Who Boeing buys from and sells to
Builds commercial jets (737, 787, 777X), military aircraft and space systems; earns heavily on services.
Part of Commercial Aerospace and the Aftermarket spending
Buys from 6
- GE AerospaceGELEAP-1B (via CFM), GEnx and GE9X engines
- SafranSAFRYhalf of each LEAP-1B via CFM, plus landing gear and wiring
- RTXRTXCollins avionics, seats and actuation; Pratt military engines
- Howmet AerospaceHWMfasteners and structural castings
- TransDigmTDGproprietary components across the fleet
- Parker HannifinPHflight control, hydraulic and fuel systems
Sells to 4
- United AirlinesUAL737 MAX and 787 fleet, its largest order book
- Ryanair737 MAX for the European fleet
- AerCapAER737 MAX and 787 for lease
- US Department of Defensetankers, fighters, helicopters, space~35% of 2025 revenue under US gov contracts (FY2025 10-K)
Where the chain could break
- 737 MAX output is capped by the FAA; any quality finding stalls deliveries
- LEAP-1B is the only 737 MAX engine, from CFM (GE and Safran)
- Now owns Spirit AeroSystems (Dec 2025), so fuselage problems sit on its own books
Competes with
- AirbusEADSYthe other half of the large-jet duopoly
- Lockheed MartinLMTfighters and space
- EmbraerEMBJsmaller single-aisle jets
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.