Connecticut's aerospace manufacturing industry is a critical sector in the landscape of American aviation and defense. Here, companies engage in a wide range of manufacturing processes dedicated to producing flight-vital components, propulsion systems, and research innovations. This industry is not just about aircraft construction; it also focuses on safety enhancements and technological advancements. As demand rises for more fuel-efficient and sustainable solutions, aerospace manufacturing is evolving. The adaptation includes a shift towards composite materials and automation, aiming to improve production efficiency while addressing environmental concerns.


The list features 22 aerospace manufacturing companies headquartered in Connecticut. These range in size, from large corporate entities like Pratt & Whitney and Pioneer Aerospace Corporation to smaller specialized firms. Founded between 1925 and 2013, these companies emphasize precision engineering and production of aircraft components. Their diverse specializations cover technologies for both civil aviation and defense sectors, ensuring a robust presence in different market segments and catering to evolving industry demands.


Read on to explore the top aerospace manufacturing companies in Connecticut.


Top 22 Aerospace Manufacturing Companies in Connecticut


1. Pioneer Aerospace Corporation


Pioneer Aerospace Corporation, based in South Windsor, Connecticut, is a subsidiary of Safran, a prominent name in aerospace manufacturing. Founded in 1938, the company has a long-standing history in the industry. It specializes in aircraft propulsion systems, equipment, and defense solutions, catering to both commercial and military sectors. Pioneer Aerospace is committed to providing innovative technologies that improve safety and operational efficiency in air travel and defense operations. Recently, the company secured $2.2 million in funding, indicating ongoing investment in its capabilities and growth. This financial backing supports its mission to enhance its product offerings and maintain its competitive edge in the aerospace market.


2. Pratt & Whitney

  • Website: prattwhitney.com
  • Ownership type: Private
  • Headquarters: East Hartford, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 72%, Canada 6%, India 5%, Other 17%
  • Latest funding: Other (Grant), $395,000, March 2024
  • Founded year: 1925
  • Headcount: 10001+
  • LinkedIn: pratt-%26-whitney

Pratt & Whitney, based in East Hartford, Connecticut, is an aerospace manufacturer that specializes in the design, manufacture, and service of aircraft engines and auxiliary power units. Established in 1925, the company has built a reputation for innovation and reliability in the aerospace industry. Pratt & Whitney serves a wide array of customers, including commercial airlines and military organizations, providing high-performance engines that power a variety of aircraft. Their product offerings include the GTF engine, V2500 engine, and military engines like the F135, among others. The company also emphasizes sustainability, having tested engines on 100% sustainable aviation fuel. With over 27,000 employees, Pratt & Whitney is a significant contributor to the aerospace sector, continuously advancing engine technology and maintenance solutions to meet the evolving needs of the industry.


3. PCX Aerosystems

  • Website: pcxaero.com
  • Ownership type: Private
  • Headquarters: Newington, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1900
  • Headcount: 501-1000
  • LinkedIn: pcx-aerostructures

PCX Aerosystems, based in Newington, Connecticut, is an aerospace manufacturer with a rich history that began in 1900. The company specializes in precision machining and the production of flight-critical components for military and space applications. With a workforce of around 215 employees, PCX serves customers in the aerospace and defense sectors, providing high-quality assemblies and systems that adhere to rigorous industry standards. Their product offerings include mechanical assemblies, transmissions, gearboxes, and structural airframe components, among others. PCX has multiple locations across the United States, which allows them to maintain a robust manufacturing presence. The company has made significant strides in recent years through strategic acquisitions, expanding their capabilities in areas such as landing gear and composite manufacturing. This growth reflects their commitment to innovation and quality in meeting the evolving demands of the aerospace industry.


