Leading Software Composition Analysis (SCA) tools help organizations identify open‑source components, detect security vulnerabilities, and ensure license compliance in modern software by analyzing dependencies and integrating with development workflows. Widely used platforms include Snyk, Black Duck, Mend (formerly WhiteSource), Sonatype Nexus Lifecycle, FOSSA, GitHub Dependency Review, OWASP Dependency‑Check, Checkmarx SCA, Anchore, and JFrog Xray. Snyk and GitHub Dependency Review are popular with developers for real‑time vulnerability detection using CVE databases, automated remediation suggestions, strong CI/CD and DevSecOps integrations, and policy enforcement. Black Duck, Mend, and Sonatype Nexus Lifecycle offer deep vulnerability and license risk analysis, SBOM generation, comprehensive analytics dashboards, and enterprise‑level scalability for large application portfolios. FOSSA focuses on license compliance and risk governance, while Anchore and JFrog Xray provide container and artifact scanning with pipeline integration. Checkmarx SCA adds context with application‑centric security insights, and OWASP Dependency‑Check is a widely used open‑source option for basic scanning. These tools vary in depth of vulnerability and license analysis, automation, integration capabilities, reporting, scalability, and ease of deployment, allowing teams to choose solutions based on their security needs, development environment, and organizational scale.