Aerospace Manufacturing Companies in California

California has approximately 35,000 manufacturing establishments and 1,300,000 manufacturing employees. California is the largest manufacturing state by output, leading in aerospace, semiconductors, medical devices, and food processing across its diverse regional economies.

California is one of the leading states for aerospace manufacturing. The aerospace manufacturing industry encompasses companies that design and produce aircraft, spacecraft, satellites, missiles, and their components. This includes OEMs like Boeing and Lockheed Martin, as well as thousands of Tier 1 through Tier 3 suppliers that machine, fabricate, and assemble critical components.

Aircraft OEMs: Companies like Boeing, Lockheed Martin, and Gulfstream that design and assemble complete aircraft and major structures.

Aerostructure Suppliers: Tier 1 companies like Spirit AeroSystems and GKN Aerospace that produce fuselages, wings, and major structural assemblies.

Engine Component Manufacturers: Companies machining and forging turbine blades, discs, and casings for jet engine programs.

Avionics & Systems Integrators: Manufacturers of flight control systems, navigation equipment, and electronic warfare systems.

MRO Providers: Maintenance, repair, and overhaul facilities that service commercial and military aircraft fleets.

Major industrial centers in California include Los Angeles, San Diego, San Jose, San Francisco, Fresno, Irvine, and Long Beach. These cities have concentrations of manufacturers across sectors including semiconductor manufacturing, aerospace manufacturing, and medical device manufacturing.