The aerospace manufacturing industry in California is a dynamic, progressive sector contributing immensely to technological advancements and innovations. Companies in this industry, such as SpaceX and The Aerospace Corporation, manufacture spacecrafts, advanced rockets, provide a range of services to support space missions, and even offer high-quality aircraft parts. These firms are driving global progress in exploring outer space, contributing to research and offering innovative applications with a vision for the future. There's a focus on sustainability, efficiency, and performance to meet the demands of the modern world. The industry's growth trajectory implies a potential for further dramatic technology developments and exploration ventures.


Top 23 aerospace manufacturing companies in California

1. SpaceX

  • Website: spacex.com
  • Headquarters: Hawthorne, California, United States
  • Founded: 2002
  • Headcount: 1001-5000
  • Latest funding type: Private Equity
  • LinkedIn

SpaceX is a private aerospace manufacturer and space transportation company. It offers advanced rockets and spacecrafts for various missions.


2. The Aerospace Corporation

  • Website: aerospace.org
  • Headquarters: El Segundo, California, United States
  • Founded: 1960
  • Headcount: 1001-5000
  • LinkedIn

The Aerospace Corporation is a leading organization in the aerospace industry, specializing in delivering solutions for space and advancing technological advancements. They offer a range of services and expertise to support space missions and research.


3. Proponent

  • Website: proponent.com
  • Headquarters: Brea, California, United States
  • Founded: 1946
  • Headcount: 501-1000
  • LinkedIn

Proponent is a company that specializes in providing high-quality aircraft parts and solutions to customers worldwide. They offer a broad selection of interior, engine, airframe, and cockpit products and services. With a focus on customer satisfaction, Proponent ensures reliable on-time performance and efficient inventory management.


4. Cadence Aerospace

  • Website: cadenceaerospace.com
  • Headquarters: Newport Beach, California, United States
  • Founded: 2010
  • Headcount: 1001-5000
  • Latest funding type: Acquired
  • LinkedIn

Cadence Aerospace is an aerospace and defense industry supplier that offers components, subassemblies, assemblies, and repair and overhaul services for leading manufacturers of aircraft, aerostructures, aeroequipment, and defense platforms.


5. CIRCOR Aerospace & Defense

CIRCOR Aerospace is a fast-growing company known for its ability to provide highly engineered technology, service and system solutions to the global aerospace industry.


6. Arrowhead Products

Arrowhead Products is a market leader in aerospace ducting systems and rocket propulsion lines. With decades of experience, they specialize in high pressure metallic ducting systems and components. Their state-of-the-art repair and overhaul facility provides extensive capabilities and reduced turnaround time. They offer creative engineering solutions and unmatched product quality for commercial aviation, defense, and space products.


7. Senior Aerospace Ketema

  • Website: saketema.com
  • Headquarters: El Cajon, California, United States
  • Founded: 1953
  • Headcount: 201-500
  • Latest funding type: Acquired
  • LinkedIn

Senior Aerospace Ketema is a leading provider of components and precision integrated manufacturing for aircraft, turbine engines, and various applications in space, marine, and ground-based industries.


8. Crissair Inc

  • Website: crissair.com
  • Headquarters: Valencia, California, United States
  • Founded: 1954
  • Headcount: 201-500
  • Latest funding type: Acquired
  • LinkedIn

Crissair, Inc. is a manufacturer of precision components for the aerospace industry. With over 65 years of experience, they specialize in designing, developing, and manufacturing high-quality hydraulic, fuel, and pneumatic system components. Their state-of-the-art facility in Valencia, CA is AS9100C and ISO 9001 certified, ensuring uncompromising quality in every process. Crissair's commitment to customer satisfaction and industry expertise has made them a trusted partner for major airframe manufacturers and subcontractors worldwide.


9. Fluid Components International

Fluid Components International (FCI) is a company that specializes in the production of flow sensors, temperature sensors, liquid level sensors, and pressure sensors for aircraft manufacturers. They provide high-quality sensor systems that meet the exacting specifications of the aerospace industry.


10. MS Aerospace

MS Aerospace is a leading independent aerospace fastener manufacturer. They specialize in manufacturing precision fasteners for the commercial aviation industry. With a focus on high strength, close tolerance, and high temperature applications, their fasteners are trusted by leading OEMs for critical fastener applications. Their commitment to customer service and their ability to deliver reliable products has driven their remarkable growth and success. They offer a wide range of aerospace bolts, studs, pins, nuts, barrel nuts, and screws, produced in various aerospace materials and configurations.


11. Morton Manufacturing

Morton Manufacturing is a leading supplier of nickel Alloy bolts for gas turbine aircraft engines and aero derivative gas turbine engines for industrial use worldwide. They have a dedicated staff of office personnel, skilled machinists, and equipment operators known for their craftsmanship and attention to detail.


