Israeli cybersecurity startup Seal Cybersecurity Solutions Inc. today revealed that it has raised $13 million in new funding to accelerate its go-to-market efforts and expand its core vulnerability remediation platform.

Founded in 2021 by former members of Israel’s Unit 8200 intelligence unit, Seal Security offers application security focused on eliminating vulnerabilities in open-source components through automated, production-ready patching.

As noted when the company last raised funding in February 2024, Seal Security leverages large language models to create an automated pipeline that increases patching capacity. The company’s service provides access to security patches across multiple programming languages and can remediate more than 95% of critical and high-severity vulnerabilities.

Seal Security’s platform offers automatic curation and remediation of open-source code, complete with ready-to-deploy patches that resolve security issues across application dependencies, operating systems and container base images.

The company has a patching-first approach designed to reduce risk without altering developer workflows. Seal allows organizations to take immediate action, often remediating critical issues within minutes, without flagging issues like traditional vulnerability scanners.

“Modern development moves faster than ever and traditional AppSec solutions can’t keep up,” said Chief Executive Itamar Sher. “At Seal, we believe the security of the code we build should be accelerated by LLMs, rather than having it exponentially grow our vulnerability backlog

The company’s platform also allows DevOps, DevSecOps and information technology teams to improve security operations by removing the burden of managing large vulnerability backlogs and tangled dependency trees.

Organizations that leverage Seal Security are said by the company to achieve immediate, ongoing value by resolving critical vulnerabilities within hours or even minutes, significantly reducing security risks. Seal also offers a 72-hour Common Vulnerabilities and Exposures remediation service level agreement.

The platform offers support for compliance frameworks like Payment Card Industry Data Security Standard, Federal Risk and Authorization Management Program, Digital Operational Resilience Act and the New York Department of Financial Services requirements, making it well-suited for organizations operating in highly regulated environments.

The Series A round was led by Vertex Ventures Israel Ltd., with More Investments Ltd., SBI Holdings Inc. and CCL Industries Inc. also participating.

“Seal is emerging as the de facto remediation layer for open source and container environments, in a market that’s rapidly shifting from passive detection to automated, scalable remediation,” said Tami Bronner, general partner at Vertex Ventures Israel.

Photo: Seal Security