California is home to a vibrant aircraft manufacturing industry, essential for designing and producing aircraft ranging from small recreational planes to advanced military drones. This sector includes startups focused on electric and hybrid technology, established companies maintaining traditional aircraft, and firms developing cutting-edge regulations for unmanned aerial vehicles. While sustainable aviation is gathering momentum, many companies are also investing in advanced materials and manufacturing techniques. The future points to innovations driven by environmental considerations, making it an exciting and pivotal space to watch within the aerospace realm.


The featured companies vary in size and specializations, spanning from small startups to large manufacturers in California. Established between 1948 and 2020, they focus on producing aircraft, propulsion systems, and aircraft components. Some companies, like ICON Aircraft, innovate in light-sport vehicles, while others, such as General Atomics, excel with military UAVs. Collectively, these firms contribute significantly to the aviation landscape through engineering expertise and a forward-thinking approach in aeronautics.


Keep reading to discover the top aircraft manufacturing companies in California.


Top 19 Aircraft Manufacturing Companies in California


1. ICON Aircraft

  • Website: iconaircraft.com
  • Ownership type: Venture Capital
  • Headquarters: Vacaville, California, United States (USA)
  • Employee distribution: United States (USA) 53%, Mexico 47%
  • Latest funding: $20.0M, March 2019
  • Founded year: 2006
  • Headcount: 201-500
  • LinkedIn: icon-aircraft

ICON Aircraft, founded in 2006 and based in Vacaville, California, is an aircraft manufacturer that specializes in the design and production of the ICON A5, an innovative amphibious light-sport aircraft. The company aims to make flying enjoyable and accessible, particularly for recreational pilots and aviation enthusiasts. ICON Aircraft not only manufactures the A5 but also offers flight training services, ensuring that both novice and experienced pilots can maximize their flying experience. The company has received significant venture capital funding, with a reported amount of $20 million as of March 2019, which supports its operations and growth in the aviation industry. With a focus on safety and user-friendly design, ICON Aircraft is actively involved in promoting recreational aviation and expanding its market reach.


2. Karem Aircraft

  • Website: karemaircraft.com
  • Ownership type: Private
  • Headquarters: Lake Forest, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2004
  • Headcount: 51-200
  • LinkedIn: karem-aircraft

Karem Aircraft, founded in 2004 by Abe Karem, is an aerospace manufacturer based in Lake Forest, California. The company focuses on the design and production of advanced fixed-wing and rotary-wing aircraft, including both manned and unmanned systems. Karem Aircraft is particularly recognized for its patented Optimum Speed Tiltrotor (OSTR) technology, which merges the speed and efficiency of fixed-wing aircraft with the hovering capabilities of helicopters. The company serves military organizations and is actively involved in several defense-related initiatives, such as the Joint Multi-Role Technology Demonstration program in collaboration with the U.S. Army. Karem has also contributed to DARPA's VTOL X-Plane program and various other Department of Defense projects. Their ongoing development efforts include the AeroTrain and AeroCommuter tiltrotors aimed at commercial passenger transport, showcasing their commitment to innovation in both military and civilian aviation.


3. ZeroAvia

  • Website: zeroavia.com
  • Ownership type: Private Equity
  • Headquarters: Hollister, California, United States (USA)
  • Employee distribution: United Kingdom (UK) 66%, United States (USA) 33%
  • Latest funding: Series C, $34.0M, September 2024
  • Founded year: 2017
  • Headcount: 501-1000
  • LinkedIn: zeroavia

ZeroAvia is an aircraft manufacturer based in Hollister, California, specializing in hydrogen-electric propulsion systems aimed at achieving zero-emission flight. Founded in 2017, the company has quickly established itself as a pioneer in sustainable aviation technology. ZeroAvia develops advanced engines designed for regional aircraft, catering to airlines and airports that seek to minimize their carbon footprint while optimizing operational costs. Their product lineup includes the ZA600, a hydrogen-electric engine for 10-20 seat aircraft, and the upcoming ZA2000, targeting larger regional turboprops. The company has received significant funding, including a recent $34 million in Series C financing, which underscores its growth potential and the increasing interest in green aviation solutions. With a workforce that is primarily based in the UK and the US, ZeroAvia is actively working to transform the aviation industry through innovative propulsion technologies and infrastructure for hydrogen fuel.


