“How much is this going to cost me?” is the first question every small defense contractor asks about CMMC — and the hardest to get a straight answer to, because most vendors hide their pricing. Here’s the honest breakdown, with real numbers, plus a way to estimate your own.

The costs, broken down

CMMC cost isn’t one number — it’s a stack:

1. The C3PAO assessment (Level 2)

For Level 2, the third-party assessment itself is a major line item. The DoD estimates roughly $105,000 over the three-year certification cycle for a small entity — and that’s just the assessment, not the work to get ready for it (LeadingIT).

2. Remediation + tooling

Getting to the point where you can pass an assessment — implementing the 110 NIST SP 800-171 controls, standing up the technical environment, documenting everything — is a separate, larger cost.

3. Managed CUI enclaves

Many small contractors use a managed enclave to isolate CUI. These are typically billed per user, per month — often around $295/user — which adds up fast as your team grows.

4. Consultants / managed programs

A full managed CMMC program or consultant engagement commonly runs $150,000–$500,000+ in year one. For a small shop, that can exceed the margin on the contract you’re trying to win.

Why it feels impossible for small contractors

Stack those together and a 20–50 person contractor is staring at numbers built for companies ten times their size. Worse, the whole category hides pricing behind “contact sales,” so you can’t even scope the cost without a sales call. That opacity is a big part of why CMMC feels so daunting to small businesses.

The cheaper, honest path

Here’s the good news: you don’t need the six-figure program to make real progress. The biggest, most affordable levers for a small contractor are:

• Workforce training — a large share of the 110 controls trace back to people (awareness, insider threat, incident response). Trackable, certificate-backed training is the cheapest high-impact starting point.
• Consolidated evidence — keeping training, records, and compliance evidence in one place (instead of four disconnected tools) slashes both cost and audit pain.
• Transparent, per-seat tooling — platforms priced per user, published openly, that cost a fraction of a consultant program.

That’s the model behind Readiness OS: assess, train, secure, and record on one platform, starting at $99/mo + $8/user — transparent pricing, no consultant retainer. For a 25-person contractor, that’s roughly $3,600/year versus a $150K+ consultant program.

Run your own numbers

Don’t take our word for it — see the math for your team. Our calculator compares Readiness OS against a managed enclave and a consultant program, using your headcount:

👉 Cost of Compliance calculator — no email required.

Then, if it makes sense, book a 20-minute demo.

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Cost figures are industry ranges and DoD estimates as of 2026; your actual costs vary by scope. General information, not a quote or compliance advice. Part of the CMMC for Small Contractors series.