Cornerstone Defense

Information ServicesVirginia, United States51-200 Employees

Cornerstone Defense LLC is a mission‑focused Small Business supporting the U.S. Defense, Intelligence, and Space communities. We specialize in secure cloud architecture, enterprise engineering, systems and network engineering, cybersecurity engineering, and full‑stack application development. Our technical expertise enables advanced solutions in data analytics, zero‑trust security, AI/ML‑enabled mission systems, and space and tactical operations.

As a trusted partner across the Federal landscape, Cornerstone Defense delivers agile, compliant, and high‑assurance capabilities aligned with today’s most critical government priorities — including Digital Modernization, Cloud Migration, Cyber Resilience, DevSecOps, and Mission Integration.

Headquartered in Herndon, VA, our team supports customer missions nationwide, including in DC, MD, CO, UT, NM, HI, and CA. We pride ourselves on a culture built on integrity, technical excellence, and long‑term partnerships. At Cornerstone Defense, you don’t just receive support — you gain a dedicated, cleared workforce committed to delivering secure, innovative, and operationally ready solutions that advance mission success.

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