4. Ampaire

  • Website: ampaire.com
  • Ownership type: Venture Capital
  • Headquarters: Long Beach, California, United States (USA)
  • Employee distribution: United States (USA) 93%, United Kingdom (UK) 7%
  • Latest funding: Other (Grant), $9.0M, November 2022
  • Founded year: 2016
  • Headcount: 11-50
  • LinkedIn: ampaire

Ampaire Inc., founded in 2016 and based in Long Beach, California, is an aviation technology company that specializes in hybrid-electric and electric aircraft. The firm is dedicated to creating innovative solutions that aim to reduce emissions and operational costs for airlines. Their notable products include the Electric EEL, a testbed aircraft, and the Eco Caravan, which is designed for sustainable air travel. Ampaire's technology promises significant reductions in fuel consumption, maintenance costs, and noise pollution, making air travel more efficient and environmentally friendly. The company collaborates with various partners, including NASA and Mokulele Airlines, to validate and demonstrate the effectiveness of its technologies in practical scenarios. Ampaire has also received funding, including a recent grant of $9 million, which supports its ongoing research and development efforts in the electrification of aviation.


5. Structural Integrity Engineering

  • Website: sieinc.com
  • Ownership type: Private
  • Headquarters: Los Angeles, California, United States (USA)
  • Employee distribution: United States (USA) 87%, Spain 13%
  • Founded year: 1981
  • Headcount: 51-200
  • LinkedIn: structural-integrity-engineering

Structural Integrity Engineering, Inc. (SIE) is an engineering firm based in Chatsworth, California, with a history dating back to 1981. The company focuses on providing engineering, project development, and technical consulting services specifically tailored for the aerospace industry. SIE's expertise includes aircraft modifications, structural design, and certification processes for both commercial and military clients. They have a notable track record in damage tolerance analysis and have performed extensive structural certification work. SIE is recognized for its innovative solutions, such as the design and modification of flying test bed aircraft and cargo conversions. Their team includes FAA Designated Engineering Representatives, which allows them to approve critical engineering reports and drawings. With a workforce of around 50 professionals, SIE operates not only in the United States but also has a presence in Spain, reflecting their international reach in the aerospace sector.


6. JetZero

  • Website: jetzero.aero
  • Ownership type: Venture Capital
  • Headquarters: Long Beach, California, United States (USA)
  • Employee distribution: United States (USA) 99%, Other 1%
  • Latest funding: April 2025
  • Founded year: 2020
  • Headcount: 51-200
  • LinkedIn: jetzero

JetZero is an aviation technology company based in Long Beach, California, founded in 2020. The firm specializes in the development of ultra-efficient Blended Wing Body (BWB) aircraft, aiming to transform the aviation industry with sustainable solutions that significantly cut fuel consumption and emissions. JetZero's innovative designs cater to both commercial airlines and military organizations, addressing their operational and environmental objectives. The company was established by aviation pioneers who were instrumental in the original BWB concept, and its team includes experienced aerospace engineers and advisors from major manufacturers and airlines. JetZero is currently collaborating with the US Air Force and NASA, working towards a 2030 timeline for bringing its aircraft to market. This focus on advanced technology and sustainability positions JetZero as a noteworthy entity in the aircraft manufacturing sector.


7. Sierra Technical Services


Sierra Technical Services, Inc. (STS) is an aerospace engineering and manufacturing firm based in Tehachapi, California. Founded in 2006, the company specializes in the design and production of composite aircraft and components, catering to both government and commercial clients. STS offers a range of services including digital engineering, systems integration, and manufacturing of unmanned systems. Their facility at the Tehachapi Municipal Airport is equipped to handle various aerospace applications, from detailed parts to complex composite structures. STS has been involved in significant projects, such as the development of the Fifth Generation Aerial Target (5GAT) for the U.S. Air Force, showcasing their capabilities in rapid prototyping and advanced manufacturing techniques. The company employs a team of experienced aerospace engineers and technicians, ensuring high-quality outputs that meet stringent industry standards.


8. Aero Engineering & Manufacturing Co


Aero Engineering & Manufacturing Co, based in Santa Clarita, California, has been a key player in the aerospace and defense industries since its founding in 1948. The company specializes in manufacturing airframe components specifically for military aircraft, providing OEM production solutions, aftermarket MRO support, and inventory management services. They ensure the availability of critical parts for military organizations and OEMs, which is vital for maintaining operational readiness. Aero Engineering supports a range of military aircraft programs, including the C-130, P-3, F-16, C-5, and F-35, showcasing their capability to meet the needs of both legacy and current generation platforms. Their manufacturing processes include CNC machining, sheet metal fabrication, and mechanical assembly, all of which are essential for producing high-quality aerospace components. The company prides itself on its customer-centric approach and has built a reputation for reliability and expertise in the aerospace sector.


