Seal Security

Seal Security, established in 2022, operates within the application security sector, focusing on the remediation of vulnerabilities in open-source software. The company was founded by Itamar Sher (CEO), Lev Pachmanov (CTO), and Alon Navon (CPO), who bring over 30 years of combined experience in vulnerability mitigation and exploitation. Several founders are former members of Israel's elite Unit 8200 intelligence unit.

The firm targets the problem of ever-expanding vulnerability backlogs that overwhelm security and development teams. Its core business revolves around providing automated, production-ready security patches for vulnerabilities found in open-source components without necessitating disruptive version upgrades. This service is critical for application security, DevOps, and DevSecOps teams who are tasked with maintaining security and compliance for their software. The company's business model addresses the entire software stack, including application dependencies, operating systems, container base images, and even legacy and end-of-life (EOL) code.

Seal Security's platform utilizes generative AI and large language models (LLMs) to create an automated pipeline that generates and validates security patches. This technology allows the company to offer a Service Level Agreement (SLA) to remediate critical and high-severity CVEs within 72 hours of their public disclosure. The solution provides standalone patches that can be deployed across an organization from a centralized control panel, significantly reducing the manual effort and technical debt associated with vulnerability management. By delivering backported, compatible patches, the platform allows clients to maintain their development roadmaps without the instability that can arise from major version upgrades. The service integrates with common DevOps and DevSecOps tools such as GitHub, GitLab, Azure DevOps, and JFrog.

Since its inception, the company has secured significant financial backing. After a seed round of $7.4 million in February 2024, Seal Security raised an additional $13 million in a Series A round in July 2025, bringing its total funding to over $20 million. The Series A was led by Vertex Israel, with participation from investors including CCL, More Investments, SBI Group, and Crew Capital. This capital is intended to fuel the company's go-to-market strategy and the expansion of its core platform.

Keywords: open source security, vulnerability remediation, patch management, software supply chain security, DevSecOps, generative AI cybersecurity, automated security patching, application security, dependency management, container security, legacy system security, CVE remediation, software composition analysis, cybersecurity automation, compliance automation, FedRAMP, PCI DSS, technical debt reduction, vulnerability management, AI-driven security