Tenable Holdings, Inc.

Tenable is a cybersecurity company focused on exposure management. It helps organizations understand, prioritize, and reduce cyber risk across IT infrastructure, cloud environments, operational technology, and web applications. Founded in 2002 in Columbia, Maryland, Tenable created Nessus, one of the most widely deployed vulnerability scanning tools in the world.

The Tenable One Exposure Management Platform brings together vulnerability management, cloud security posture management, identity exposure, web application scanning, and attack surface management into a single view. Security teams can see their entire attack surface, from traditional on-premises assets to cloud workloads, containers, Active Directory, and OT/IoT devices. The key is prioritization. Instead of ranking threats by raw CVSS scores, Tenable prioritizes based on actual exploitability and business context. That's a significant difference in practice.

Products include Tenable Vulnerability Management for cloud-based scanning, Tenable Cloud Security (formerly Ermetic) for cloud-native protection, Tenable Identity Exposure for Active Directory security, and Tenable OT Security for industrial and critical infrastructure. Vulnerability Priority Rating and Attack Path Analysis use machine learning to contextualize threats, which significantly reduces alert fatigue. Imagine a security team getting thousands of vulnerability alerts per week. Tenable helps them focus on the handful that attackers could actually exploit.

Tenable serves about 44,000 customers globally, including roughly 65% of the Fortune 500. Financial services, healthcare, government, and technology are the strongest verticals. Annual revenue is approximately $800 million. Subscriptions drive over 95% of recurring revenue. Gross margins exceed 78%. The company employs around 2,200 people.