CACI International is a national security contractor that provides specialized expertise, technology solutions, and skilled personnel to intelligence, defense, and federal civilian agencies in the United States and internationally. The company serves customers primarily through seven domestic market areas—command and control systems, cybersecurity, digital modernization, enterprise IT infrastructure, mission engineering, space capabilities, and electromagnetic spectrum operations—as well as through international subsidiaries offering IT services and software products. CACI generates revenue through competitive contracting mechanisms including fixed-price, cost-plus, and time-and-materials arrangements, with the majority of revenue concentrated in the top ten contracts and derived from evolving national security needs and demand for advanced technologies.