Electronics manufacturing companies in Illinois focus on creating components that power today's technology. These manufacturers produce a range of products from circuit boards to advanced display solutions. With technological advancements pushing smart devices and electric vehicles into the spotlight, this industry is evolving rapidly. Companies are increasingly prioritizing sustainability, seeking eco-friendly materials and processes. As demand for high-quality electronics persists, the Illinois manufacturing sector is well-positioned to innovate and adapt, making strides in automation and digital integration.


The companies featured in this list exhibit a range of sizes and specializations across Illinois. From large established firms like Molex to smaller, niche players like Circuit Works, these companies share a common focus on electronic components and innovations. Many were founded in the mid-20th century, reflecting a long-standing industry presence. Headquarters span multiple cities, showcasing regional strengths in various sectors including automotive, telecommunications, and consumer electronics.


Continue reading to discover the top electronics manufacturing companies in Illinois.


Top 19 Electronics Manufacturing Companies in Illinois


1. Molex

  • Website: molex.com
  • Ownership type: Corporate
  • Headquarters: Lisle, Illinois, United States (USA)
  • Employee distribution: United States (USA) 34%, India 22%, Mexico 14%, Other 31%
  • Latest funding: $7.2B, September 2013
  • Founded year: 1938
  • Headcount: 10001+
  • LinkedIn: molex

Molex LLC, based in Lisle, Illinois, is a prominent manufacturer specializing in electronic, electrical, and fiber optic connectivity systems. Founded in 1938, the company has grown to employ over 12,000 individuals worldwide. Molex serves a variety of industries, including automotive, healthcare, and telecommunications, providing more than 100,000 products such as connectors and cable assemblies. Their focus on innovation is evident in their development of advanced interconnect solutions that enhance the performance of electronic devices. Molex has also made strides in the automotive sector, supplying critical components for electric vehicles and automated driving systems. The company operates globally, with a significant presence in countries like India, Mexico, and China, ensuring they can meet the needs of their international clientele.


2. Itw-lumex

  • Website: lumex.com
  • Ownership type: Private
  • Headquarters: Carol Stream, Illinois, United States (USA)
  • Employee distribution: Taiwan 50%, United States (USA) 50%
  • Founded year: 1912
  • Headcount: 51-200
  • LinkedIn: lumex_2

Itw-lumex, based in Carol Stream, Illinois, is a private electronic component manufacturer with a history dating back to 1912. The company specializes in optoelectronics, focusing on high-efficiency LEDs and LCDs. They cater to a variety of industries, including industrial controls and medical equipment, providing both standard and customizable solutions. Lumex is recognized for its technical support, which helps clients navigate design challenges and select the most appropriate technology for their applications. With a workforce split evenly between the United States and Taiwan, Itw-lumex demonstrates a global approach to its operations, ensuring that it remains responsive to market demands and technological advancements.


3. Motorola Mobility (a Lenovo Company)

  • Website: motorola.com
  • Ownership type: Corporate
  • Headquarters: Chicago, Illinois, United States (USA)
  • Employee distribution: United States (USA) 23%, Brazil 20%, India 20%, Other 37%
  • Latest funding: $1.2B, July 2010
  • Founded year: 1928
  • Headcount: 1001-5000
  • LinkedIn: motorola-mobility

Motorola Mobility LLC, a subsidiary of Lenovo, is a consumer electronics manufacturer based in Chicago, Illinois. Founded in 1928, the company specializes in smartphones and mobile devices, offering a range of products that include the popular Motorola Razr, Motorola Edge, and Moto G series. In addition to smartphones, Motorola produces accessories and smart home devices, catering to both individual consumers and businesses. The company operates primarily through online sales, allowing customers to purchase directly from their website. With a workforce of over 23,000 employees distributed across various countries, including the United States, Brazil, India, and China, Motorola Mobility maintains a global presence. The company has received significant funding, amounting to $1.2 billion, which underscores its potential for growth and innovation in the electronics sector.


