CMMC & Defense Contractor IT Compliance in Charleston, SC

CMMC & Defense Contractor IT Compliance in Charleston, SC

Charleston’s defense and aerospace supply chain runs through Joint Base Charleston, Boeing’s North Charleston campus, and the hundreds of subcontractors that support them — and every one of those contracts now flows CMMC 2.0 requirements down the chain. If your business touches Controlled Unclassified Information (CUI), your IT environment isn’t just an operations question anymore. It’s a condition of keeping the contract. AT-NET helps Charleston-area contractors and subcontractors get compliant and stay that way.

What CMMC-Ready IT Actually Requires

Compliance isn’t a one-time audit — it’s a documented, defensible security posture your primes and assessors can verify. AT-NET’s Charleston team builds and maintains:

  • CMMC Level 1 & Level 2 gap assessments — a clear picture of where your environment stands against the controls you’re required to meet.
  • SSP & POA&M development — the System Security Plan and Plan of Action & Milestones documentation your contracts require.
  • CUI handling & data segmentation — isolating Controlled Unclassified Information so it’s protected without slowing down the rest of your business.
  • NIST 800-171 control implementation — the underlying technical and administrative controls CMMC is built on.
  • DFARS clause compliance support — documentation and controls mapped to what your contracting officers expect to see.
  • Ongoing compliance monitoring — because a control that passed last year’s assessment can drift out of compliance without anyone noticing.

Built for Charleston’s Defense & Aerospace Supply Chain

From machine shops supporting Boeing’s supply chain to logistics and engineering firms working Joint Base Charleston contracts, the Lowcountry’s defense economy runs on companies that most people never hear about — but whose compliance posture determines whether they keep the work. AT-NET is a Registered Provider Organization (RPO) already guiding clients across the Carolinas through CMMC readiness, and we bring that same structured approach to Charleston’s defense contractor base.

Why Charleston Defense Contractors Choose AT-NET

You get a documented compliance posture you can hand directly to a prime contractor or a C3PAO assessor, a named point of contact who understands defense-industrial requirements, and a local team that treats a compliance gap as urgent — not a ticket in a queue.

Get a Free CMMC Readiness Assessment

Find out where your business stands before your next contract renewal — or your next assessment — requires you to know. Talk to AT-NET’s Charleston team about a no-obligation CMMC gap assessment.

Picture of Jeffrey King
Jeffrey King

President of AT-NET | Managed Technology Solutions Expert | Cybersecurity Specialist

Jeffrey King is an experienced leader in managed technology solutions with more than 20 years of expertise. As President of AT-NET, he oversees a wide range of services including IT support, cloud solutions, cybersecurity, and business risk management.

His work focuses on cybersecurity and network architecture, with hands-on skills across Unix, VMware, Linux, Cisco, and Microsoft systems. Under his leadership, AT-NET delivers solutions in areas such as compliance (HIPAA, CMMC, PCI, SEC, FINRA), vulnerability management, data backup and recovery, email and endpoint security, and IT project management.

Jeffrey also guides initiatives in co-managed IT services, structured cabling, VoIP systems, and integrated security technologies such as cameras and access control.

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