Echo today announced raising $35 million in a Series A funding round that brings the total raised by the company to $50 million.
The investment round was led by N47, with additional support from Notable Capital, Hyperwise Ventures, and SentinelOne’s S Ventures.
Tel Aviv-based Echo uses AI agents to build Docker images that eliminate vulnerabilities at the source.
For that, the company strips open source images of non-essential components, reducing the attack surface, but maintaining their functionality.
Designed as drop-in replacements for standard Docker images, Echo’s CVE-free container base images can be used by modifying a single line of code in Dockerfile, the company says.
In addition to building these images from scratch, Echo’s AI agents work autonomously to maintain them as new security defects are discovered.
When a new flaw is discovered, the agents research it, identify the affected images out of a pool of over 600, seek or build fixes, apply them, run compatibility tests, and create pull requests.
Founded in 2025 by Eilon Elhadad and Eylam Milner (who also founded Aqua Security-acquired Argon), Echo raised $15 million in seed funding this summer.
“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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