Tenable

Tenable

Cyber exposure management platform provider specializing in vulnerability assessment and management.

About Tenable

Tenable is a leading exposure management company dedicated to helping organizations understand and mitigate their cybersecurity risks across a wide array of modern computing assets. Their innovative, AI-powered platform provides comprehensive security visibility and actionable insights, enabling businesses to protect against various threats, from IT infrastructure and cloud environments to critical infrastructure. With a commitment to reducing security exposure, Tenable serves over 44,000 customers globally, offering robust tools for security, vulnerability management, and compliance. By closing the cybersecurity gaps that can endanger business value, reputation, and trust, Tenable empowers organizations to enhance their defenses and manage risks effectively.

Editorial Review

Our take on Tenable

Tenable has built the market-leading vulnerability management and exposure management platform since its founding in 2002. Headquartered in Columbia, Maryland, Tenable is best known for Nessus, the world's most widely deployed vulnerability scanner used by millions of security professionals. The company went public in 2018 and continues expanding from vulnerability scanning to comprehensive cyber exposure management.

Tenable's platform includes Nessus vulnerability scanning, Tenable.io for cloud-delivered vulnerability management, Tenable.sc for on-premises deployments, Tenable.ad for Active Directory security, and web application scanning. Their Cyber Exposure approach goes beyond traditional vulnerability management to help organizations measure and communicate cyber risk in business terms. Tenable integrates with diverse IT environments including cloud platforms, containers, OT systems, and IoT devices. Their research team regularly discovers and reports critical vulnerabilities.

The company differentiates through comprehensive coverage across IT, cloud, OT, and IoT environments from a single platform. Tenable's Predictive Prioritization uses data science to focus remediation on vulnerabilities most likely to be exploited. Their exposure score provides business-friendly risk metrics that resonate with non-technical stakeholders. Strong community support and extensive integrations make Tenable easy to deploy and operate. However, effective use requires process maturity around vulnerability management.

For organizations requiring comprehensive vulnerability assessment and exposure management across diverse IT environments, Tenable delivers industry-standard capabilities. Their platform approach suits enterprises seeking to consolidate multiple scanning tools. Best fit for mature security programs requiring quantifiable risk metrics, organizations with heterogeneous IT environments spanning on-premises and cloud, and companies needing to demonstrate cyber risk reduction to boards and regulators.

Badges & Credentials

Verified credentials and recognition earned by Tenable

5 badges

Verification

Verified

This agency has a verified website presence.

LinkedIn Verified

This agency has a verified LinkedIn company page.

Recognition

Top Rated

This agency has an exceptional AgencyCluster score of 80+.

Experience

15+ Years

Established in 2002. Over 15 years of experience.

Company

Large Team

Large (201-500)

Awards & Recognition

Rankings earned on AgencyCluster

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About Tenable

Common questions about Tenable.

Where does Tenable rank on AgencyCluster?

Tenable has earned rankings on 4 AgencyCluster lists: Top 25 Cybersecurity Services, Top 50 Application Security Testing, Top 25 Application Security Testing, Top 50 Cybersecurity Services. Their highest AgencyCluster Score is 97/100. Rankings are merit-based and determined by evidence across six evaluation pillars — agencies cannot pay for higher positions.

What are Tenable's strengths according to AgencyCluster?

In our evaluation for Application Security Testing, Tenable scores 97/100 overall. Their strongest areas are Credibility, Proof of Work & Outcomes, Reputation, Delivery Maturity, Freshness, Category Fit. A high Outcomes score means they have verifiable case studies with measurable results — the most heavily weighted factor in our methodology.

How long has Tenable been in business?

Tenable was founded in 2002, giving them over two decades of experience in cybersecurity services. In an industry where many agencies are less than 5 years old, 24+ years of sustained operations signals stability, client retention, and the ability to adapt through multiple technology cycles. Today, the team is large team.

What does a typical cybersecurity services project cost with an agency like Tenable?

Penetration testing engagements cost $10K–$60K depending on scope. Security assessments and compliance readiness range from $20K–$100K. Managed security retainers (continuous monitoring, incident response) run $5K–$30K/month. These are industry benchmarks for cybersecurity services agencies at the level AgencyCluster curates. Actual pricing for Tenable will depend on project scope, timeline, and complexity — contact the agency directly for a custom quote.

Is Tenable a verified agency?

Yes. Tenable has been vetted and verified by AgencyCluster's editorial team through a rigorous, multi-factor review process. Unlike self-serve directories, AgencyCluster does not accept automated submissions — every agency is evaluated manually before being published. Our vetting covers identity verification (website, LinkedIn, domain age), business legitimacy (years of operation, team size, registered presence), evidence of work (case studies, portfolio, client outcomes), reputation checks across third-party platforms, activeness and freshness of their online presence, and screening for red flags including misconduct, fraud, or misleading claims. Agencies that fail any critical check are not listed. For Tenable, verified signals include a functioning website, LinkedIn company profile, 24+ years of operating history (founded 2002), 4 earned rankings on curated top lists.