Tenable

Tenable invented the network vulnerability scanner with Nessus (launched in 1998, now the world's most deployed cybersecurity tool with 2+ billion scans per year) and has evolved into the exposure management platform of record for 44,000+ organizations. Its Tenable One platform aggregates vulnerability data from endpoints, cloud instances, web applications, and OT systems into a single risk-scored exposure view. The company's cloud security posture management (CSPM) product has become a standard compliance tool for SOC 2 and ISO 27001 audits at high-growth SaaS companies.