Connecticut is home to a versatile group of companies specializing in electronic manufacturing, a growing industry that's reshaping the technological landscape. These companies, grounding their operations in innovation and cutting-edge design, provide comprehensive services ranging from electronics circuitry and system integration to semiconductor development. With the advent of big data and AI, these companies have been dexterously bridging the gap to next-generation devices and applications. They largely serve sector-specific industries such as telecommunications, medical, and aerospace, and continue to drive forward in their quest to meet rapidly advancing technological needs.


Top 19 electronic manufacturing companies in Connecticut

1. MacDermid Alpha Electronics Solutions

MacDermid Alpha Electronics Solutions is a company that offers integrated solutions in electronics design and manufacturing. They provide unmatched capabilities in electronics circuitry, assembly, and semiconductor divisions. Their products and solutions bridge the performance gap to next-generation devices, enabling the widespread deployment of big data, AI, and other intensive applications.


2. Microboard

  • Website: microboard.com
  • Headquarters: Seymour, Connecticut, United States
  • Founded: 1983
  • Headcount: 51-200
  • LinkedIn

Microboard is an electronics manufacturing services provider that specializes in circuit card assembly, system integration, and test services.


3. Altek Electronics, Inc.

Altek Electronics offers printed circuit board assembly services to OEMs in the telecommunications industry. They provide high-quality electronic components and specialize in industries such as medical and aerospace. With a focus on continuous improvement and innovation, Altek strives to deliver the best possible product to their customers.


4. Accutron Inc.

Accutron Inc. is a company based in Windsor, CT, USA that offers a wide range of services including PCB assembly, SMT assembly, Thru-Hole assembly, Box Build assembly, and complete system integration. They provide automated assembly, testing, material management, and design for manufacturability services. Accutron Inc. specializes in high-volume production and is ISO 9001, ISO 13485, and AS9100 certified.


5. Kimchuk, INC.

  • Website: kimchuk.com
  • Headquarters: Danbury, Connecticut, United States
  • Founded: 1964
  • Headcount: 51-200
  • LinkedIn

Kimchuk Inc. is an electronics firm specializing in Electronic and Electromechanical Contract Manufacturing Services and Engineering Design. They offer fast and technologically advanced production of reliable and high-quality products for a variety of industries. Kimchuk is committed to customer satisfaction and delivers products on time, at a competitive price.


6. Argo EMS

  • Website: argoems.com
  • Headquarters: Clinton, Connecticut, United States
  • Founded: 1969
  • Headcount: 51-200
  • LinkedIn

ArgoEMS is a full-service electronics manufacturing company that offers turn-key PCB assembly work. With their modern facility and state-of-the-art equipment, they specialize in surface mount technology printed circuit board assembly. They provide high-quality products at competitive pricing and ensure on-time delivery.


7. Tornik, LLC

  • Website: tornik.com
  • Headquarters: East Hartford, Connecticut, United States
  • Founded: 1990
  • Headcount: 51-200
  • LinkedIn

Tornik.com is a company that specializes in the manufacturing of cable assemblies, harness assemblies, electromechanical assemblies, and turn-key box builds. With over 30 years of experience, they offer high-quality products and services to customers in the medical device, aerospace, industrial, consumer electronics, telecommunications, and green technology industries.


8. Scott Electrokrafts, Inc.

Scott Electrokrafts is a contract manufacturing company offering services such as PC board assembly, cable and harness assembly, system integration, prototyping, and production quantities testing. They specialize in meeting the unique needs of their customers by providing comprehensive and documented processes to ensure consistent quality. With over 50 years of experience, they are known for their commitment to customer satisfaction and ability to handle all aspects of a product's manufacturing process.


9. AG Semiconductor Services, LLC

AG Semiconductor Services (AGSS) is a leading provider of used electronics manufacturing equipment in the semiconductor industry. They specialize in semiconductor manufacturing, IC test/assembly, and printed circuit board assembly equipment. With a focus on quality, flexibility, and availability, AGSS offers a range of services including cleanroom and warehousing services, acquisitions, compliance, equipment remarketing, insurance, project management, sales, and transport & logistics.


10. Carlton Industries Corporation (CIC)

  • Website: cicems.com
  • Headquarters: Hamden, Connecticut, United States
  • Founded: 1994
  • Headcount: 11-50
  • LinkedIn

Carlton Industries Corporation offers complete electronic manufacturing services to meet the critical requirements for fast turnaround, high reliability, and exceptional quality. Their services include automated optical inspection, box build, cable assembly, consignment assembly services, engineering, plated through hole assembly, robotic conformal coating, supply chain management, surface mount technology, and testing & programming.


