C3PAO and RPO
SSE Inc.
SSE Inc. is a C3PAO and RPO that lists managed services and assessments for defense companies. SSE Inc. states its headquarters as St. Louis, Missouri. Verify authorization on the Cyber AB Marketplace before you hire.
Firm states: As a Registered Practitioner Organization (RPO), helping other DoD contractors prepare for compliance. And now, as a C3PAO, authorized to perform Level 2 certification assessments.
SourceOct 16, 2026
Headquarters stated by the firm: St. Louis, Missouri. Source Oct 16, 2026
Services the firm lists
- Managed services
- Assessments
Industries the firm lists
- Defense
Verify authorization on the Cyber AB Marketplace
Authorization can change. Always verify on the Cyber AB Marketplace before you hire.