9. Robinson Helicopter Company

  • Website: robinsonheli.com
  • Ownership type: Private
  • Headquarters: Torrance, California, United States (USA)
  • Employee distribution: United States (USA) 98%, Brazil 2%
  • Founded year: 1973
  • Headcount: 1001-5000
  • LinkedIn: robinson-helicopter-company

Robinson Helicopter Company, based in Torrance, California, has been manufacturing helicopters since its inception in 1973. The company specializes in producing a range of helicopter models, including the R22, R44, and R66, which are popular among private pilots, flight schools, and organizations requiring dependable helicopter services. Robinson not only focuses on manufacturing but also emphasizes customer education and safety through various training courses for pilots and maintenance personnel. Their commitment to customer support is evident in their extensive maintenance resources and service offerings. With a workforce of around 380 employees, Robinson Helicopter Company continues to play a significant role in the helicopter manufacturing industry, ensuring that their products meet the needs of their customers while maintaining high safety standards.


10. General Atomics Aeronautical Systems


General Atomics Aeronautical Systems, Inc. (GA-ASI), founded in 1993 and based in Poway, California, is a military contractor that specializes in the design and manufacture of unmanned aerial vehicles (UAVs) and radar systems. The company is dedicated to providing advanced technology solutions for military organizations, focusing on surveillance and reconnaissance missions. GA-ASI's product lineup includes the well-known Predator series, which has set benchmarks in the industry with over 8 million flight hours. Their UAVs, such as the MQ-9B SkyGuardian and MQ-9A Reaper, are recognized for their reliability and versatility in various operational environments. In addition to aircraft, GA-ASI develops ground control stations, integrated intelligence systems, and multi-mission payloads, enhancing the capabilities of their aerial platforms. The company is committed to innovation and operational effectiveness, contributing significantly to national security efforts.


11. Scaled Composites, LLC

  • Website: scaled.com
  • Ownership type: Corporate
  • Headquarters: Mojave, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: July 2007
  • Founded year: 1982
  • Headcount: 201-500
  • LinkedIn: scaled-composites

Scaled Composites, LLC, based in Mojave, California, is an aerospace company that specializes in the design, development, and testing of experimental aircraft and vehicles. Founded in 1982 by Burt Rutan and his partners, the company has built a reputation for innovative engineering solutions and rapid prototyping services. Scaled Composites engages in all phases of aircraft development, from conceptual design to systems integration and extensive testing. Their portfolio includes notable projects like SpaceShipOne, which won the Ansari X Prize, and various experimental aircraft that push the boundaries of aerospace technology. With a workforce of around 231 employees, Scaled Composites operates entirely within the United States, focusing on delivering cost-effective development projects on a short timeline. Their commitment to hands-on problem-solving and continuous learning in the design and testing processes underscores their relevance in the aerospace industry.


12. NextGen Aeronautics

  • Website: nextgenaero.com
  • Ownership type: Private
  • Headquarters: Torrance, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2002
  • Headcount: 11-50
  • LinkedIn: nextgen-aeronautics

NextGen Aeronautics, founded in 2002 and based in Torrance, California, is an aerospace engineering firm that specializes in the design, fabrication, and testing of UAVs and aircraft. With a team of skilled engineers and technicians, the company has developed a reputation for providing innovative solutions tailored to both military and commercial clients. Their extensive portfolio includes over 200 completed projects, ranging from basic research to the development of complete flight and underwater vehicles. NextGen Aeronautics is known for its work with notable clients such as DARPA, the Air Force, and various major systems integrators. The firm is committed to quality and safety, holding certifications like ISO 9001:2015 and AS9100D, which reflect their adherence to industry standards. Their capabilities include advanced design and analysis, fabrication of unique prototypes, and extensive research in areas such as hypersonic flight and hybrid electric aircraft. This combination of expertise and experience positions NextGen Aeronautics as a significant player in the aerospace industry.