11. Doltronics LLC

Doltronics - Full Service Electronic Product Assembly.


12. Restronics Company Inc.

  • Website: restronics.com
  • Headquarters: Stamford, Connecticut, United States
  • Founded: 1980
  • Headcount: 11-50
  • LinkedIn

Restronics is a leading sales agency for the electronics and medical equipment manufacturing industry, representing leading manufacturers in the United States. With over 30 years of experience, Restronics utilizes technology and strong industry relationships to achieve partners' goals.


13. Amphenol Communications Solutions

  • Website: amphenol-cs.com
  • Headquarters: United States, Connecticut, United States
  • Founded: 1988
  • Headcount: 5001-10000
  • LinkedIn

Amphenol CS is a global manufacturing company that specializes in custom interconnect solutions. They offer a broad array of innovative technology and solutions to support the growth of information, communications, and commercial electronics markets. Their expertise lies in plating, signal integrity performance, and power management.


14. Northeast Quality Service LLC

Northeast Quality Service is a precision manufacturing and assembly company that offers turnkey assembly of build to print components. They provide machining, assembly, and purchasing services to support all manufacturing needs. With an ISO 9001 certification, they ensure unbeatable quality and pricing. Their wide range of machining equipment and capabilities allows for the production of multi-level component assembly, prototype components, and large-scale production runs. Their customer-focused approach drives their decision-making and ensures customer needs are at the center of the manufacturing process.


15. Able Coil & Electronics Co., Inc.

  • Website: ablecoil.com
  • Headquarters: Bolton, Connecticut, United States
  • Founded: 1969
  • Headcount: 51-200
  • LinkedIn

Able Coil & Electronics is a company specialized in molded assemblies, toroidal assemblies, and custom configuration & manufacturing for diverse industries. They offer a collaborative and custom process with in-house engineering and tooling capabilities. They provide support for prototypes and short production runs with minimal lead times.


16. Dymax

  • Website: dymax.com
  • Headquarters: Torrington, Connecticut, United States
  • Founded: 1980
  • Headcount: 201-500
  • LinkedIn

Dymax is a company that specializes in developing and providing innovative light-curable materials, dispense equipment, and UV/LED light-curing systems. They offer solutions to improve manufacturing efficiencies in various industries, including consumer electronics, medical devices, automotive electronics, aerospace and defense. With a wide portfolio of coatings, adhesives, encapsulants, and thermal interface materials, Dymax helps protect and enhance the performance of electronic components. They are known for their cutting-edge, environmentally friendly technologies.


17. LYS Global Technology

  • Website: lysglobal.com
  • Headquarters: Avon, Connecticut, United States
  • Headcount: 1-10

LYS Global Technology LLC is located in Avon, CT. It also has an office in Shanghai China. We specialize in providing services for commercial and aerospace companies seeking low-cost sourcing opportunities in Asia. We specialize in US-China manufacturer/supplier relationship building. Our goal is to provide you with a low-cost, high quality supplier for your manufacturing needs. As a bridge, LYS Global helps small businesses reach out and growing their market share in China, and provides import/export services for customer's needs.LYS Global also provides low-cost, professional technical staffing solutions to meet most company's needs. LYS Global is partnered with numerous Asian professional manufacturers, providing depth-of-capability to meet any manufacturing need. From simple plastics manufacture, complex metal machining, to engineered motors, LYS Global Technology has the partner to support your low-cost manufacturing needs. LYS Global possesses multi-lingual, multi-cultural skills and understanding. We have t he ability to understand the culture we are working in to help successfully build long-lasting relationships.


18. Seconn Fabrication LLC

  • Website: seconn.com
  • Headquarters: Waterford, Connecticut, United States
  • Founded: 2003
  • Headcount: 51-200
  • LinkedIn

Seconn is a sheet metal fabrication company located in Connecticut. With a 60,000 square foot facility and advanced technology, they offer customized services and production to meet customers' project needs. They are known for their strong customer partnerships and commitment to delivering high-quality products. Seconn is a trusted supplier with expertise in engineering, manufacturing, and on-time delivery.


19. A & J Electronics Corp-Mach Div

  • Website: a-j.com
  • Headquarters: Brookfield, Connecticut, United States
  • Founded: 1980
  • Headcount: 11-50
  • LinkedIn

A&J is a full-service machine shop that offers wire EDM cutting, CNC milling, and custom machinery. The company was established in 1980 and has since grown into a 10,500 square foot facility in Danbury, CT.


Want to find more electronic manufacturing companies?


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