CACI International Inc. is a leading American multinational professional services and information technology company headquartered in Reston, Virginia, with a global presence spanning the United States and Western Europe. Founded in 1962 as California Analysis Center, Inc., the company has evolved into a Fortune 500 firm serving critical branches of the U.S. federal government, including defense, homeland security, and intelligence sectors. CACI employs approximately 27,000 people worldwide and is recognized for its secure enterprise IT solutions, cybersecurity expertise, and digital transformation services tailored to national security missions.

The company delivers comprehensive IT and communications solutions through four core lines of business: systems integration, managed network services, document technology, and engineering services. Its portfolio includes advanced capabilities in information assurance, electronic warfare, C4ISR (Command, Control, Communications, Computers, Intelligence, Surveillance, and Reconnaissance), space systems, automated debt management, litigation support, software-defined cyber operations, and geo-demographic data analysis. CACI operates through two major segments: Domestic Operations, which serves U.S. federal agencies and commercial enterprises, and International Operations, which supports government and commercial customers in the United Kingdom, continental Europe, and beyond.

Under the leadership of CEO John M. Mengucci since 2017, CACI has strategically expanded its cybersecurity footprint and continues to be a key player in defense and intelligence contracting. The company is a member of the Russell 1000 and S&P MidCap 400 indices and is listed on the New York Stock Exchange (ticker: CACI). With a revenue of approximately $8.6 billion and a history of over six decades of contributions to national security, CACI remains fundamentally committed to addressing the nation’s most complex engineering and mission challenges with confidence and domain expertise.