Seal Security Raises $13 Million in Series A

by Kay Aloha Villamor in July 30th, 2025

Seal Security, a Wilmington, DE–based application security startup, has raised $13 million in Series A funding, bringing its total funding to $20 million. 

Investors 

The round was led by Vertex Israel, with participation from Crew Capital, More Investments, SBI Group, and CCL. 

Seal Security Use of Funds 

The company will use the funds to support its go-to-market strategy and accelerate the expansion of its core platform for scalable, automated security patching. 

About Seal Security 

Seal Security provides application security solutions focused on eliminating vulnerabilities in open-source components and securing software supply chains. Its platform delivers automated, production-ready patches across the entire software stack—from application dependencies and operating systems to container base images. Headquartered in Wilmington, Delaware, Seal helps organizations secure current environments and ensure future deployments are protected from the start. 

Funding Details 

Company: Seal Security 

Raised: $13.0M 

Round: Series A 

Funding Date: July 2025 

Lead Investor: Vertex Israel 

Additional Investors: Crew Capital, More Investments, SBI Group, CCL 

Company Website: https://www.seal.security/  

Software Category: Application Security / Vulnerability Remediation / DevSecOps 

Source: https://www.prnewswire.com/news-releases/seal-security-raises-13m-series-a-to-secure-open-source-code-at-scale-302515952.html 

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