RSI Security is a compliance and cybersecurity provider serving organizations in highly regulated industries, notably defense contracting, in the United States. The company helps clients meet regulatory requirements and manage cybersecurity risk through a combination of advisory, compliance and security services. It describes itself as the nation's premier compliance and cybersecurity provider.
Its work spans a broad set of regulatory frameworks, including PCI DSS, CMMC, NIST, HITRUST, HIPAA, SOC 2, GDPR and CCPA. Services are organised into six lines: advisory and compliance programmes; managed cyber defense operations; security infrastructure design and implementation; cybersecurity risk assessments; resource augmentation to supplement client security and compliance teams; and C3PAO assessment services for the Cyber-AB CMMC certification programme.
The technical remit is hands-on, covering compliance management, cybersecurity risk management, risk assessments, cyber defense operations and security infrastructure. The team includes published authors, open-source developers, industry researchers and conference presenters, and the company states an emphasis on combining current knowledge with practical experience. Its stated mission is to simplify compliance without compromising security.





