The C4ISR systems market was estimated at USD 120 billion in 2021 and is likely to grow at a CAGR of 4.14% during 2022-2028 to reach USD 159.89 billion in 2028. What are C4ISR Systems? Command, Control, Communications, Computers, Intelligence, Surveillance, and Reconnaissance (C4ISR) Systems are a group of integrated military technologies that enable commanders to gather and process information, communicate with various units, and make informed decisions during various operations. C4ISR systems improve situational awareness, and resource coordination, ultimately boosting the overall effectiveness and efficiency of military operations.