CACI International Inc (CACI) is a holding company whose operations are conducted through subsidiaries primarily located in the United States and Europe. It is a provider of expertise and technology to enterprise and mission customers, supporting national security missions and government modernization/transformation in the intelligence, defense, and federal civilian sectors, both domestically and internationally. The Company operates through two segments: Domestic Operations and International Operations. The Domestic Operations segment provides expertise and technology primarily to the United States federal government agencies. The International Operations segment provides expertise and technology primarily to international government and commercial customers. It provides expertise and technology to its domestic customers in the various market areas, such as Digital Solutions; C4ISR, Cyber & Space; Engineering Services; Enterprise information technology, and Mission Support.