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Company Dossier

Atomus (Atomus Corporation)

Atomus is a San Francisco-based cybersecurity compliance company that helps small and mid-sized US defense contractors meet mandatory Pentagon cybersecurity standards like CMMC, NIST 800-171, and DFARS 7012.

BattlePolicy Research · Updated 28 Jul 2026 · 4 min read
FILE · atomusOpen-source file · BattlePolicy ProStatus Private, venture-backed. Not a defense hardware/robotics company despite the Wellfound listing's defense-tech framing — it is a compliance/cybersecurity software vendor whose customers are defense contractors.Unverified
Atomus (Atomus Corporation)
Defense-industrial-base cybersecurity compliance / MSSP softwareUSPrivate, venture-backed. Not a defense hardware/robotics company despite the Wellfound listing's defense-tech framing — it is a compliance/cybersecurity software vendor whose customers are defense contractors.
Atomus is a San Francisco-based cybersecurity compliance company that helps small and mid-sized US defense contractors meet mandatory Pentagon cybersecurity standards like CMMC, NIST 800-171, and DFARS 7012.
Founded
2019
HQ
San Francisco, California, USA
Headcount
approx. 11-50per Wellfound, unverified
Total raised
approx. $850K-$1.45M seed/pre-seedfigures vary by tracker
Valuation
undisclosed
Stage
Seed

Background

Atomus was founded in 2019 by Joel Joseph and Kaushal Saraf, with the company's own materials stating it began as part of a Department of Defense initiative to research and develop cybersecurity technology for the DoD, before pivoting toward helping the broader defense-industrial base achieve compliance with federal cybersecurity mandates.

The company is a technology-driven managed security service provider (MSSP) purpose-built for aerospace and defense, offering both automated compliance software (its Atomus Compliance Portal, generating system security plans and tracking quarterly reviews) and human compliance-support services. As of mid-2025, Atomus announced it had achieved CMMC Level 2 certification with a perfect 110/110 score in its own third-party assessment, and the company says it works with more than 100 defense-industrial-base companies navigating the CMMC certification process.

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