4. Aerospace Drive Systems, by Timken


Aerospace Drive Systems, by Timken, is a precision aerospace manufacturer based in Manchester, Connecticut. Founded in 1946, the company specializes in the machining and production of flight-critical components tailored for military and space applications. They serve a range of clients in the aerospace and defense sectors, providing high-quality mechanical assemblies and systems that adhere to rigorous industry standards. Their product offerings include complex gear systems, transmissions, and other essential components that are vital for the performance and safety of aerospace vehicles. Recently, Aerospace Drive Systems was acquired by PCX Aerosystems, which has expanded their capabilities and market reach, allowing them to better address the critical manufacturing needs of their clients. The company is committed to maintaining high standards of quality and innovation in their manufacturing processes, ensuring they remain a relevant player in the aerospace manufacturing industry.


5. United Technologies Research Center

  • Website: utc.com
  • Ownership type: Venture Capital
  • Headquarters: East Hartford, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 68%, India 12%, Ireland 10%, Other 9%
  • Latest funding: June 2019
  • Founded year: 1929
  • Headcount: 501-1000
  • LinkedIn: united-technologies-research-center

United Technologies Research Center (UTRC), founded in 1929 and based in East Hartford, Connecticut, is a prominent research and development organization within the aerospace sector. Specializing in aerospace systems and digital services, UTRC focuses on delivering advanced solutions that enhance the operational efficiency of aerospace manufacturers and suppliers. The company leverages innovative technologies and digital platforms to address the evolving needs of the aerospace industry. With a workforce that includes a significant presence in the United States and international locations, UTRC plays a vital role in driving technological advancements and supporting the aerospace manufacturing community.


6. Aero Gear

  • Website: aerogear.com
  • Ownership type: Private
  • Headquarters: Windsor, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1982
  • Headcount: 201-500
  • LinkedIn: aero-gear

Aero Gear, based in Windsor, Connecticut, is an aerospace manufacturer that has been operational since 1982. The company specializes in the design and production of high-quality gears and gearbox assemblies tailored for the aerospace industry. With a workforce of around 96 employees, Aero Gear emphasizes precision engineering and continuous improvement in its manufacturing processes. The company serves major engine manufacturers and Tier 1 suppliers, showcasing its integral role in the aerospace supply chain. Aero Gear operates from a modern, climate-controlled facility that spans 100,000 square feet, equipped with specialized machinery for various manufacturing processes, including low-pressure vacuum carburizing and precision grinding. Their commitment to quality is reflected in their certifications, including AS9100:D and ISO 9001:2015, which are essential for meeting the rigorous standards of the aerospace sector. Aero Gear has developed a reputation for excellence, consistently delivering complex assemblies and components that meet the demanding requirements of their customers.


7. Butler Aerospace & Defense

  • Website: butler.com
  • Ownership type: Corporate
  • Headquarters: Shelton, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 95%, India 5%
  • Latest funding: $85.0M, October 2016
  • Founded year: 1947
  • Headcount: 1001-5000
  • LinkedIn: butler-aerospace-%26-defense

Butler Aerospace & Defense, based in Shelton, Connecticut, is an engineering solutions provider that specializes in the aerospace and defense sectors. Founded in 1947, the company has built a reputation for delivering engineering, manufacturing, and aftermarket support services tailored to meet the complex needs of its clients. With a workforce of over 500 employees, Butler focuses on enhancing operational efficiency and technical expertise across various industries, including aerospace, defense, space, and commercial vehicles. Their service offerings include product development, structural design, quality management, and staffing solutions, all aimed at supporting the lifecycle of aerospace products. As a wholly owned subsidiary of HCL Technologies, Butler benefits from a robust technological foundation, enabling them to provide innovative solutions and maintain a competitive edge in the aerospace manufacturing sector.


