CACI International, Inc, is a multinational professional services and information technology company headquartered in Arlington, Virginia, United States. CACI provides services to many branches of the federal government including defense, homeland security, intelligence and healthcare.CACI has over 16,300 employees in over 120 offices in the U.S. and Europe. CACI is consistently selected as a leading employer of veterans nationwide, and veterans make up nearly 25 percent of its workforce.