Who L3Harris buys from and sells to
Defence tech prime: tactical radios, sensors, missile-warning satellites, and rocket motors via Aerojet Rocketdyne.
Part of Defence and Rearmament spending
Sells to 5
- US Department of Defenseradios, EW, satellites, sensors~75% of FY2025 revenue from US government (FY2025 10-K)
- Lockheed MartinLMTsolid rocket motors for PAC-3 and GMLRS
- RTXRTXrocket motors for Standard Missile and Stinger
- NASARS-25 engines for SLS
- United Launch AllianceRL10 upper-stage engines
Where the chain could break
- Aerojet is one of two US large solid-rocket-motor makers; interceptor output waits on it
- About 75% of revenue from the US government, so budget timing drives orders
Competes with
- Northrop GrummanNOCsolid rocket motors and space sensors
- RTXRTXsensors and electronic warfare
- Andurilautonomous systems and new rocket-motor capacity
Mapped by hand from filings and company reporting, as of October 2026. It shows the relationships that matter most, not every contract: most are never disclosed, and agreements change.