Atomus

What Atomus does

Atomus Corporation is a privately held, San Francisco-based cybersecurity company founded in 2019 that provides managed security services exclusively to the US Defense Industrial Base (DIB). The company addresses the complex regulatory burden facing small and medium-sized aerospace and defense contractors that must comply with NIST 800-171, DFARS 7012/7021, ITAR, and CMMC requirements, often under deadline pressure from prime contractors such as General Dynamics, Lockheed Martin, and Boeing. Atomus was originally incubated as part of a Department of Defense initiative and counts the US Air Force, Space Force, Navy, and Marine Corps among its references.

Atomus's core offering is the Atomus Aegis platform, a managed security service provider (MSSP) solution that automates up to 80% of NIST 800-171 controls and auto-generates a 300+ page system security plan plus supporting artifacts. The platform runs on a FedRAMP Moderate authorized technology stack of 30-40 FIPS 140-2 validated, ITAR-compliant products and can be deployed to endpoints, servers, or cloud environments in approximately 30 minutes. Atomus Aegis achieved CMMC Level 2 certification with a perfect 110/110 score via a C3PAO third-party assessment in April 2025. The product line is complemented by Atomus Atlas (a cloud-hosted virtual desktop environment for fast Phase 1 compliance), the Atomus Compliance Portal (centralized SPRS submission tracking, automated quarterly CMMC reviews, SSP management, and audit evidence locking), and the Hybrid Enclave 'Crawl/Walk/Run' phased approach that allows customers to expand compliance scope without re-audit.

Atomus monetizes via custom-priced annual subscriptions, selling primarily through a consultative, direct enterprise sales motion targeting SMB defense contractors under 300 employees, with demo booking via HubSpot as the primary conversion event. The company does not publicly disclose pricing or revenue. It is capital-efficient, having raised only a $1.45M seed round in June 2022 from CRV (lead), Human Capital (lead), Basecase Capital, and Stage 2 Capital, and has scaled to 100+ customers across aerospace and defense, manufacturing, construction, SBIR, and regulated research segments with a small team of 11-50 employees.

Name

Atomus

Legal name

Atomus Corporation

Website

https://atomuscyber.com

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

Atomus is a San Francisco-based MSSP that automates NIST 800-171, DFARS, and CMMC cybersecurity compliance for small and mid-sized US aerospace and defense contractors via its Aegis platform, Atlas VDI, and Compliance Portal.

Ownership category

akta.pro rank

Product category

Defense Cybersecurity Compliance Software

NAICS

Computer Systems Design and Related Services (54151)

SIC

Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Managed Security Services (MSSP) & 24/7 SOC Operations (BPAKAHAA)

Keywords

• CMMC compliance services
• NIST 800-171 compliance
• Defense cybersecurity platform
• Managed security services
• DFARS compliance automation

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations, Infrastructure

Revenue model

1. Managed Security Services: Subscription-based managed security service providing compliance automation and human expert support for NIST 800-171, DFARS 7012, and CMMC requirements. Includes software platform access, monitoring, documentation, and expert guidance.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Atomus is a managed security service provider (MSSP) that automates NIST 800-171, DFARS 7012, and CMMC compliance for aerospace and defense contractors. The Atomus Aegis platform implements, monitors, maintains, and documents cybersecurity controls across endpoints, servers, and cloud environments, automating up to 80% of NIST 800-171 controls and generating 300+ page system security plans, complemented by human expert support throughout the compliance journey.

Product overview

Atomus offers a unified compliance platform combining software automation with human expert support, primarily through two core products: Atomus Aegis (the main MSSP platform that automates NIST 800-171 controls and documentation) and Atomus Atlas (virtual desktop infrastructure for rapid compliance deployment). The platform is complemented by the Atomus Compliance Portal for ongoing SPRS management and quarterly CMMC reviews. The company specializes exclusively in aerospace and defense cybersecurity compliance, supporting NIST 800-171, DFARS 7012, DFARS 7021, ITAR, and CMMC Level 2 requirements. Atomus Aegis handles the core compliance automation while the Hybrid Enclave approach provides a phased migration path for contractors at different stages of compliance readiness.