13. Maverick Aerospace, LLC

  • Website: mavaero.com
  • Ownership type: Private
  • Headquarters: Industry, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: Other (Grant), September 2024
  • Founded year: 2008
  • Headcount: 51-200
  • LinkedIn: mavaero-llc

Maverick Aerospace, LLC, based in City of Industry, California, is an aerospace manufacturer established in 2008. The company specializes in the production of flight hardware, ground support equipment, and tooling tailored for military and commercial applications. With a workforce of approximately 30 employees, Maverick Aerospace operates from a facility that spans nearly 80,000 square feet, equipped with advanced machining capabilities and a dedicated cleanroom for sensitive projects. Their product offerings include complex components for satellites, military aircraft, and space vehicles, showcasing their expertise in precision manufacturing. Maverick Aerospace is committed to maintaining high standards of quality, as evidenced by their certifications in AS9100D and ISO 9001:2015. This dedication to quality assurance ensures that their products meet rigorous engineering and contractual requirements, making them a reliable partner in the aerospace and defense sectors.


14. Empirical Systems Aerospace, Inc. (ESAero)

  • Website: esaero.com
  • Ownership type: Private
  • Headquarters: San Luis Obispo, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2003
  • Headcount: 51-200
  • LinkedIn: empirical-systems-aerospace-inc-

Empirical Systems Aerospace, Inc. (ESAero), founded in 2003 and based in San Luis Obispo, California, is a private aerospace engineering firm that specializes in electric aircraft technology and unmanned aircraft systems. With a workforce of approximately 106 employees, ESAero has carved out a niche in the aerospace industry by focusing on innovative solutions for military and defense organizations. Their product offerings include advanced unmanned aerial systems (UAS) and hydrogen fuel cells, which are designed to enhance surveillance and air mobility capabilities. ESAero is recognized for its engineering design, rapid prototyping, and testing services, all of which are supported by their AS9100 certified manufacturing processes. The company has also played a pivotal role in projects like NASA's X-57 Maxwell, showcasing their expertise in electric aircraft development. ESAero's commitment to research and development positions them as a forward-thinking entity in the aerospace sector.


15. Cadence Aerospace

  • Website: cadenceaerospace.com
  • Ownership type: Private Equity
  • Headquarters: Anaheim, California, United States (USA)
  • Employee distribution: United States (USA) 87%, Mexico 13%
  • Latest funding: November 2017
  • Founded year: 2010
  • Headcount: 1001-5000
  • LinkedIn: cadence-aerospace

Cadence Aerospace, also known as Verus Aerospace, is a manufacturing firm based in Anaheim, California, that specializes in the production and assembly of complex, mission-critical components for the aerospace and defense industries. Founded in 2010, the company has established itself as a key player in precision machining and assembly services, catering to OEMs and Tier 1 suppliers. With operations spanning over 500,000 square feet and equipped with advanced machining platforms, Cadence Aerospace focuses on high-quality parts for various aircraft and defense systems. Their expertise includes working with hard metals and aluminum, and they are involved in manufacturing components for both commercial and military aircraft, including advanced military jets and space vehicles. The company operates through multiple Centers of Excellence, emphasizing innovation and customer service, and maintains rigorous quality standards through various certifications. Cadence Aerospace's commitment to supporting the aerospace sector is evident in their extensive capabilities and the critical nature of the components they produce.


16. Frazier Aviation, Inc.

  • Website: frazieraviation.com
  • Ownership type: Venture Capital
  • Headquarters: San Fernando, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: February 2025
  • Founded year: 1953
  • Headcount: 11-50
  • LinkedIn: frazier-aviation-inc.

Frazier Aviation, Inc., based in San Fernando, California, has been a player in the aerospace sector since its founding in 1953. The company specializes in the maintenance, repair, and overhaul of military and commercial aircraft, showcasing a strong commitment to quality and precision. With a workforce of 26 employees, Frazier Aviation has built a reputation for excellence, serving prominent clients such as Lockheed Martin and the U.S. Government. Their capabilities include fabricating sheet metal and providing comprehensive manufacturing services, which are essential for various aircraft models, including the C130, P3, F16, and F15. Frazier Aviation is recognized as a Boeing Preferred Supplier, reflecting their adherence to stringent quality standards. Their extensive experience, coupled with a focus on customer satisfaction, positions them as a significant player in the aerospace manufacturing industry.


