Nessus Professional Pricing 2026: Plans, Costs & Free Options

Last Updated: May 2026

Industry-standard vulnerability scanner with over 80000 plugins and compliance auditing. Nessus Professional currently offers a Paid pricing model. Below is a complete breakdown of all available plans, costs, and what each tier includes.

Pricing Plans

Nessus Essentials

Free (16 IPs max)

Includes

  • Basic vulnerability scanning
  • Up to 16 IP addresses
  • Community support only
  • Plugin updates

Best for: Students and personal lab environments

Nessus Professional

$3,990/year

Includes

  • Unlimited IP scanning
  • 80,000+ plugins
  • Compliance auditing (PCI DSS, CIS, DISA)
  • Advanced reporting
  • Email & phone support

Best for: Consultants, pentesters, and small security teams

Nessus Expert

$5,290/year

Includes

  • Everything in Professional
  • Cloud scanning (AWS, Azure, GCP)
  • Web application scanning
  • Attack surface management
  • Priority support

Best for: Teams needing cloud and web app coverage

Tenable One

Custom quote

Includes

  • Risk-based vulnerability management
  • Asset inventory & exposure scoring
  • SIEM/SOAR integrations
  • Enterprise SLA

Best for: Enterprise risk-based exposure management

Is Nessus Professional Worth It?

Nessus Professional at $3,990/year is the benchmark vulnerability scanner and one of the strongest ROI deals for consultants, pentesters, and small security teams — a single client engagement typically pays for the full year. Mid-market security engineers and compliance teams (PCI DSS, CIS, DISA STIG) get the strongest value from the 80,000+ plugins and built-in compliance auditing. Upgrade from Essentials (free, 16 IPs) the moment you need to scan more than your home lab. Nessus Expert at $5,290/year adds cloud and web application scanning — worth it for hybrid environments. Compared to Qualys VMDR at ~$2,995/year per asset bundle and Rapid7 InsightVM at higher per-asset pricing, Nessus Pro is significantly cheaper for unlimited internal IP scanning.

Pricing Tips & Discounts

Tenable offers academic and non-profit discounts on Nessus Professional through its Tenable for Education program (typically 30–50% off). Nessus Pro is billed annually only — no monthly option — and 2-year and 3-year prepay typically yields 5–10% discount. Nessus Essentials (free, 16 IPs) is the permanent free tier. A 7-day free trial of Nessus Professional is available. Black Friday and end-of-fiscal-year (October) promotions occasionally appear. See the official Tenable pricing page.

Frequently Asked Questions

Is Nessus Professional free?

No — Nessus Professional is a paid product at $3,990/year. However, Tenable offers Nessus Essentials as a permanently free version that scans up to 16 IP addresses.

What is the cheapest Nessus Professional plan?

The cheapest paid plan is Nessus Professional at $3,990/year, which provides unlimited IP scanning. Nessus Essentials is free but limited to 16 IPs.

Does Nessus Professional offer a free trial?

Yes — Tenable offers a 7-day free trial of Nessus Professional with full feature access. Nessus Essentials (16 IP limit) is also a permanent free option for evaluation and home lab use.

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