The real reason CMMC costs are shocking companies

Well before the Cybersecurity Maturity Model Certification (CMMC) went into effect in November 2025, a major concern within the defense industrial base was the cost of attaining and maintaining certification.

Now that the phased rollout of CMMC is well underway, some companies report that the accumulation of complex and costly regulatory requirements is forcing them to reconsider—if not exit—the defense marketplace altogether.

In fact, industry analysts project that 15% to 20% of the DIB, representing 33,000 to 44,000 companies, may exit the defense market entirely because compliance costs exceed the value of their work with the Department of Defense.

It’s important to understand that security investments are not a new requirement, they have been in place for years as noted in National Institute of Standards and Technology (NIST) SP 800-171r2, required under DFARS 252.204-7012. CMMC is only validating these pre-existing cybersecurity standards. As a result, if implementation and preparation costs have not already been considered, current cost pressures reflect not a new mandate, but delayed compliance.

Implementation vs. Assessment Cost

Implementation and assessment efforts represent fundamentally different stages of CMMC. Implementation cost is what contractors spend to build and operationalize a compliant environment. This includes implementing technical controls, defining scope, establishing boundaries, developing documentation, and ensuring policies and procedures are actually in practice. Implementation is not a new expectation.

Contractors that store, process, and/or transmit controlled unclassified information (CUI) have been required to implement requirements outlined by NIST SP 800-171 since 2017. CMMC does not introduce these requirements; it introduces verification through assessment.

Assessment cost, on the other hand, is what contractors, or Organizations Seeking Certification (OSCs), spend to validate what has been implemented. It is a point-in-time evaluation conducted by a CMMC certified third-party assessor organization (C3PAO) to confirm that controls are in place and functioning as intended.

One of the most common challenges in the market today is that organizations continue to group these costs together, often because implementation was not completed in advance. That results in OSCs implementing controls while simultaneously pursuing assessment, rather than following the model CMMC was built on (which assumes contractors have already implemented these requirements).

This blurring of costs is also the core driver of cost shock. The DoD's official estimates for a Level 2 third-party certification range from $104,670 for small entities to $117,768 for larger entities over three years — but those figures cover only assessment, certification, and affirmation activities, and notably exclude gap assessments, mock assessments, remediation, and pre-assessment consulting.

The rule explicitly states that implementation costs are excluded because the implementation costs of DFARS 7012 were adjudicated during that rulemaking. Notably, these two figures are remarkably close despite representing vastly different-sized organizations, reflecting the DoD's standardized assessment model, which does not account for environmental complexity, scope size, or the depth of remediation required. In practice, the gap between small and large organization costs is far wider than the government estimates suggest.

Understanding Cost Variability

There is no “one size fits all” when it comes to an organization’s CMMC journey and the associated cost. It is highly dependent on factors such as scope, existing security maturity, environmental complexity documentation readiness and workforce and labor.

Public cost estimates included in rulemaking provide a general framework for understanding potential impact captures, but they do not reflect the full variability observed in practice.

In addition to core documents like 32 CFR, Part 170 and scoping guidance resources that can help define what is actually required to protect CUI and avoid over-scoping, organizations should look for key partners in the CMMC ecosystem for personalized guidance.  

A good place to start is to perform an internal readiness or gap assessment. This can serve as a baseline for understanding where you are in your CMMC readiness journey, and help provide clarity for how to move forward.

The Long-term Business Value of Compliance

Implementation and assessment each play a different role in advancing the success of an organization’s business. Implementation includes the cost of building and maintaining a compliant environment, which directly supports the protection of CUI, strengthens the DIB, and ultimately safeguards national security and the warfighter.

These investments improve an organization’s overall security posture, reduce risk and create more resilient operations. This is where the real security value is created.

A C3PAO-led CMMC assessment is what enables organizations to demonstrate that value to the DoD and their partners. It validates that requirements have been properly implemented and are being maintained.

This validation enables organizations to maintain existing contracts, satisfy flow-Departmental requirements from primes, and compete for new opportunities. This fortifies and establishes trust with the DoD. The assessment is not just a compliance exercise; it is a business enabler.

Beyond contract eligibility, organizations also see operational benefits. A more mature security posture can support stronger risk management, improve internal processes, and, in some cases, contribute to long-term efficiencies, such as better positioning with cyber insurance providers or the ability to scale compliance across multiple contracts.

The investment also carries competitive weight: CMMC requirements are rolling out in four phases between 2025 and 2028, with full applicability to all covered DoD contracts required by Nov. 10, 2028, meaning every DIB contractor handling FCI or CUI will need to demonstrate certified compliance as a condition of award. For many contractors, losing DoD contract eligibility would represent an existential threat to their business.

The Cost of Waiting

As the CMMC ecosystem matures, approaches to implementation and assessment continue to evolve. This includes differences in how services are structured and how organizations sequence their efforts—all of which influence overall cost.

By understanding the different components of implementation and assessment, organizations can effectively strategize for the financial aspects of compliance, thereby strengthening our nation’s efforts to safeguard sensitive information. The sooner organizations establish a foundation of security, the sooner they can innovate at the speed the DoD demands.