SECURITY
Security engineered for mission assurance.
Stell holds an active IL5 ATO with the USSF, is CMMC Level 2 and SOC2 Type 2 certified, and is built on AWS GovCloud by a 100% US-person team. All AI inference runs in-boundary — your engineering data never leaves your environment or trains a third-party model.
SECURITY
Security engineered for mission assurance.
Stell holds an active IL5 ATO with the USSF, is CMMC Level 2 and SOC2 Type 2 certified, and is built on AWS GovCloud by a 100% US-person team. All AI inference runs in-boundary — your engineering data never leaves your environment or trains a third-party model.
SECURITY
Security engineered for mission assurance.
Stell holds an active IL5 ATO with the USSF, is CMMC Level 2 and SOC2 Type 2 certified, and is built on AWS GovCloud by a 100% US-person team. All AI inference runs in-boundary — your engineering data never leaves your environment or trains a third-party model.
TRUST & SECURITY
U.S.-based and secure by default
Stell implements a defense-in-depth approach to meet the most stringent security requirements. All data is processed and stored on U.S.-based infrastructure.
SOC 2 Type II
Audited controls for security, availability, and confidentiality.
CMMC L2 Certified
Full compliance with NIST 800-171 CUI protection requirements for defense contractors.
Active IL5 ATO
Authority to Operate under U.S. Space Force for impact level 5 workloads.
ITAR Compliant
All data stored on AWS GovCloud in accordance with International Traffic in Arms Regulations.
Secure Architecture
End-to-end encryption. In-boundary AI/ML processing
FedRAMP
Cloud security authorization for federal government use. Assessment in progress.
TRUST & SECURITY
U.S.-based and secure by default
Stell implements a defense-in-depth approach to meet the most stringent security requirements. All data is processed and stored on U.S.-based infrastructure.
SOC 2 Type II
Audited controls for security, availability, and confidentiality.
CMMC L2 Certified
Full compliance with NIST 800-171 CUI protection requirements for defense contractors.
Active IL5 ATO
Authority to Operate under U.S. Space Force for impact level 5 workloads.
ITAR Compliant
All data stored on AWS GovCloud in accordance with International Traffic in Arms Regulations.
Secure Architecture
End-to-end encryption. In-boundary AI/ML processing
FedRAMP
Cloud security authorization for federal government use. Assessment in progress.
CONTINUOUS PROTECTION
Secure by design at every layer
From network perimeter to AI inference -- everything runs inside Stell’s AWS GovCloud authorization boundary. No data leaves. No corners cut.
Identity & SSO
Secure authentication via Okta, Microsoft Entra, and Duo. Includes native CAC support for government and military personnel.
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.
AI Boundary
All AI runs entirely on AWS GovCloud. No external model calls - prompts and embeddings never leave the authorization boundary.
Infrastructure
100% AWS GovCloud (US). All customer data processed and stored within U.S. jurisdiction on dedicated infrastructure.
CONTINUOUS PROTECTION
Secure by design at every layer
From network perimeter to AI inference -- everything runs inside Stell’s AWS GovCloud authorization boundary. No data leaves. No corners cut.
Identity & SSO
Secure authentication via Okta, Microsoft Entra, and Duo. Includes native CAC support for government and military personnel.
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.
AI Boundary
All AI runs entirely on AWS GovCloud. No external model calls - prompts and embeddings never leave the authorization boundary.
Infrastructure
100% AWS GovCloud (US). All customer data processed and stored within U.S. jurisdiction on dedicated infrastructure.
CONTINUOUS PROTECTION
Secure by design at every layer
From network perimeter to AI inference -- everything runs inside Stell’s AWS GovCloud authorization boundary. No data leaves. No corners cut.
Identity & SSO
Secure authentication via Okta, Microsoft Entra, and Duo. Includes native CAC support for government and military personnel.
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.
AI Boundary
All AI runs entirely on AWS GovCloud. No external model calls - prompts and embeddings never leave the authorization boundary.
Infrastructure
100% AWS GovCloud (US). All customer data processed and stored within U.S. jurisdiction on dedicated infrastructure.
ARTICLES
Read more About Security at Stell
Read more About Security at Stell
BOOK A DEMO
Built to your security standard
Walk through Stell with our team - we'll cover architecture, controls, and how it fits inside your authorization boundary.
BOOK A DEMO
Built to your security standard
Walk through Stell with our team - we'll cover architecture, controls, and how it fits inside your authorization boundary.
BOOK A DEMO
Built to your security standard
Walk through Stell with our team - we'll cover architecture, controls, and how it fits inside your authorization boundary.