CACI International, Inc. operates as holding company, which engages in the provision of information solutions and services in support of national security missions and government transformation for intelligence, defense, and federal civilian customers. The company is headquartered in Reston, Virginia and currently employs 25,000 full-time employees. The company went IPO on 2002-08-16. The company is a provider of expertise and differentiated technology to customers in support of national security in the intelligence, defense, and federal civilian sectors. Its segments include Domestic Operations and International Operations. The Domestic Operations segment provides expertise and technology to U.S. federal government agencies. The International Operations segment provides expertise and technology to international government and commercial customers. The company provides a diverse mix of IT services and proprietary data and software products, serving commercial and government customers throughout the United Kingdom, continental Europe and around the world. Its software offerings consist of signals intelligence (SIGINT), electronic warfare (EW), and intelligence, surveillance, and reconnaissance (ISR), across multiple domains, platforms, and customer sets.