Seal Security

Seal Security is a private Israeli cybersecurity company focused on software supply chain security, specifically on remediating vulnerabilities in open-source dependencies. Detailed public information on funding rounds, headcount, and executive structure is not available at a sufficient confidence level to report.

The company addresses a concrete problem: organizations that rely on open-source libraries are frequently exposed to vulnerabilities where the upstream maintainer has not backported a fix to older versions, or where upgrading to a patched version requires breaking code changes. Seal Security delivers backported security patches for older versions of open-source packages, allowing engineering and AppSec teams to close known CVEs without forcing a full version upgrade. The primary buyers are AppSec and DevSecOps teams in enterprises managing production codebases.