Nexus Core Security Group LLC (NCSG) is a specialized physical security firm built for the environments the digital economy depends on: data centers, colocation facilities, hyperscale campuses, and critical infrastructure operations.
They are high-value, high-consequence facilities housing the digital backbone of commerce, government, and national security. We understand that reality at the operational level. Our programs are purpose-built for Tier I–IV data center environments — layered access control, mantrap and tailgating prevention, 24/7 GSOC-integrated monitoring, and compliance-ready documentation that stands up under SOC 2 Type II audit scrutiny.
Nexus Core is a certified Veteran-Owned Small Business (VOSB) and Service-Disabled Veteran-Owned Small Business (SDVOSB), headquartered in San Antonio, Texas, with mission support centers across the country's major infrastructure markets.
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To protect mission-critical infrastructure with the discipline, rigor, and accountability the environment demands — where downtime is not an option.
Cleared, compliance-driven execution: audit-ready documentation, executive visibility, and operators trained to perform under pressure.
Layered, purpose-built security programs aligned to each facility's tier, risk posture, and federal or enterprise obligations.
Connect with Nexus Core Security Group to discuss your environment, security priorities, and operating requirements.