CMMC Certification and Assessment Services
Authorized C3PAO | Official CMMC Assessments | DoD Contractor Experience
CMMC requirements are being written into DoD contracts. Organizations that handle Controlled Unclassified Information (CUI) must achieve certification at the required level to continue competing for that work. As these requirements flow down through prime contractors, certification is becoming a condition of participation across the Defense Industrial Base.
Organizations that enter an assessment unprepared risk failing certification, delaying contract awards, or losing eligibility to compete.
Guernsey conducts official CMMC assessments as an authorized Certified Third-Party Assessment Organization (C3PAO) and prepares organizations to meet those requirements with systems that hold up under audit.
Guernsey was among the first organizations in the country to achieve C3PAO status and remains the only Oklahoma-based Certified Third-Party Assessment Organization (C3PAO), which authorizes the firm to provide CMMC assessments, or “audits,” for clients seeking certification to meet their contractual obligations.
What CMMC Requires
Organizations that handle Controlled Unclassified Information (CUI) must demonstrate compliance with CMMC requirements through a formal assessment. That includes:
- Implementation of NIST 800-171–aligned controls
- A complete and accurate System Security Plan (SSP)
- Documented Plans of Action and Milestones (POA&Ms)
- Evidence that controls are operating as intended
The standard is not whether policies exist. It is whether controls are implemented, documented, and defensible under audit.
Where Organizations Fail
Most CMMC efforts break in predictable ways:
- Controls are partially implemented but not auditable
- Documentation does not match actual system behavior
- SSPs describe an environment that does not exist in practice
- Evidence is incomplete, inconsistent, or not retained
- Internal teams prepare for compliance, not assessment
These gaps surface during assessment, when correction is slower, more expensive, and tied directly to contract risk.
Preparation and Assessment, Aligned
CMMC requires two distinct steps: preparing your environment and completing a third-party assessment. Most organizations treat these separately, which creates gaps between what is implemented and what is evaluated.
Guernsey aligns preparation and assessment into a single, controlled process.
- Preparation focuses on systems, documentation, and evidence
- Readiness validates that those elements meet assessment expectations
- Assessment, as a C3PAO, formally evaluates compliance for certification
One path from preparation to certification. No disconnect between advisory and evaluation.
How Guernsey Prepares You for Certification
We structure CMMC readiness around what the assessor will evaluate, not just what the framework requires.
Assessment-Aligned Readiness
- Evaluate your current state against CMMC requirements
- Identify control gaps and documentation gaps
- Prioritize actions based on assessment impact
System Security Plan (SSP) Development
- Build or refine SSPs that reflect actual system configurations
- Align documentation with implemented controls
- Ensure traceability between systems, controls, and policies
POA&M Development and Management
- Define realistic remediation actions
- Establish timelines tied to assessment readiness
- Track closure of gaps in a defensible way
Control Implementation and Validation
- Support implementation of required controls
- Align technical, administrative, and physical safeguards
- Validate that controls operate as required
Audit Readiness and Support
- Prepare teams for assessor interaction
- Organize evidence and artifacts
- Support your organization during the formal assessment process
Why Guernsey
CMMC is a compliance requirement. Certification depends on execution. Guernsey brings:
- Authorized C3PAO status to perform official assessments
- Extensive DoD contractor experience, including utility and infrastructure programs across military installations
- Independence from software and managed service sales, keeping the focus on compliance and audit readiness
- Experienced GRC professionals who operate at the intersection of implementation and assessment
- Longstanding experience in regulated environments, where documentation, process, and verification determine outcomes
This is not theoretical guidance. It is assessment-driven execution.
Start with a Readiness Assessment
Most organizations do not know whether they would pass an assessment today. A readiness assessment establishes that baseline and defines what must change before certification.
Download the CMMC Readiness Guide to evaluate your current state against required controls. These tools provide a baseline, but certification requires alignment between systems, documentation, and assessment expectations.
Who This Applies To- DoD prime contractors
- Subcontractors handling Controlled Unclassified Information (CUI)
- Organizations entering the Defense Industrial Base (DIB)
- Companies preparing for CMMC Level 2 certification
If your contracts require certification, preparation is not optional. It is a prerequisite to compete.
Determine Your CMMC Readiness
If you are preparing for certification or need an official assessment, start with a focused conversation. We will review your current state, identify the gaps that matter, and define a clear path to certification based on your environment and contract requirements.
