Last updated 08-09-2026
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Tenable
Tenable gives security teams a web platform to find, prioritize, and fix cyber exposures across cloud, on-prem, identity, OT, and AI workloads. Its flagship Tenable One product unifies vulnerability scanning, attack path analysis, and remediation workflows so you can see how weaknesses connect before attackers exploit them.
Point solutions typically cover one domain at a time. Tenable One pulls signals from infrastructure, cloud configs, Active Directory, third-party apps, and AI integrations into one exposure map. Tenable Hexa AI adds agentic orchestration that ranks fixes by real exploit likelihood rather than raw CVSS scores alone.
Enterprise security and IT teams are the core buyers. Nessus Professional starts at $4,790 per year for standalone scanning, while Tenable One Vulnerability Management covers 100 assets from $3,500 annually. Free trials are available for cloud vulnerability management and web app scanning.
Tenable One unifies visibility across cloud, identity, OT, and AI attack surfaces
Tenable Hexa AI provides agentic orchestration for risk-based remediation
Nessus Professional vulnerability scanner from $4,790 per year
Tenable One Vulnerability Management for 100 assets at $3,500 per year
Named a Leader in the 2025 Gartner Magic Quadrant for Exposure Assessment Platforms
Free trials available for cloud vulnerability management and web app scanning
AI Exposure module covers LLM integrations, shadow AI, and data pipeline misconfigurations
Unified exposure view across cloud, identity, OT, and AI domains
Gartner Magic Quadrant Leader for Exposure Assessment Platforms in 2025
Free trials for cloud vulnerability management and web app scanning
Nessus remains one of the most widely used vulnerability scanners
Enterprise pricing starts above $3,500 per year for 100 assets
Full Tenable One platform requires sales engagement for custom quotes
Complex product portfolio can be overwhelming for small teams
What is Tenable One?
Tenable One is Tenable's exposure management platform that unifies visibility, insight, and action across cloud, identity, OT, and AI attack surfaces. It includes Tenable Hexa AI for agentic remediation orchestration.
How much does Tenable Nessus Professional cost?
Tenable Nessus Professional costs $4,790 for a 1-year license. Two-year and three-year licenses are available at discounted rates, with optional advanced support for $400.
Does Tenable offer a free trial?
Yes. Tenable offers free trials for Tenable One Vulnerability Management and Tenable One Web App Scanning. Nessus Professional and Nessus Expert also have free trial options.
What is Tenable Hexa AI?
Tenable Hexa AI is an agentic fleet built on Tenable's Exposure Data Fabric. It prioritizes exposures by exploit path and coordinates remediation actions across security teams and AI agents.
Which cloud platforms does Tenable support?
Tenable One Cloud Exposure is a CNAPP that covers multi-cloud and hybrid environments. It detects misconfigurations, risky entitlements, and vulnerabilities across major cloud providers.
What industries use Tenable?
Tenable serves enterprise security teams managing IT, cloud, OT, and identity exposure. Products cover vulnerability management, attack surface management, patch management, and AI exposure monitoring.