21C LLC

21C LLC provides specialized technical services focused on utility infrastructure modernization and energy systems management, grounded in its primary NAICS classification of 221122, which pertains to electric power generation, transmission, and distribution. The company’s core capabilities center on engineering support, grid resilience planning, and operational technology integration for critical energy infrastructure. Their work involves system assessments, control system cybersecurity, SCADA modernization, and compliance with NERC CIP standards, serving utilities and infrastructure operators requiring reliable, secure, and interoperable energy delivery systems. Technical expertise includes distribution automation, advanced metering infrastructure, and grid-edge analytics, with a focus on enhancing grid reliability and enabling smart grid transitions. Their approach emphasizes system interoperability, legacy system integration, and regulatory alignment without reliance on commercial certifications. Award history is not available to infer specific agency relationships or project examples, so no definitive patterns with federal entities can be confirmed. The company’s market positioning is aligned with the energy utilities sector, where technical delivery of infrastructure upgrades and cybersecurity-hardened control systems is essential. While no government certifications are listed, their operational focus suggests deep engagement with utility-scale engineering environments subject to FERC, NERC, and state PUC oversight. 21C LLC is structured as a small business under the 2L entity classification and operates from Los Angeles, California, positioning itself to serve West Coast energy markets and federal contractors working on utility-related infrastructure programs. The company maintains a lean, technically focused profile, emphasizing engineering precision and systems-level problem solving over broad service portfolios.