17. Skurka Aerospace

  • Website: skurka-aero.com
  • Ownership type: Corporate
  • Headquarters: Camarillo, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: January 2005
  • Founded year: 1950
  • Headcount: 51-200
  • LinkedIn: skurka-aerospace

Skurka Aerospace Inc. is a California-based manufacturer that has been active in the aerospace industry since 1950. The company specializes in producing high-quality aerospace components, including electric motors, starter generators, and transducers. Their products are utilized in a wide range of applications, from commercial transport jets and helicopters to military fighter aircraft and ground vehicles. Skurka Aerospace emphasizes engineering expertise and quality workmanship, which has earned them a solid reputation among their customers. They have a strong focus on innovation and custom solutions, catering to both commercial and military sectors. The company operates from a 70,000 square foot facility in Camarillo, California, and is certified to ISO 9001:2015 and AS9100D standards, ensuring adherence to rigorous quality management systems. Skurka Aerospace has built partnerships with notable clients, including major aircraft manufacturers and military organizations, further solidifying their role in the aerospace supply chain.


18. Integral Aerospace

  • Website: integralaerospace.com
  • Ownership type: Corporate
  • Headquarters: Santa Ana, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: August 2021
  • Founded year: 2017
  • Headcount: 51-200
  • LinkedIn: integralaerospace

Integral Aerospace, a subsidiary of PCX Aerosystems, is an aerospace manufacturer based in Santa Ana, California. Founded in 2017, the company specializes in precision machining and the production of flight-critical components tailored for military and space applications. Integral Aerospace plays a crucial role in the aerospace and defense sectors, providing essential parts and assemblies that meet rigorous safety and performance standards. Their operations include advanced manufacturing techniques and a strong commitment to quality, ensuring that they meet the demanding requirements of their clients. The company has been integrated into a broader network of facilities under PCX Aerosystems, enhancing its capabilities in producing complex assemblies and components for various aircraft platforms.


19. IKHANA Group, Inc

  • Website: ikhanagroup.com
  • Ownership type: Corporate
  • Headquarters: Murrieta, California, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: October 2020
  • Founded year: 2007
  • Headcount: 51-200
  • LinkedIn: ikhana-group-inc

IKHANA Group, Inc., founded in 2007 and based in Murrieta, California, specializes in aerospace engineering and aircraft maintenance. The company provides comprehensive design, build, and fly solutions, focusing on modifications and heavy maintenance for a variety of aircraft. IKHANA serves a range of clients, including regional airlines and special mission operators, who depend on their expertise to enhance aircraft performance and maintain compliance with aviation regulations. The company holds multiple certifications, including FAA, EASA, and Transport Canada approvals, which affirm its capability to operate in various aviation markets. IKHANA has developed a reputation for delivering tailored solutions, particularly for the DHC-6 Twin Otter, and is involved in innovative projects such as hybrid electric aircraft studies. Their engineering and certification services are critical for clients seeking to navigate the complexities of aircraft modifications and maintenance.



Aircraft Manufacturing Insights: Key Companies in California


CompanyHeadquarterSizeFoundedOwnership
ICON AircraftVacaville, California, United States (USA)201-5002006Venture Capital
Karem AircraftLake Forest, California, United States (USA)51-2002004Private
ZeroAviaHollister, California, United States (USA)501-10002017Private Equity
AmpaireLong Beach, California, United States (USA)11-502016Venture Capital
Structural Integrity EngineeringLos Angeles, California, United States (USA)51-2001981Private
JetZeroLong Beach, California, United States (USA)51-2002020Venture Capital
Sierra Technical ServicesTehachapi, California, United States (USA)51-2002006Corporate
Aero Engineering & Manufacturing CoSanta Clarita, California, United States (USA)11-501948Private
Robinson Helicopter CompanyTorrance, California, United States (USA)1001-50001973Private
General Atomics Aeronautical SystemsPoway, California, United States (USA)5001-100001993Private
Scaled Composites, LLCMojave, California, United States (USA)201-5001982Corporate
NextGen AeronauticsTorrance, California, United States (USA)11-502002Private
Maverick Aerospace, LLCIndustry, California, United States (USA)51-2002008Private
Empirical Systems Aerospace, Inc. (ESAero)San Luis Obispo, California, United States (USA)51-2002003Private
Cadence AerospaceAnaheim, California, United States (USA)1001-50002010Private Equity
Frazier Aviation, Inc.San Fernando, California, United States (USA)11-501953Venture Capital
Skurka AerospaceCamarillo, California, United States (USA)51-2001950Corporate
Integral AerospaceSanta Ana, California, United States (USA)51-2002017Corporate
IKHANA Group, IncMurrieta, California, United States (USA)51-2002007Corporate


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