8. Hanwha Aerospace USA

  • Website: hanwhaaerospaceusa.com
  • Ownership type: Private
  • Headquarters: Cheshire, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1977
  • Headcount: 501-1000
  • LinkedIn: hanwha-aerospace-usa

Hanwha Aerospace USA, founded in 1977 and based in Cheshire, Connecticut, is a private manufacturing company that specializes in aerospace and defense components. The company produces precision rotating and static components for aerospace engine applications, serving major players in the aerospace and defense industries. With a workforce of approximately 391 employees, Hanwha Aerospace USA operates multiple facilities across Connecticut, focusing on continuous improvement and lean manufacturing practices. Their commitment to quality and innovation is evident in their engineering capabilities and their recognition as a 'Best in Class' manufacturer of bladed rotors and disks for both commercial and military engine applications. The company has made significant investments in modernizing its facilities and processes, ensuring they remain competitive in a rapidly evolving market.


9. Cambridge Specialty Company, Inc.

  • Website: cambridgespecialty.com
  • Ownership type: Private
  • Headquarters: Berlin, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1952
  • Headcount: 51-200
  • LinkedIn: cambridge-specialty

Cambridge Specialty Company, Inc., based in Berlin, Connecticut, has been a player in the aerospace manufacturing sector since its inception in 1952. The company specializes in precision machining and assembly of complex components, particularly for the aerospace industry. They produce jet engine service tools and flight-critical parts, catering to both original equipment manufacturers (OEMs) and the Department of Defense. With a workforce of around 28 employees, Cambridge Specialty has built a reputation for high-quality production and timely delivery. Their capabilities include advanced CNC machining, multi-axis milling, and welding, all of which are essential for meeting the stringent requirements of aerospace applications. The company is also recognized for its commitment to quality, holding certifications such as AS9100D and ISO9001:2015, which reflect their dedication to maintaining rigorous industry standards. Over the years, Cambridge Specialty has supported numerous new product development initiatives and legacy programs, solidifying its role as a reliable supplier in the aerospace sector.


10. ACMT, Inc.


ACMT, Inc., based in Manchester, Connecticut, is an aerospace manufacturer that specializes in producing OEM components, hydroforming, composites, and MRO services tailored for the aviation industry. Since its inception in 1986, ACMT has catered to both commercial and military sectors, ensuring compliance with stringent industry standards. The company prides itself on delivering high-quality aerospace parts and engineering solutions, with a strong focus on customer service and innovation. ACMT's capabilities include advanced manufacturing techniques such as laser cutting, bonding, and complex assembly, which are essential for producing critical aircraft components. Their commitment to sustainability and community involvement further enhances their profile in the aerospace manufacturing landscape.


11. Numet LLC

  • Website: numet.net
  • Ownership type: Corporate
  • Headquarters: Orange, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: November 2019
  • Founded year: 1984
  • Headcount: 51-200
  • LinkedIn: numet-machining-techniques-inc.

Numet LLC, based in Orange, Connecticut, is an aerospace manufacturer that specializes in ultra-complex engine components tailored for military and commercial applications. Founded in 1984, the company has built a reputation for high-quality manufacturing and repair services, serving clients in both the aerospace and defense sectors. With a workforce of approximately 36 employees, Numet operates multiple facilities across the United States and Mexico, emphasizing continuous improvement and collaboration with customers. Their product offerings include a range of precision-engineered components such as blades, vanes, fuel control housings, and actuator housings, which are integral to various aircraft and military platforms. Numet's commitment to quality and innovation positions it as a significant player in the aerospace manufacturing industry.


12. AeroCision, LLC

  • Website: aerocision.com
  • Ownership type: Private Equity
  • Headquarters: Chester, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: April 2018
  • Founded year: 1958
  • Headcount: 51-200
  • LinkedIn: aerocision-llc

AeroCision, LLC, based in Chester, Connecticut, is a private equity-owned aerospace manufacturer that specializes in ultra-complex engine components. Founded in 1958, the company has built a reputation for precision-engineered parts and repair services tailored for military and commercial applications. AeroCision operates multiple facilities across the United States and Mexico, allowing them to effectively serve customers in the aerospace and defense sectors. Their product offerings include a wide range of components such as blades, vanes, fuel control housings, and actuator housings, which are integral to various aircraft and military platforms. The company is committed to high-quality manufacturing and continuous improvement, ensuring they meet the evolving needs of their clients in the aerospace industry.