12. Avantus Aerospace

  • Website: avantusaerospace.com
  • Headquarters: Valencia, California, United States
  • Founded: 2011
  • Headcount: 501-1000
  • Latest funding type: Acquired
  • LinkedIn

♦ Avantus Aerospace is a group of aerospace manufacturing companies with locations in Europe, North America & Mexico ♦Delivering a wide range of C-class and specialty machined components – fasteners, brackets, shims, detail assemblies and clips ♦ As well as an extensive range of composite and metal bond structures. ♦Our family of companies includes Attewell, Lamsco West, Bolsan Inc, Fastener Technology Corp. (FTC), Pillar Seals & Gaskets (PSG), Performance Plastics (PPI), Angeles Composites (ACTI), and SDM Composites. ♦Divisions include five manufacturing facilities in the US, three in Europe and one in Mexico. ♦The group serves a wide variety of aerospace customers in the civil, military and aftermarket sectors. ♦ Includes Boeing, Airbus, Spirit AeroSystems, Lockheed Martin, Northrop Grumman, BAE Systems, Mitsubishi, HondaJet, Collins Aerospace, Bombardier and De Havilland. ♦ Avantus Aeropace is owned by London based Inflexion Private Equity and Auctus Industries. ♦ Management headquarters are located in Santa Clarita (CA).


13. Agse

  • Website: agsecorp.com
  • Headquarters: Santa Fe Springs, California, United States
  • Founded: 1973
  • Headcount: 201-500
  • LinkedIn

AGSE is a global leader in the original design and manufacture of innovative aerospace ground support equipment and engine tooling for nearly 50 years.


14. FMI Aerostructures (Forrest Machining)

FMI Aerostructures is a trusted supply chain partner in the aerospace and defense industry, with 44 years of experience. They specialize in manufacturing critical structural components and complex assemblies, offering a range of value-added services. Their state-of-the-art facility, with comprehensive manufacturing and assembly capabilities, ensures high-quality products. FMI Aerostructures serves key A&D customers such as Boeing, Lockheed Martin, and Northrop Grumman.


15. Allfast Fastening Systems

  • Website: trsaero.com
  • Headquarters: City Of Industry, California, United States
  • Headcount: 51-200
  • LinkedIn

TriMas Aerospace is a leading designer and manufacturer of aerospace specialty products. Composed of five businesses with over 230 years of experience, including Allfast Fastening Systems®, Monogram Aerospace Fasteners®, Mac Fasteners™, Martinic Engineering™, and RSA Engineered Products, they provide industry-leading products and services to the aerospace industry.


16. Mp Aero, LLC

  • Website: mpaero.com
  • Headquarters: Van Nuys, California, United States
  • Founded: 2013
  • Headcount: 51-200
  • LinkedIn

MP Aero is an aerospace manufacturing company specializing in the manufacturing, assembly, repair, and prototyping of aerospace parts and components. They offer services such as body panel repair, mechanical repair, structural air frame repair, custom tooling and fixturing, and superplastic forming. Their expertise lies in VIP aircraft interior support services and custom manufacturing solutions for the aerospace industry.


17. Brek Manufacturing Company

  • Website: brek.aero
  • Headquarters: Gardena, California, United States
  • Founded: 1980
  • Headcount: 51-200
  • LinkedIn

Brek Manufacturing specializes in the machining of complex structural components for the aerospace industry. They produce precision-machined and monolithic-designed parts for various commercial aircraft and military fighters.


18. PACMET AEROSPACE - USA, Malaysia, Thailand

PACMET Aerospace is a reliable and trusted precision sheet metal stamping and metal forming company specializing in manufacturing aircraft interior components for large commercial aircraft. With over 60 years of combined experience, we offer genuine material products such as elastomers for seals, gaskets, and cushioned clamps used in aircraft and spacecraft.


19. Hc Pacific

  • Website: hcpacific.com
  • Headquarters: Ontario, California, United States
  • Founded: 1971
  • Headcount: 51-200
  • LinkedIn

HC Pacific is a company that specializes in distributing aerospace products and providing supply chain optimization services for military and commercial platforms. They offer solutions that optimize availability, productivity, cost, and quality. With a dedicated team, they provide VMI OEM partner services and have a wide range of products and solutions for manufacturers.


20. Soderberg Manufacturing Co

Soderberg Manufacturing Company Inc. is a trusted provider of interior and exterior aircraft lighting fixtures and electronics. With over 70 years of experience, they have established strong relationships with top companies in the Military and Commercial Aircraft Industries. Their product line includes navigation lights, anti-collision lights, landing lights, and more. They offer a wide range of options such as Night Vision Goggle (NVG) compatibility and LED technology. All their products are designed and manufactured at their facility in Walnut, California.


21. Knisley Welding, Inc.

Knisley Welding, Inc. is a family-owned and operated company that has been in business since 1974. They specialize in manufacturing and repairing aircraft exhaust systems for owners, operators, and repair stations worldwide.


22. Hammerhead Aviation

Hammerhead Aviation specializes in designing and manufacturing composite parts for the aerospace industry. They offer comprehensive services ranging from concept evaluation to finishing, utilizing various manufacturing techniques and processes.


23. Pacific Sky Supply Inc

  • Website: pacsky.com
  • Headquarters: Sun Valley, California, United States
  • Founded: 1954
  • Headcount: 51-200
  • LinkedIn

Pacific Sky Supply is a manufacturer and repair station for aerospace replacement parts. They offer an extensive list of products, including turbine and compressor vanes, CNC cell components, and custom coatings.


Want to find more aerospace manufacturing companies?


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...and a lot more!