
First Column IT is headquartered in Manassas, VA — and has been the region's trusted managed IT service provider since 2002. As the seat of Prince William County and a hub for Department of Defense contractors, Manassas demands more than routine IT support. Our team delivers CMMC and NIST 800-171 compliance consulting, co-managed IT services, cloud migration, and enterprise-grade cybersecurity built specifically for the needs of Manassas businesses.
Being locally based means our team knows Manassas businesses intimately. When DoD contractors, healthcare practices, legal firms, or financial services companies in Manassas need to achieve CMMC 2.0 certification or tighten their NIST 800-171 compliance posture, they call First Column IT. Our registered CMMC practitioners serve as an extension of your team — guiding you from gap analysis to a fully audit-ready environment. And because we're right here in Prince William County, our team can be on-site when remote support isn't enough.
Manassas is home to a dense community of small-to-mid-size DoD sub-contractors handling Federal Contract Information (FCI) and Controlled Unclassified Information (CUI). First Column IT helps these businesses navigate CMMC 2.0 Levels 1 and 2, build System Security Plans (SSPs), and implement the technical controls — including multi-factor authentication, endpoint detection, and GCC High Microsoft 365 environments — required for certification and contract renewal.

From server hosting and cloud migration to co-managed IT support for businesses with existing in-house IT staff, First Column IT offers a flexible service model. You get enterprise-level infrastructure and strategic IT leadership through our virtual CIO program — all on a flat-rate monthly budget.