13. HORST Engineering

  • Website: horstengineering.com
  • Ownership type: Family Owned
  • Headquarters: East Hartford, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1946
  • Headcount: 51-200
  • LinkedIn: horst-engineering

HORST Engineering, based in East Hartford, Connecticut, is a family-owned manufacturing company that has been operational since 1946. Specializing in aerospace components, they produce precision machined parts for both commercial and defense aircraft. Their product offerings include a wide range of critical hardware such as fasteners, bushings, fittings, and custom components, all crafted to meet the rigorous demands of the aerospace industry. The company prides itself on its advanced manufacturing capabilities, utilizing state-of-the-art CNC machining equipment to achieve exceptional precision. With a commitment to quality, HORST Engineering is AS9100 certified and holds vendor codes with major aerospace manufacturers, ensuring their parts are integral to various aircraft systems. Their focus on sustainability and community involvement further underscores their role as a responsible player in the aerospace sector.


14. Budney Overhaul & Repair, LTD. / Budney Aerospace, Inc.


Budney Overhaul & Repair, LTD. / Budney Aerospace, Inc. is a woman-owned aerospace manufacturer based in Berlin, Connecticut. Established in 1989, the company has built a solid reputation over more than three decades in the industry. Budney Aerospace specializes in the production of complex machined components and sub-assemblies tailored for the aerospace and land turbine engine industries. With over 50 years of combined experience, they offer a range of services, including advanced welding and chemical processing, ensuring that they meet the rigorous demands of their clients. The company is FAA and EASA certified, which allows them to operate as a certified repair station, further enhancing their credibility. Their commitment to quality is reflected in their AS9100 and ISO 9001 certifications, as well as their NADCAP accreditations for various manufacturing processes. Budney Aerospace is dedicated to providing cost-effective, high-quality products, and they have established strong relationships with major industry players, including Pratt & Whitney.


15. Senior Aerospace Connecticut


Senior Aerospace Connecticut, now known as PCX Aerosystems, is an aerospace manufacturer based in Enfield, Connecticut. Founded in 1956, the company specializes in precision machining and the production of flight-critical components for military and space applications. Their product range includes transmissions, gearboxes, and structural assemblies, catering primarily to aerospace and defense original equipment manufacturers (OEMs). With a strong emphasis on quality and reliability, Senior Aerospace Connecticut ensures that its components meet the rigorous standards required in the aerospace industry. The company has a proven track record of delivering high-quality products, which is crucial for maintaining safety and performance in aerospace operations. Their operations are supported by a skilled workforce and advanced manufacturing technologies, positioning them as a significant contributor to the aerospace manufacturing sector.


16. Paul Murphy

  • Website: agcincorporated.com
  • Ownership type: Private
  • Headquarters: Meriden, Connecticut, United States (USA)
  • Founded year: 2013
  • Headcount: 1-10
  • LinkedIn: paul-murphy

AGC Acquisition LLC, based in Meriden, Connecticut, is a private manufacturer that specializes in producing precision components and complex assemblies for the aerospace and defense industries. Established in 2013, the company has quickly made a name for itself by focusing on both military and commercial applications. AGC is dedicated to providing innovative solutions tailored to the specific requirements of original equipment manufacturers. Their operations are characterized by a strong commitment to quality, timely delivery, and exceptional customer service. With a team of experienced engineers, AGC has developed proprietary processes that enhance their manufacturing capabilities, allowing them to adapt to the evolving needs of their clients. The company has also demonstrated its involvement in significant aerospace programs, such as its support for the NP2000 program, showcasing its relevance in the industry.


