SAIC is a pure-play IT services and solutions provider to the U.S. government, primarily the Department of Defense (DoD), intelligence agencies, and federal civilian agencies. SAIC describes itself as a "mission integrator" — it brings together commercial technology, cleared personnel, and government-specific expertise to help agencies design, build, integrate, modernize, and maintain IT infrastructure and mission-critical systems. Work spans cloud migration, cybersecurity, AI and data integration for classified networks, digital engineering, and weapon and ground vehicle sustainment. Nearly all revenue comes from U.S. government contracts, with the DoD accounting for roughly 52% of revenue and intelligence and civilian agencies accounting for roughly 46%. SAIC operates two segments: Defense and Intelligence (~78-80% of revenue) and Civilian (~20-22%). SAIC earns money by billing the government for labor, materials, and overhead across three contract types — cost-plus, time-and-materials, and firm-fixed-price. Cost-plus dominates the Defense segment and carries lower margins, while the Civilian segment is predominantly fixed-price and T&M, driving relatively higher margins. SAIC has been deliberately pulling back from low-margin commoditized enterprise IT — most visibly by not re-bidding a large Air Force compute and storage contract — and redirecting resources toward differentiated mission IT where technical capability and cleared personnel matter more than price. SAIC deploys free cash flow primarily through share repurchases, with some tuck-in M&A, including the recent acquisition of SilverEdge Government Solutions to add AI capabilities for intelligence community customers.