Echo, a company building AI-powered secure software infrastructure for cloud applications, has raised $35 million in Series A financing led by N47, with participation from Notable Capital, Hyperwise Ventures, and SentinelOne’s S Ventures. The round follows Echo’s $15 million seed financing announced four months earlier, bringing the company’s total funding to $50 million raised in the past 10 months.
The New York based company is positioning its platform around a core problem in modern cloud software: most applications rely on container base images, and those images can carry large numbers of known vulnerabilities. Echo said its research indicates that widely used official Docker images, including Python, Node.js, and Go, each contain well over 1,000 known vulnerabilities, creating inherited risk across large enterprise environments before application developers begin writing code.
Echo’s approach centers on providing CVE free container base images that are built from scratch to remove vulnerabilities at the source. Instead of remediating existing open source images, Echo reconstructs them using only essential components and delivers them as drop in replacements for standard Docker images, aiming to reduce security exposure without changing developer workflows.
To maintain these images as new vulnerabilities are disclosed, Echo said it uses AI agents that autonomously create and update container images. The company described a workflow in which agents research newly discovered issues, identify affected images, develop or locate fixes, apply patches, and generate pull requests for human review. Echo said this model allows its team of 35 to maintain more than 600 secure images, a workload it argues would typically require hundreds of engineers using traditional methods.
Echo said it is already securing production workloads for enterprise customers including Varonis, EDB, and UiPath.
The company was founded by Eilon Elhadad and Eylam Milner, veterans of Israel’s 8200 technology unit. Echo also highlighted the founders’ prior track record in software supply chain security: their previous company, Argon, was acquired by Aqua Security for $100 million about a year after it was founded.
KEY QUOTES:
“Studies consistently show that more than 90% of container vulnerabilities originate from the base image layer rather than application code. This means enterprises with thousands of cloud services inherit millions of security issues before their engineers write a single line of code.”
Eylam Milner, Co-Founder & CTO, Echo
“AI agents now write more code than humans, while bad actors use AI to compress exploit windows from weeks down to hours. This AI-versus-AI arms race makes manual vulnerability management obsolete. Echo is building what every Fortune 1000 company needs: an AI-native OS that’s secure-by-design.”
Moshe Zilberstein, General Partner, N47
