Qualys provides a cloud-based cybersecurity platform that helps organizations identify IT assets, detect vulnerabilities, quantify risk, and automate remediation. The platform is delivered as a multi-tenant SaaS solution and spans on-premises, cloud, endpoint, container, and mobile environments. The core product is Vulnerability Management, Detection and Response (VMDR), which continuously scans an organization's asset base for vulnerabilities, prioritizes them using threat intelligence, and integrates with patching tools to drive remediation. Qualys serves over 10,000 customers, including enterprises and government agencies, with about 56% of revenue from U.S. customers. Qualys sells through a direct sales force and increasingly through channel partners — MSSPs, resellers, and consulting firms — which accounted for about 51% of revenue in FY25. The company's key strategic initiative is Enterprise TruRisk Management (ETM), an orchestration layer that ingests security findings from both Qualys and third-party tools, quantifies risk in financial terms, and drives automated remediation. Qualys is positioning ETM as the foundation of a "Risk Operations Center" category — a proactive, pre-breach counterpart to the traditional Security Operations Center. Beyond ETM, the platform includes Patch Management, cloud security (TotalCloud), compliance automation, and web application security. Qualys sells annual SaaS subscriptions priced per asset managed, invoiced upfront, producing highly predictable recurring revenue. The business model is highly profitable, with revenue growth driven by upselling existing customers to additional modules and acquiring new logos through the partner channel.