Differentiator

Problem solved

Functional benefit

Brands

• Atomus Aegis: A managed security service platform that implements, monitors, maintains, and documents cybersecurity compliance for NIST 800-171, DFARS 7012, and CMMC requirements. Automates up to 80% of NIST 800-171 controls and provides human expert support.
• Atomus Atlas

Products and services

• Atomus Aegis Managed security service provider (MSSP) platform that automates implementation and documentation of NIST 800-171 technical controls. Deploys to any endpoint, server, or cloud environment holding defense data in 30 minutes, automates up to 80% of NIST 800-171 controls, generates 300+ page system security plans, and provides human expert support for CMMC compliance. Targets defense contractors and DoD suppliers.
• Atomus Atlas Secure cloud-hosted virtual desktop environment (VDI) used in Phase 1 (Crawl) of the Hybrid Enclave compliance strategy. Enables defense contractors to achieve a passing SPRS score quickly by keeping CMMC scope contained entirely within the cloud before expanding to physical devices.
• Atomus Compliance Portal

Quantifiable outcome

• Automates up to 80% of NIST 800-171 controls for customers
• +6 more outcomes

Named customers19 records

Segments6 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration15 records

Feature5 records

Scale indicators9 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Leidos: Leidos is a large defense and IT services prime with a dedicated cybersecurity practice serving DoD. Provides compliance, monitoring, and managed security for defense customers, overlapping Atomus's buyer base but at enterprise scale.
• Coalfire: Coalfire is a cybersecurity advisory and assessment firm specializing in FedRAMP, CMMC, and NIST compliance. Overlaps with Atomus's compliance-automation and audit-readiness offering but serves a broader enterprise/commercial mix.
• Telos Corporation: Telos is a publicly traded provider of cybersecurity, compliance, and enterprise IT solutions for the federal government and defense customers. Competes in CMMC compliance services and broader defense cybersecurity, but as part of a much wider portfolio of federal offerings.
• Booz Allen Hamilton: Booz Allen Hamilton is a major federal consulting and cybersecurity firm serving DoD primes and large contractors. While it provides CMMC advisory and managed services, it operates at a much larger scale and across many adjacent federal cyber programs.

Direct peers

• Summit 7 Systems: Summit 7 is a direct competitor to Atomus, providing managed cybersecurity and CMMC/NIST 800-171 compliance services exclusively to the Defense Industrial Base. Same target vertical, same MSSP-plus-platform model, and same compliance frameworks, making it the closest head-to-head rival.
• CyberSheath Services International: CyberSheath is a managed security services provider focused on CMMC and NIST 800-171 compliance for defense contractors. Overlapping customer base of DIB subcontractors, similar platform-plus-expert offering, and similar regulatory specialization as Atomus.
• Kieri Solutions: Kieri Solutions delivers CMMC Level 2 compliance and managed IT services specifically to small and mid-sized defense contractors. Highly comparable niche focus, SMB DIB customer segment, and similar subscription-style MSSP delivery model.
• Hyper Vigilance: Hyper Vigilance is a cybersecurity and CMMC compliance provider serving small defense contractors with managed security services. Highly comparable niche focus, SMB DIB target market, and similar compliance-first positioning as Atomus.

Emerging players

• RegScale: RegScale is a compliance automation platform that helps organizations manage NIST, CMMC, FedRAMP, and other frameworks. Overlaps with Atomus Aegis on the software-automation layer of CMMC/NIST 800-171 evidence collection and SSP management.
• PreVeil: PreVeil provides end-to-end CMMC and NIST 800-171 compliance for defense contractors, combining encrypted email/file sharing with compliance automation. Competes for the same DIB SMB customers and overlaps with Atomus on FedRAMP-authorized technology stack positioning.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds1 record

Investors4 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Atomus