17. Meriden Manufacturing Inc

  • Website: meridenmfg.com
  • Ownership type: Family Owned
  • Headquarters: Meriden, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1965
  • Headcount: 1-10
  • LinkedIn: meriden-manufacturing-inc

Meriden Manufacturing Inc, based in Meriden, Connecticut, has been a family-owned business since its inception in 1965. The company specializes in manufacturing aerospace components and assemblies, focusing on high-quality production and timely delivery. With a workforce of around 22 employees, Meriden Manufacturing operates from a 40,000 square foot facility equipped with advanced machinery. Their capabilities include CNC machining, engineering, quality assurance, tooling, and wire EDM, all tailored to meet the rigorous standards of the aerospace sector. The company has built strong relationships with notable clients, including Pratt & Whitney and the Department of Defense, showcasing their ability to deliver complex aerospace solutions. Meriden Manufacturing's commitment to quality is reflected in their AS9100 certification, which ensures adherence to industry standards. They continuously invest in employee training and technology upgrades to maintain their competitive edge in the aerospace manufacturing landscape.


18. Rotating Composite Technologies, LLC


Rotating Composite Technologies, LLC, founded in 2008 and based in Berlin, Connecticut, is an aerospace engineering and manufacturing company that specializes in composite propeller and rotor systems. The firm provides comprehensive design, development, and certification services, primarily catering to aerospace startups and defense contractors. With a team of experienced aerospace engineers and skilled technicians, RCT addresses complex challenges in the aerospace sector. Their capabilities include Resin Transfer Molded (RTM) propeller and rotor design, vehicle integration, and regulatory compliance. RCT is known for its agility and ability to meet customer needs at various stages of their projects, ensuring timely and budget-conscious delivery. The company has worked on notable projects, including contributions to the Sikorsky X2 Technology Demonstrator, showcasing their expertise in high-performance aerospace solutions.


19. Alpha Q, Inc.

  • Website: alphaqinc.com
  • Ownership type: Private
  • Headquarters: Colchester, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1964
  • Headcount: 51-200
  • LinkedIn: alpha-q-inc-

Alpha Q, Inc. is an aerospace manufacturer based in Colchester, Connecticut, specializing in the production of complex aerospace components and precision machining services. Established in 1964, the company has built a reputation for delivering high-quality products that meet stringent industry standards. Alpha Q serves a variety of customers in the aerospace, defense, and commercial aviation sectors, emphasizing engineering and manufacturing excellence. The company operates from a 74,000 square foot facility and has plans for expansion to accommodate growing customer demand. With a workforce of skilled associates, Alpha Q is dedicated to continuous improvement and customer satisfaction. Their capabilities include ultra-high tolerance milling, assembly, and testing services, and they utilize advanced inspection technologies to ensure product quality. As a Tier 1 supplier, they play a critical role in the supply chains of major aerospace manufacturers, contributing to the safety and efficiency of military and commercial aviation.


20. Pegasus Manufacturing, Inc.

  • Website: pegasusmfg.com
  • Ownership type: Corporate
  • Headquarters: Middletown, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: March 2016
  • Founded year: 1989
  • Headcount: 51-200
  • LinkedIn: pegasus-manufacturing-inc.

Pegasus Manufacturing, Inc., operating under the name L&P Aerospace, is an aerospace manufacturer based in Middletown, Connecticut. Founded in 1989, the company specializes in high-performance tube and duct assemblies tailored for both commercial and military applications. They serve a variety of clients, including aircraft manufacturers and military organizations, ensuring that their products meet rigorous quality standards and can endure extreme conditions. Their operations involve custom engineering and manufacturing processes, allowing them to deliver reliable and precise components. The company is certified by prominent aerospace organizations, which underscores its commitment to quality and safety in the aerospace sector. With a workforce of around 46 employees, Pegasus Manufacturing is part of Leggett & Platt, Inc., and plays a vital role in supplying essential components for various aerospace systems.


