Echo, a Tel Aviv-based cybersecurity company focused on securing cloud infrastructure through artificial intelligence, has raised fresh capital of $35m.
The company announced it has secured $35m in a Series A funding round, bringing its total funding to $50m. The round was led by N47, with participation from Notable Capital, Hyperwise Ventures and SentinelOne’s S Ventures, claims Security Week.
Echo operates at the intersection of cloud security and AI, using autonomous AI agents to build Docker container images that are free from common vulnerabilities. By stripping open-source container images of non-essential components while preserving their functionality, the company aims to significantly reduce the attack surface that organisations inherit when deploying cloud services.
The company’s container base images are designed as drop-in replacements for standard Docker images, allowing engineering teams to adopt them by changing a single line of code in a Dockerfile. Echo says this approach enables organisations to eliminate known vulnerabilities at the source, rather than relying solely on downstream scanning and patching.
The newly raised capital will be used to accelerate product development and expand Echo’s use of AI agents that autonomously maintain container images as new security defects are discovered. When a new vulnerability emerges, the agents research the issue, identify affected images from a pool of more than 600, seek or create fixes, apply them, run compatibility tests and generate pull requests without manual intervention.
Echo was founded in 2025 by Eilon Elhadad and Eylam Milner, who previously co-founded Argon, which was acquired by Aqua Security. The founders argue that container security remains a structural problem for large enterprises operating at scale, where vulnerabilities are embedded long before developers begin writing application code.
“Large organizations with thousands of cloud services inherit millions of security issues before their engineers write a single line of code,” said Milner, who serves as Echo’s CTO, pointing out that most container flaws originate from the base image layer.
“Our time-to-value is instant, with customers immediately seeing their vulnerability count drop to zero when moving to Echo images,” Elhadad, who serves as the company’s CEO, said.
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