DarkHorizon LLC is an SBA-certified SDVOSB/VOSB cybersecurity firm delivering mission-focused cyber defense for the Department of Defense, federal agencies, prime contractors, and critical infrastructure operators. We provide RMF/ATO execution, CMMC and NIST 800-171/172/800-53 compliance, Zero Trust architecture, OT/ICS security, cyber range engineering, incident response, threat hunting, XDR/SIEM integration, vulnerability assessment, penetration testing, and red/blue/purple team validation. Our practitioners bring senior experience across defense, space, energy, nuclear, transportation, cloud, and industrial environments. DarkHorizon translates mission risk into defensible controls, audit-ready evidence, resilient architectures, and operational security capability. We support SDVOSB set-aside, sole-source when applicable, subcontracting, teaming, market research, RFI, and technical delivery requirements. UEI: SWT3JFJ3ZY45 | CAGE: 19AX2.
| Certification | Service-Disabled Veteran-Owned · SBA Certified |
|---|---|
| Certified by | SBA VetCert |
| SBA Record | https://search.certifications.sba.gov/profile/SWT3JFJ3ZY45/19AX2 |
| Established | 2026 |
| Based in | Tomball, TX |
| Phone | (808) 979-4018 |
| Website | Available on upgraded listings — upgrade this listing |
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