Security Engineered for Mission Assurance
Secure by Design. Trusted by Defense.
Stell’s priority is serving the US DoW and the American industrial base — with best-in-class cybersecurity. Experience the efficiency of advanced AI with the confidence of military-grade security, only with Stell.
Our Commitment to Customer Trust
Security is not just a feature of Stell’s solutions; it’s a priority in our culture. Continuous audits, governance, and proactive monitoring form the foundation of trust with our customers, to ensure that every update to our software strengthens – not compromises – your compliance posture.
Proven Compliance Across Defense-Grade Frameworks
SOC 2 Type II Compliance
Stell meets compliance with the SOC 2 trust service criteria for security, confidentiality, and availability. Stell received our first unqualified SOC 2 Type II report in 2024, and we are undergoing our next SOC 2 Type II audit for the 2025 control period.
This rigorous third-party certification confirms that Stell maintains the highest levels of data security, operational excellence, and continuous monitoring, validating our commitment to industry-leading security standards.
When you choose Stell, you're partnering with a platform that doesn't just promise security—we prove it.
CMMC / NIST SP 800-171 Compliance
Stell has implemented all 110 controls of the NIST 800-171 framework, enabling us to handle Controlled Unclassified Information (CUI) securely.
Stell is preparing for a CMMC Assessment in 2026, pending CMMC assessor availability following the recent implementation of the CMMC ruling.
We've built security into our DNA so you can focus on your mission.
ITAR-Controlled Data Handling
Stell helps you remain ITAR compliant by design. Stell’s secure environment supports ITAR-controlled workflows, ensuring that export-controlled technical data remains within U.S. jurisdiction and does not leave authorized boundaries.
Our team is 100% US persons, and the application is built on a US-based secure infrastructure: all customer data is stored on US servers. Stell’s code is proudly developed entirely within the United States.
FedRAMP / NIST 800-53 Alignment
Stell has received an Authority to Operate (ATO) with the USSF at IL5, and has a detailed SSP and POA&M available to share with customers. Stell’s infrastructure aligns with the FedRAMP High baseline, validated annually by a 3PAO.
Classified & Self-Hosted Deployments
Stell can provide a variety of options to deploy the application on request.
Stell has deployed to our customers’ own cloud environments. Case study available on request.
Secure by Design — Continuous Protection
Stell’s platform is built for privacy and security at every level:
Access Control: Role-based, granular permissions enforce least privilege and access to secure information.
Encryption: Advanced FIPS 140-2 validated encryption protects data in transit and at rest, with HSM for cryptographic key management.
Testing: Continuous vulnerability scanning, automated security testing, and annual penetration tests assess ongoing resilience.
Governance: Background-checked team members follow NIST 800-53/171-aligned incident response and change-control processes, with documented procedures for continuous compliance.
Secure AI in a Controlled Environment
Stell’s forward-thinking, secure culture safely brings AI into highly regulated programs within your security boundary. Stell’s AI runs entirely on AWS GovCloud with no external model calls, ensuring that all prompts and embeddings remain within the Stell authorization boundary. The same robust encryption, logging, and monitoring that protect your data stored with Stell also govern all AI features like our signature PDF-to-matrix parsing and automated risk summaries.
AI at Stell is never outsourced – it’s safeguarded and engineered by us. Every AI feature is built with Stell’s defense-grade controls and security, which ensures that innovation never comes at the cost of compliance or sovereignty.