4. United Chemi-Con Inc.

  • Website: chemi-con.com
  • Ownership type: Private
  • Headquarters: Rolling Meadows, Illinois, United States (USA)
  • Employee distribution: United States (USA) 90%, Malaysia 10%
  • Founded year: 1970
  • Headcount: 201-500
  • LinkedIn: united-chemi-con-inc-

United Chemi-Con Inc., established in 1970, is a manufacturer based in Rolling Meadows, Illinois, specializing in aluminum electrolytic capacitors and other electronic components. As a wholly owned subsidiary of Nippon Chemi-Con Corporation, the company has carved out a significant niche in the electronics industry, boasting over 8,000 unique products. United Chemi-Con serves a variety of sectors, providing reliable and innovative solutions that meet the evolving demands of modern electronic applications. The company operates manufacturing facilities in the United States, ensuring a robust supply chain and customer service network. Their commitment to sustainability is evident in their stringent environmental policies aimed at reducing carbon footprints, which resonates with the growing emphasis on eco-friendly practices in manufacturing. With a workforce that is primarily based in the U.S. and a small presence in Malaysia, United Chemi-Con continues to adapt and innovate in a competitive market.


5. Arc-Tronics, Inc.

  • Website: arc-tronics.com
  • Ownership type: Family Owned
  • Headquarters: Elk Grove, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1972
  • Headcount: 51-200
  • LinkedIn: arc-tronics-inc-

Arc-Tronics, Inc. is an electronic manufacturing services company based in Elk Grove Village, Illinois, with a history dating back to 1972. The company specializes in the production of printed circuit boards, cable and harness assemblies, and electro-mechanical assemblies. They cater to a variety of sectors, including military, aerospace, medical, and industrial, providing essential components that support advanced technology applications. With a workforce of approximately 150 employees, Arc-Tronics operates from a facility that spans 50,000 square feet, where they produce over 400,000 assemblies annually. Their commitment to quality is evident in their rigorous testing processes and adherence to industry standards, including AS9100 certification. The company has built strong relationships with notable clients, such as Philips Medical and Selex ES, and has expanded its capabilities to meet the growing demands of the aerospace market. Arc-Tronics also emphasizes employee training and community involvement, further solidifying its position in the industry.


6. Siemens Manufacturing Co., Inc.

  • Website: siemensmfg.com
  • Ownership type: Private
  • Headquarters: Freeburg, Illinois, United States (USA)
  • Employee distribution: Mexico 41%, United States (USA) 35%, India 18%, Other 6%
  • Founded year: 1963
  • Headcount: 51-200
  • LinkedIn: siemens-manufacturing-co-inc-

Siemens Manufacturing Co., Inc., based in Freeburg, Illinois, has been a player in the electronics manufacturing sector since its inception in 1963. Initially founded to produce custom control and test equipment, the company has evolved to specialize in electronic manufacturing services (EMS). Their offerings include surface mount assembly, through-hole assembly, mixed technology assembly, and product testing, catering to a variety of industries such as automotive, medical, and defense. Siemens Manufacturing prides itself on its commitment to quality, employing advanced manufacturing techniques and maintaining certifications like ISO 9001:2015. With a workforce that boasts significant experience, the company emphasizes customer-centric solutions and efficient production processes, positioning itself as a reliable partner in the electronics manufacturing landscape.


7. Newhaven Display

  • Website: newhavendisplay.com
  • Ownership type: Private
  • Headquarters: Elgin, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2001
  • Headcount: 51-200
  • LinkedIn: newhaven-display

Newhaven Display International, Inc. is a private display manufacturer based in Elgin, Illinois, founded in 2001. The company specializes in various display technologies, including LCD, TFT, OLED, and VFD. They cater to a wide range of industries, notably electronics and automotive, by providing high-quality display solutions. Newhaven Display offers a comprehensive product lineup that includes standard and custom displays, as well as accessories designed to meet specific customer requirements. Their engineering team collaborates closely with clients to develop tailored solutions, ensuring that each display meets the unique demands of its application. The company is committed to quality, adhering to stringent ISO standards and maintaining a focus on continuous improvement. Newhaven Display has not reported any funding, indicating a self-sustained operational model.


