Rebellion Defense vs CACI International
Side-by-side comparison of AI visibility scores, market position, and capabilities
AI-native defense software startup building autonomous mission platforms for the U.S. military and allies. Raised $224M+ total; $1B valuation at Series B in 2021.
About
Rebellion Defense is a Washington, D.C.-based AI and machine learning software company founded in 2019 by former U.S. government officials and defense tech engineers. The company builds mission-focused AI products for national security customers, with a product suite spanning Iris (predictive threat analytics), SECURE (cyber vulnerability assessment), Dispatch (autonomous mission planning), and Nova (defense analysis and decision support).\n\nRebellion's SensorOS platform provides defense customers with a fused operational picture of the threat environment, automated orchestration across distributed hardware and software, and AI-driven decision support for warfighters. Iris is designated an awardable vendor on the DoD's Tradewinds Solutions Marketplace, enabling streamlined government acquisition. In April 2025 the company expanded a U.S. Navy contract for target recognition enhancement.\n\nWith 200–500 employees across offices in Washington D.C., Seattle, and London, Rebellion represents a generation of defense tech startups aiming to bring Silicon Valley engineering velocity to national security missions. The company is positioned as a software-first counterpart to hardware-focused peers such as Anduril, targeting command, control, and intelligence automation at every echelon.
NYSE-listed federal IT and electronic warfare contractor. ~$6–7B revenue; 23,000+ employees. Fastest-growing major defense prime by pivoting into EW hardware and SIGINT systems.
About
CACI International is a defense and federal IT company founded in 1962 and headquartered in Reston, Virginia, trading on the NYSE under ticker CACI. With annual revenues in the $6–7 billion range and over 23,000 employees, CACI is recognized as one of the fastest-growing defense prime contractors, having successfully pivoted from pure IT services into high-margin electronic warfare (EW) and signals intelligence hardware.\n\nCACi's core portfolio spans intelligence solutions, SIGINT, electronic warfare systems, C5ISR (Command, Control, Communications, Computers, Cyber, Intelligence, Surveillance, and Reconnaissance), cloud modernization, and enterprise IT. The company's move into EW hardware has differentiated it from peers and driven above-market growth, including wins on DoD programs requiring domestically produced EW systems. CACI has bolstered its hardware and spectrum capabilities through strategic acquisitions including LGS Innovations in 2018.\n\nCACi serves customers across the military branches, intelligence community, and DHS. The company is frequently named to Washington Technology's Top 100 Government Contractors list and has a strong competitive position in contested-environment warfare systems—a direct beneficiary of DoD's increased spending on multi-domain operations and spectrum warfare.
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