21. Electro Methods Inc

  • Website: electro-methods.com
  • Ownership type: Corporate
  • Headquarters: South Windsor, Connecticut, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: February 2025
  • Founded year: 1963
  • Headcount: 201-500
  • LinkedIn: electro-methods-inc

Electro Methods Inc, based in South Windsor, Connecticut, is an aerospace manufacturer with a rich history dating back to 1963. The company specializes in the production of complex fabricated and machined components specifically for turbine engines. With a workforce of around 69 employees, Electro Methods prides itself on its engineering services and high-quality manufacturing capabilities. They have built a reputation for meeting stringent safety and performance standards, which is critical in the aerospace industry. Their facilities span 198,000 square feet and are equipped with state-of-the-art machining and fabrication technologies. Electro Methods is recognized for its ability to manage multiple special processes in-house, allowing for greater control over quality and delivery timelines. They have collaborated with notable OEM partners on advanced turbine engine programs, translating innovative design concepts into production realities. Their commitment to continuous improvement and investment in modern technologies positions them well for future challenges in the aerospace sector.


22. New England Airfoil Products Inc.


New England Airfoil Products Inc. (NEAP), located in Farmington, Connecticut, has been a significant player in the aerospace manufacturing industry since its inception in 1955. The company specializes in the production of gas turbine components, catering to both aerospace and defense sectors. NEAP's product offerings include compressor airfoils, turbine blades, and various structural components, all crafted with precision from high-performance materials such as nickel-based alloys and titanium. With a modern facility exceeding 100,000 square feet, NEAP produces hundreds of thousands of parts annually, supporting the lifecycle of gas turbines through advanced manufacturing techniques. Their commitment to quality is evident in their certifications, including AS 9100 Rev. D and ISO 9001:2015, and their active engagement with major OEMs like Pratt & Whitney and NASA highlights their integral role in the aerospace supply chain. NEAP's focus on continuous improvement and innovation positions them well for future growth in the industry.



Aerospace Manufacturing Insights: Key Companies in Connecticut


CompanyHeadquarterSizeFoundedOwnership
Pioneer Aerospace CorporationSouth Windsor, Connecticut, United States (USA)10001+1938Corporate
Pratt & WhitneyEast Hartford, Connecticut, United States (USA)10001+1925Private
PCX AerosystemsNewington, Connecticut, United States (USA)501-10001900Private
Aerospace Drive Systems, by TimkenManchester, Connecticut, United States (USA)51-2001946Corporate
United Technologies Research CenterEast Hartford, Connecticut, United States (USA)501-10001929Venture Capital
Aero GearWindsor, Connecticut, United States (USA)201-5001982Private
Butler Aerospace & DefenseShelton, Connecticut, United States (USA)1001-50001947Corporate
Hanwha Aerospace USACheshire, Connecticut, United States (USA)501-10001977Private
Cambridge Specialty Company, Inc.Berlin, Connecticut, United States (USA)51-2001952Private
ACMT, Inc.Manchester, Connecticut, United States (USA)51-2001986Private
Numet LLCOrange, Connecticut, United States (USA)51-2001984Corporate
AeroCision, LLCChester, Connecticut, United States (USA)51-2001958Private Equity
HORST EngineeringEast Hartford, Connecticut, United States (USA)51-2001946Family Owned
Budney Overhaul & Repair, LTD. / Budney Aerospace, Inc.Berlin, Connecticut, United States (USA)201-5001989Private
Senior Aerospace ConnecticutEnfield, Connecticut, United States (USA)51-2001956Corporate
Paul MurphyMeriden, Connecticut, United States (USA)1-102013Private
Meriden Manufacturing IncMeriden, Connecticut, United States (USA)1-101965Family Owned
Rotating Composite Technologies, LLCBerlin, Connecticut, United States (USA)11-502008Private
Alpha Q, Inc.Colchester, Connecticut, United States (USA)51-2001964Private
Pegasus Manufacturing, Inc.Middletown, Connecticut, United States (USA)51-2001989Corporate
Electro Methods IncSouth Windsor, Connecticut, United States (USA)201-5001963Corporate
New England Airfoil Products Inc.Farmington, Connecticut, United States (USA)51-2001955Family Owned


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