We fix the systems that fail the mission.
CMMC compliance is our focus today.
Driving our work
Compliance is confusing.
Systems are bloated.
Progress is stalled.
Both DoD leaders and national security contractors are stuck in a world of legacy thinking, broken systems, and high costs. ATX Defense was founded to reengineer that nonsense — with smarter solutions, leaner processes, and a team that’s been inside the building for years.

Strong systems. No nonsense.
Cyber compliance solutions for defense contractors
and fast digital transformation for DoD teams.
CMMC Compliance
Move to CMMC Space — a compliant environment built for CUI. Faster, simpler, cheaper.
CMMC Assessment
Schedule your CMMC assessment with our authorized C3PAO team.
DoD Digital Transformation
Rethink your processes, decisions, and outcomes through technology.

Say hello to CMMC Space
In 2023, we set out to solve our own problem — building a CMMC solution that was affordable, easy to maintain, and wouldn’t disrupt the parts of a business that don’t touch CUI. Now, we’ve made it available for other businesses.
Turnkey Compliance
Get everything you need to become assessment-ready, including a compliant Google Workspace, access to a virtualized environment, and complete documentation — starting at just $199/user/month.
Ready When You Are
Clear direction. Ground truth. And a path to CMMC compliance that doesn’t derail your business.
Trusted where failure is not an option.








From the front line to the firewall.
Founded by Army combat veterans, our Austin-based team specializes in fast, down-to-earth transformation for government teams and CMMC readiness for small and mid-sized defense contractors.
FAQs
What is CMMC compliance?
The Cybersecurity Maturity Model Certification (CMMC) is the Department of Defense’s (DoD) framework for ensuring contractors safeguard sensitive federal information. CMMC compliance means your organization has the policies, practices, and technology in place to protect Controlled Unclassified Information (CUI) and Federal Contract Information (FCI) at the level required for your contracts. CMMC compliance at Level 2 typically requires a third-party assessment by a C3PAO.
When will CMMC be required?
CMMC requirements will begin appearing in contracts and full implementation will be phased in over the next few years.
Is there a CMMC checklist?
Yes, there are 320 assessment objectives or rules in NIST 800-171a (Revision 2) for Level 2 that can be used as a checklist for CMMC compliance. They cover the basics of having a secure infrastructure, like who can access data, how it’s stored, how it’s shared, and how you protect systems from hackers. Think of them as a detailed checklist of good security habits (some simple, some more advanced) that prove your business can be trusted with federal work. The checklist can help you track progress and stay audit-ready ahead of your third-party assessment by a C3PAO.
What does a C3PAO do?
A Certified Third-Party Assessor Organization (C3PAO) is an independent entity authorized by the Cyber AB to conduct official CMMC certification assessments. If your company requires Level 2 certification, a C3PAO will evaluate your environment, verify compliance with required controls, and issue the certification needed for DoD contracting. ATX Defense is an Authorized C3PAO.
How much does CMMC cost?
Costs vary widely depending on your size, existing cybersecurity maturity, and the level of certification required. Expenses can include technology upgrades, policy development, staff training, consulting support, and the C3PAO assessment fee. For small and mid-sized businesses, a ready-built environment like CMMC Space offers a predictable, affordable way to achieve CMMC compliance.