THE ONE 23 GROUP INC.

THE ONE 23 GROUP INC. specializes in delivering mission-critical Information System Security Officer (ISSO) services and custom computer programming solutions to federal agencies, with a sharp focus on securing and maintaining the confidentiality, integrity, and availability of sensitive IT systems. Their core expertise lies in implementing NIST SP 800-53 controls, conducting risk assessments, preparing System Security Plans, supporting ATO processes, and ensuring compliance with FISMA and FedRAMP requirements. The contractor provides hands-on cybersecurity support for federal information systems, including policy development, security control validation, continuous monitoring, and incident response coordination—often embedded within operational units to ensure real-time compliance and threat mitigation. Their technical proficiency extends to secure system architecture, configuration management, and automated compliance reporting tools tailored for high-risk government environments. The company maintains a dominant presence with the Department of Homeland Security, consistently supporting cybersecurity operations across its components, including the Office of Health Security and OCRSO. Their work for DHS centers on protecting critical infrastructure and health-related information systems through dedicated ISSO staffing and tailored security support services. They also deliver similar cybersecurity services to the Department of Defense, General Services Administration, Department of Transportation, and Department of Justice, demonstrating adaptability across diverse mission sets. The contractor’s primary market focus is in custom computer programming services (NAICS 541511), where they translate security requirements into functional software and automation tools that enforce compliance and streamline audit readiness. They also provide computer systems design services (NAICS 541512) and engineering support, positioning themselves as a niche provider of integrated cybersecurity and IT modernization solutions for federal clients. Headquartered in Herndon, Virginia, THE ONE 23 GROUP INC. operates as a small business under the 2L entity structure. While currently holding no formal government certifications, their deep institutional knowledge of federal cybersecurity frameworks and consistent performance within high-demand DHS programs establish a strong reputation for reliability and technical precision in the federal IT services market.