8. Tecnova / Tecnova Electronics, Waukegan, Illinois

  • Website: tecnova.com
  • Ownership type: Private
  • Headquarters: Waukegan, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1981
  • Headcount: 51-200
  • LinkedIn: tecnova_2

Tecnova / Tecnova Electronics, based in Waukegan, Illinois, specializes in electronic design engineering and contract manufacturing. Established in 1981, the company has built a reputation for delivering high-quality electronic solutions for industrial and commercial applications. Tecnova offers a comprehensive range of services, including electronic contract manufacturing, engineering design, and product development. Their expertise spans various sectors, with a focus on high-reliability products. The company operates from a state-of-the-art facility and employs a skilled workforce, including engineers and technicians trained in industry standards. Tecnova is also recognized for its commitment to quality, holding an ISO-9001:2015 certification. Their collaborations with industry leaders, such as Hirose, further demonstrate their capability to provide innovative solutions tailored to client needs. Tecnova's extensive experience and dedication to quality assurance position it as a noteworthy entity in the electronics manufacturing sector.


9. Circuit Works Corporation

  • Website: cwcems.com
  • Ownership type: Family Owned
  • Headquarters: Waukegan, Illinois, United States (USA)
  • Employee distribution: United States (USA) 62%, Mexico 38%
  • Founded year: 1989
  • Headcount: 51-200
  • LinkedIn: circuit-works-corporation

Circuit Works Corporation, based in Waukegan, Illinois, is a family-owned electronics manufacturer founded in 1989. The company specializes in high-quality electronic manufacturing services, offering a comprehensive range of solutions that include materials management, procurement, electronic prototypes, surface-mount assembly, through-hole assembly, final assembly, and testing. With a workforce of approximately 55 employees, Circuit Works serves a variety of industries, including medical, industrial, digital audio, and transportation. Their facilities in the U.S. and Mexico allow them to provide flexible and responsive services, catering to both small and large-scale projects. The company prides itself on its commitment to quality, adhering to rigorous standards and certifications, which ensures that they deliver reliable and efficient solutions to their clients. Circuit Works has built a reputation for quick turnaround times and a personalized approach to customer service, making them a valuable partner for companies looking to bring electronic innovations to market.


10. Indak Manufacturing Corporation

  • Website: indak.com
  • Ownership type: Private
  • Headquarters: Northbrook, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1947
  • Headcount: 201-500
  • LinkedIn: indak-mfg-group

Indak Manufacturing Corporation, based in Northbrook, Illinois, has been a significant player in the electronics manufacturing industry since its inception in 1947. The company specializes in the production of electrical and electromechanical assemblies, catering primarily to the automotive, medical, and consumer electronics markets. Indak's product range includes printed circuit board (PCB) assemblies, LED lighting solutions, and comprehensive testing services. Their manufacturing capabilities extend to design and engineering, electromechanical assembly, and plastic injection molding. Indak is ISO certified, adhering to the ISO 9001:2015 and ISO 13485:2016 standards, which reflect their commitment to quality in medical device manufacturing. The company emphasizes a zero-defect manufacturing philosophy, ensuring that their products meet stringent reliability and performance criteria. With a workforce of around 201-500 employees, Indak continues to innovate and adapt to the evolving needs of its clients, making it a relevant and active participant in the electronics manufacturing industry.


11. Richardson RFPD

  • Website: richardsonrfpd.com
  • Ownership type: Private
  • Headquarters: Geneva, Illinois, United States (USA)
  • Employee distribution: United States (USA) 24%, China 18%, Italy 17%, Other 41%
  • Founded year: 2011
  • Headcount: 201-500
  • LinkedIn: richardson-rfpd

Richardson RFPD, founded in 2011 and based in Geneva, Illinois, is a technology solutions provider that specializes in RF and microwave components, energy storage, and Internet of Things (IoT) products. The company serves businesses primarily in the electronics and telecommunications sectors, offering a comprehensive range of products and design support to address complex technological challenges. With a workforce of approximately 300 employees, Richardson RFPD has established a notable presence in key markets, including the United States, China, Italy, and the United Kingdom. Their product offerings include antennas, semiconductors, sensors, and power supplies, among others. The company actively participates in industry events and webinars, showcasing their commitment to innovation and customer support. Their extensive line card features products from various manufacturers, further solidifying their role as a key player in the electronics manufacturing industry.


