How Much Does CMMC Level 2 Actually Cost for a 300-Person Manufacturer?

The DoD’s own rulemaking estimates that getting through a Level 2 certification assessment costs a mid-sized contractor somewhere around $105,000 to $118,000, counting both the assessor’s fee and the internal labor to support the assessment. 

That figure anchors almost every cost article written about CMMC. But for a 300-person manufacturer with a production floor, it sets the wrong expectation.

That estimate covers the assessment event and the work immediately around it. It doesn’t price the eighteen months of remediation that gets you ready, the tooling you carry every year after, or the part of your environment most cost guides quietly assume isn’t there: the shop floor. 

The C3PAO’s own fee is a smaller piece still, typically $35,000 to $75,000 for an organization this size. 

Stack the full picture together and a real 300-person manufacturer lands closer to $150,000 to $300,000 all-in for the first cycle. 

The spread is wide because the inputs that move it have almost nothing to do with how many people work at the company.

Headcount isn’t the cost driver. Scope is.

Two manufacturers with 300 employees each can land $150,000 apart, and the difference is entirely in how they draw the boundary.

What sets the price is the size of the environment that touches Controlled Unclassified Information (CUI). That covers:

• The count of end users who handle CUI
• The number of systems and data flows that store or transmit it
• The number of physical sites in the boundary
• Whether any of those systems live on the production floor

A 300-person company where only 25 engineers touch CUI inside a tightly drawn enclave is a far smaller assessment than a 300-person company that let CUI sprawl across email, three file shares, two plants, and a handful of machines on the shop floor.

Headcount is a rough proxy at best. It tells an estimator how big the company is, not how big the regulated environment is. 

The companies that get burned on cost are the ones that assume those two things are the same. 

Scoping your CUI environment is essential ahead of the November CMMC Level 2 assessment requirements. 

Where the money goes

The assessment fee people fixate on is usually the smallest line on the invoice. Across a full first cycle, the C3PAO assessment is typically 20 to 30 percent of total spend. The rest is preparation and the technology you keep paying for, year after year.

Cost component	Typical range	Recurring?	What moves it
Gap assessment / readiness	$15K to $40K	One-time	Number of sites and systems in scope
Remediation & control implementation	$40K to $150K+	One-time	Starting maturity; how many controls already met
SSP & documentation	$12K to $60K	One-time	Number of systems and data flows to document
Tooling (GCC High, EDR, SIEM, scanning, backup)	$60K to $180K+ (year one)	Mostly recurring	In-scope user count and log volume
C3PAO assessment	$35K to $75K	Per cycle (3 yrs)	Environment size and complexity
Annual affirmation & maintenance	20 to 30% of year one	Recurring	Tooling licenses, monitoring, evidence upkeep

These figures are modeled ranges drawn from published 2026 cost data and DoD rulemaking, not a quote for any specific company.

There are two lines here that manufacturers misjudge most.

Remediation is the largest variable. It’s the actual work of closing gaps: rebuilding identity and access, standing up logging, segmenting networks, and writing the policies and procedures an assessor expects to see. A company that already runs MFA, has EDR deployed, and keeps decent documentation spends a fraction of what a company starting near zero does. 

It’s why we start with readiness, not remediation.

Tooling is the line that never stops. Microsoft 365 GCC High, the government-community-cloud tenant most defense contractors move to, runs roughly $50 to $70 per user per month, which works out to $40,000 to $70,000 a year at 300 seats, though smart scoping usually means far fewer licensed users than total headcount. 

Add EDR or XDR priced per endpoint, a SIEM or log-aggregation platform that can run $15,000 to $60,000 a year depending on log volume, plus vulnerability scanning and backup. Most of it recurs. The labor to stand it all up is a one-time cost layered onto the first year, but the licenses come back every year you hold the certification.

The OT premium nobody prices in

The part that separates a manufacturer’s real number from an office-priced estimate is the production floor.

