Security Startups

Echo

Echo builds hardened, near vulnerability-free container base images and other software components that engineering and security teams can use as drop-in replacements for standard images.

Proof of life. Raised a $35M Series A led by N47, December 2025

About Echo

Echo supplies hardened software components for cloud applications, starting with container base images. AI agents rebuild images from scratch with only the essential components, which shrinks the attack surface.

The agents then track new CVEs, apply patches, run compatibility tests and open pull requests for human review. The images are meant as drop-in replacements for standard Docker images, and the company says its catalog has more than 600.

Echo also offers libraries, OS packages, VMs, Helm charts and end-of-life support. It was founded in 2025 in Tel Aviv. In August 2026 it acquired the technology and assets of Minimus, a hardened-image vendor that wound down.

Investors

Hyperwise VenturesN47Notable CapitalS Ventures
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