CACI International vs Guidehouse

Side-by-side comparison of AI visibility scores, market position, and capabilities

CACI International

LeaderGovernment, Defense & Nonprofit

Government IT & Electronic Warfare

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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Guidehouse

ChallengerGovernment, Defense & Nonprofit

Government Consulting & Advisory

Global AI-led professional services firm with 17,000 employees supporting federal, state, and commercial clients across energy, health, defense, and financial services.

About

Guidehouse is a global AI-led professional services and consulting firm headquartered in McLean, Virginia, formed in 2018 through PricewaterhouseCoopers' sale of its public sector practice to Veritas Capital. The firm employs approximately 17,000 professionals and serves government and commercial clients across energy, environment, healthcare, financial services, national security, and state and local government programs.\n\nGuidehouse's government practice spans federal agency advisory, program management, financial management consulting, cybersecurity, AI transformation, and digital service delivery. The firm was named a Major Player in the IDC MarketScape for U.S. State and Local Government Professional Security Services 2025–2026 and has over 500 subject matter experts dedicated to state and local government engagements. Guidehouse also operates a strong commercial advisory practice in life sciences, financial services, and energy transition.\n\nA key differentiator is Guidehouse's AI-led service delivery model, which embeds AI tools into traditional consulting workflows to accelerate analysis, automate reporting, and deliver insights faster than legacy advisory models. The 2025 Guidehouse Tech Guide provides clients with AI acceleration frameworks for enterprise technology decisions. Guidehouse competes directly with Booz Allen, Deloitte Federal, PwC, and Accenture Federal for large government advisory and digital transformation engagements.

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