Spirit AeroSystems

Spirit AeroSystems designs and manufactures large, complex aerostructures - fuselages, wings, pylons, nacelles, struts, fairings and other structural components - using composite and metallic materials. Founded in 2005 as an independent business and expanded through acquisitions and new production facilities, the company became a wholly owned subsidiary of The Boeing Company on December 8, 2025. Its work is organised into three operating segments: Fuselage Systems, Propulsion Systems and Wing Systems.

The company supports both commercial and defense programs. Commercial and rotorary work spans Airbus programmes including the A220, A320, A350 and A380, and Boeing programmes including the 737, 747-8, 777X, 787, P-8A and KC-46A. Defense and military aviation structures are a substantial part of the portfolio, covering platforms such as the CH-53K King Stallion and the B-21 Raider, alongside business jet and regional aircraft programs.

Technical domains at Spirit AeroSystems include aerostructures design and manufacturing, composite materials, metallic structures, fuselage systems, propulsion systems, wing systems and defense aerospace structures. Manufacturing and engineering operations are spread across four geographic regions: North America, Europe, Asia and North Africa.

The industry verticals served are commercial aircraft, defense and military aviation, business jets, regional aircraft and aerospace manufacturing.