Most CMMC cost guidance is written for environments that look like an office, with laptops, servers, and cloud apps all modern enough to run a security agent. 

A defense manufacturer’s operational technology doesn’t behave that way. Programmable logic controllers, human-machine interfaces, and SCADA systems were built for uptime and longevity, not for endpoint detection. Many can’t run modern agents at all. Others can’t be patched without vendor sign-off, or taken offline without halting production.

When CUI touches that environment, like drawings sent to a CNC machine or specs living on an HMI, the cost of compliance climbs. 

You’re looking at network segmentation to isolate OT, compensating controls in place of agents that won’t install, jump hosts and monitoring built for industrial systems, and assessor time spent validating that each compensating control genuinely satisfies the requirement. 

None of that appears in an IT-only estimate.

An OT footprint adds 20 to 35 percent to total cost in practice. On a $200,000 base, that’s $40,000 to $70,000 you never budgeted for, because the article you read priced an office.

300 people, one plant, a real shop floor

Take a defense subcontractor with 300 employees. 

Most of them never touch CUI. The regulated work sits with about 40 engineers and program staff, the CUI lives across 8 systems and data flows, there’s one manufacturing site, and a portion of the production floor receives controlled technical drawings, putting it at a light-to-moderate OT footprint. 

Going in, the company has partial controls: MFA in places, no centralized logging, documentation that exists but wouldn’t survive an assessment.

Now keep everything about that company the same, and change only the boundary. Suppose it tightens scope to 25 in-scope users instead of 40, pulls a few systems out of the CUI flow, and confirms the controlled drawings can be handled inside an enclave rather than across the open floor. The same engagement reprices:

Line item	40 in-scope users (open floor)	25 in-scope users (enclave)
Gap / readiness	$30K	$24K
Remediation	$90K	$58K
SSP & documentation	$35K	$26K
Tooling (year one)	$110K	$72K
C3PAO assessment	$50K	$42K
OT premium (~20%)	$63K	$33K
Year-one all-in	~$290K to $340K	~$210K to $250K
Recurring annual carry	$90K to $120K	$60K to $80K

Same company. Same 300 employees. Same certification. The difference between the boundaries is worth $60,000 to $100,000 in the first year alone.

The bottom row is the one to sit with. The annual carry drops from the $90K-to-$120K range down to $60K-to-$80K, and unlike the one-time lines above it, that gap reappears every year you hold the certification.

Scope is the budget decision

Every number in this article is downstream of one choice: what you allow inside the boundary.

Reducing in-scope users from 100 to 25 isn’t a one-time line-item saving. It: 

• Cuts remediation
• Shrinks the GCC High and EDR licenses you pay for monthly
• Lowers the SIEM’s log volume
• Shortens the SSP
• Speeds the assessment

Then that smaller annual carry repeats, across all three years of the certification term and into the renewal after it. The saving compounds.

Enclaving CUI into a dedicated, tightly controlled environment is one of the most effective ways to keep that boundary small. 

Even with an enclave, manufacturers routinely over-scope. They pull in users who never touch CUI, devices that don’t need to be there, and systems that could sit outside the line entirely. Every one of those is a control to implement, a license to buy, and evidence to maintain for years.

The cheapest control is the one you don’t have to implement, because it’s out of scope. The work that saves the most money happens before remediation, before you buy a single tool, before the C3PAO is even called. It’s confirming the boundary is as small as it can defensibly be, and that every option to reduce it has been exhausted first.

Fellsway does that work from the outset. 

Our CMMC On-Ramp develops a defensible boundary hypothesis before any engineering begins, so you commit budget against the right scope, not an inflated one. 

But first, our free 60-minute CMMC Readiness Workshop tells you where you stand and what your number is likely to be.

Within the hour you’ll know whether Level 2 applies to your contracts, where your current posture sits, and whether your situation calls for validating an existing program or building one from the ground up. You’ll also leave with a defensible cost and timeline range to plan around.

Because while risk is constant, ready is a choice.

Schedule your free CMMC Readiness Workshop.