Tenable is a cybersecurity company founded in 2002 and specialising in exposure management - helping organisations identify, understand, and reduce cyber risk across their full attack surface. Its work spans vulnerability management, cloud security, identity security, and the security of AI systems. The company is publicly traded and serves more than 44,000 customers worldwide, including 65% of the Fortune 500 and 45% of the Global 2000.
Tenable's roots lie in Nessus, a vulnerability-scanning tool that became one of the most widely used in the security industry. The company has since built that foundation into the Tenable Exposure Management platform, a broader offering that aggregates visibility across an organisation's entire attack surface and applies context and prioritisation to help security teams determine what to address first. The platform covers cloud environments, identity infrastructure, and AI systems alongside traditional vulnerability scanning.
The technical teams at Tenable include security researchers, engineers, and data scientists working on threat detection, risk modelling, and remediation guidance. The company's core engineering challenge is converting large volumes of exposure data into actionable intelligence - a problem that sits at the intersection of security research, data analysis, and product development.