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What does Leidos do for the military?
Last updated: October 2026
Leidos of Reston, Virginia, is a defense-technology services giant — $8.7B in arms revenue in 2023 (SIPRI). It runs intelligence, surveillance and reconnaissance missions, hypersonics research, military health systems and C5ISR integration for the Pentagon and the US intelligence community, rather than building big platforms.
| Company | Leidos |
|---|---|
| Country | United States |
| Headquarters | Reston, Virginia |
| Arms revenue, 2023 | $8.7 billion (2023) |
- ISR mission services
- Hypersonics research
- Military health IT systems
- C5ISR integration
- U.S. Department of Defense
- U.S. intelligence community
Sources2 sources
SIPRI Top 100 2023 (Dec 2024); Company public reporting
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