CASTLE GLOBAL, INC

CASTLE GLOBAL, INC. specializes in advanced research and development for critical government security applications, with demonstrated expertise in securing digital communication systems against sophisticated cyber threats. Their technical focus centers on engineering solutions to prevent digital injection attacks in video communication platforms, leveraging applied cryptography, protocol hardening, and secure software development lifecycles. The firm delivers high-integrity system design for mission-critical environments, combining applied physical and engineering sciences with real-world operational constraints. Their work reflects a deep understanding of threat modeling, input validation architectures, and secure media transmission protocols, positioning them as a niche provider for defense and homeland security R&D initiatives. The company has directly supported the Department of Homeland Security on SBIR Phase I initiatives focused on securing video infrastructure, indicating a relationship built around innovation in cybersecurity for federal operations. They have also delivered services to Investigations and Operations Support Dallas, suggesting engagement in law enforcement and intelligence-related technical support, likely involving secure data handling or analytical tooling. These engagements reflect a pattern of working with agencies requiring rapid prototyping and validated technical solutions under non-competitive award mechanisms. CASTLE GLOBAL operates primarily under NAICS 541715 for research and development in physical and engineering sciences, with secondary activity in 518210, which encompasses data processing and hosting services. Their market positioning is that of a specialized R&D contractor focused on applied cybersecurity engineering rather than broad IT services. They serve verticals requiring high-assurance systems, particularly in video integrity and secure communications. As a small business structured as a 2L entity based in San Francisco, CASTLE GLOBAL maintains a lean, technically focused operational model. The company holds no formal government certifications but leverages technical agility and subject-matter expertise to secure targeted R&D contracts. Their geographic presence in a major innovation hub supports access to engineering talent and federal research ecosystems.