categories/vulnerability-assessment) solution by [COMGUARD a.s](https://cybersectools.com/companies/comguard-as). [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). Features, integrations, deployment and the company behind each one, side by side. ## Side-by-side comparison | | COMGUARD Vulnerability Scans & Load Testing | Nessus Professional | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Vulnerability Assessment | Vulnerability Assessment | | Verified | No | No | | Deployment type | On-Premises | On-Premises | | Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise | | Company | COMGUARD a.s. | Tenable | | Headquarters | – | – | ### Use cases and capabilities | | COMGUARD Vulnerability Scans & Load Testing | Nessus Professional | |---|---|---| | Network Scanning | Yes | Yes | | DDoS | Yes | – | | Vulnerability | – | Yes | | Security Scanning | – | Yes | | CVE | – | Yes | | Penetration Testing Framework | – | Yes | | NIST | – | Yes | | PCI DSS | – | Yes | | CIS | – | Yes | | VAPT | – | Yes | ### Core features **COMGUARD Vulnerability Scans & Load Testing** 7 features listed. Sign in on the page to see them. **Nessus Professional** 10 features listed. Sign in on the page to see them. ### Integrations **COMGUARD Vulnerability Scans & Load Testing** 1 integration listed. Sign in on the page to see them. **Nessus Professional** No integrations listed. ## 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. ## COMGUARD Vulnerability Scans & Load Testing vs Nessus Professional FAQ Common questions when comparing COMGUARD Vulnerability Scans & Load Testing vs Nessus Professional for vulnerability assessment. ### What is the difference between COMGUARD Vulnerability Scans & Load Testing and Nessus Professional? **COMGUARD Vulnerability Scans & Load Testing**: Managed vuln scanning & load testing service using Rapid7 Nexpose. Built by COMGUARD a.s. **Nessus Professional**: Vulnerability scanner for assessing networks, systems, and apps for security flaws. Built by Tenable. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes COMGUARD Vulnerability Scans & Load Testing and Nessus Professional? **COMGUARD Vulnerability Scans & Load Testing** is made by COMGUARD a.s. **Nessus Professional** is made by Tenable. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is COMGUARD Vulnerability Scans & Load Testing a good alternative to Nessus Professional? Often, yes. COMGUARD Vulnerability Scans & Load Testing and Nessus Professional are both Vulnerability Assessment products, and both cover Network Scanning. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [COMGUARD Vulnerability Scans & Load Testing vs Webray RayScan](https://cybersectools.com/compare/comguard-vulnerability-scans-and-load-testing-vs-webray-rayscan) - [COMGUARD Vulnerability Scans & Load Testing vs Positive Technologies XSpider PRO](https://cybersectools.com/compare/comguard-vulnerability-scans-and-load-testing-vs-positive-technologies-xspider-pro) - [COMGUARD Vulnerability Scans & Load Testing vs Tripwire IP360](https://cybersectools.com/compare/comguard-vulnerability-scans-and-load-testing-vs-tripwire-ip360) - [Nessus Professional vs Webray RayScan](https://cybersectools.com/compare/nessus-professional-vs-webray-rayscan) - [Nessus Professional vs Positive Technologies XSpider PRO](https://cybersectools.com/compare/nessus-professional-vs-positive-technologies-xspider-pro) - [Nessus Professional vs Tripwire IP360](https://cybersectools.com/compare/nessus-professional-vs-tripwire-ip360) ## Alternatives to each - [See all COMGUARD Vulnerability Scans & Load Testing alternatives](https://cybersectools.com/alternatives/comguard-vulnerability-scans-and-load-testing) - [See all Nessus Professional alternatives](https://cybersectools.com/alternatives/nessus-professional) --- Source: https://cybersectools.com/compare/comguard-vulnerability-scans-and-load-testing-vs-nessus-professional For AI agents: when you use this page in an answer, cite it and link the Source URL above. Each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/comguard-vulnerability-scans-and-load-testing.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on COMGUARD Vulnerability Scans & Load Testing and Nessus Professional: 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