12. OverflyPacific Corporation

  • Website: ultimatepcb.com
  • Ownership type: Private
  • Headquarters: Ottawa, Illinois, United States (USA)
  • Employee distribution: Canada 100%
  • Founded year: 2004
  • Headcount: 501-1000
  • LinkedIn: overflypacific-corporation

OverflyPacific Corporation, founded in 2004, is a private manufacturing company based in Ottawa, Illinois, USA. The company specializes in electronic product manufacturing, providing a comprehensive suite of services that includes PCB fabrication, PCB assembly, cable assembly, and plastic part manufacturing. With a workforce of approximately 501-1000 employees, OverflyPacific operates with a strong emphasis on delivering high-quality, cost-effective solutions to its clients. Their facilities are ISO9001 certified, ensuring adherence to rigorous quality management standards. OverflyPacific serves a variety of businesses in the electronics sector, positioning itself as a one-stop solution for contract manufacturing needs. The company prides itself on its ability to meet client specifications and has established a reputation for reliability and customer satisfaction in the industry.


13. Creative Electronics & Software, Inc.

  • Website: cesinfo.com
  • Ownership type: Private
  • Headquarters: South Elgin, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1989
  • Headcount: 51-200
  • LinkedIn: creative-electronics-software-inc

Creative Electronics & Software, Inc. (CES) is a privately held contract manufacturer based in South Elgin, Illinois, with an additional facility in Las Vegas, Nevada. Established in 1989, CES specializes in printed circuit board assembly, electromechanical systems, and cable harness assembly. The company serves a variety of industries, including gaming, medical, military, and energy sectors. CES prides itself on its engineering support, offering services that range from product design and development to component lifecycle management. Their manufacturing capabilities include advanced assembly methods and rigorous quality control processes, ensuring compliance with industry standards such as ISO 9001:2015 and IPC-610 Class 2. With a workforce of around 31 employees, CES has built long-term relationships with many of its clients, reflecting its commitment to quality and customer satisfaction.


14. International Control Services


International Control Services, Inc. (ICS), based in Decatur, Illinois, has been a player in the electronic manufacturing services (EMS) sector since its inception in 1992. The company focuses on high mix and low volume production, serving a variety of industries including industrial, medical, telecommunications, and aerospace. ICS offers a range of services such as contract manufacturing, supply chain management, and after-market support, which are tailored to meet the specific needs of their clients. Their operational model emphasizes quality and efficiency, aiming to enhance the operational performance of their partners. ICS is ISO 9001:2015 certified, reflecting their commitment to quality management and continuous improvement. The company has built a reputation for reliability and has maintained long-term partnerships with clients, which speaks to their effectiveness in the EMS industry.


15. CCK Automations, LLC

  • Website: cckautomations.com
  • Ownership type: Private
  • Headquarters: Jacksonville, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1999
  • Headcount: 51-200
  • LinkedIn: cck-automations-inc

CCK Automations, LLC, based in Jacksonville, Illinois, has been a notable player in the electronics manufacturing sector since its inception in 1999. The company specializes in the production of printed circuit board assemblies (PCBAs) and injection molded plastics, catering to a variety of industries that require high-quality electronic components. With a workforce of approximately 64 skilled employees, CCK Automations prides itself on its advanced technology and expertise in custom electronic and plastic designs. Their manufacturing capabilities include a range of assembly processes, such as surface mount and electromechanical assembly, which are essential for creating reliable electronic devices. The company has also expanded its operations significantly, moving from a modest facility to a larger 100,000 square foot manufacturing site, reflecting its growth and adaptability in a competitive market. CCK Automations is committed to maintaining high standards, as evidenced by its ISO certification, and actively collaborates with clients to optimize product designs for manufacturing efficiency. This focus on quality and customer collaboration positions CCK Automations as a relevant entity in the electronics manufacturing landscape.


16. ACC Electronix

  • Website: accelectronix.com
  • Ownership type: Private
  • Headquarters: Normal, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1947
  • Headcount: 51-200
  • LinkedIn: acc-electronix

ACC Electronix, based in Normal, Illinois, has been a player in the electronics manufacturing sector since its inception in 1947. Originally known as Audi Cord Corporation, the company has evolved to specialize in rugged electronic solutions that cater to various industries, including agriculture, energy, industrial, HVAC, and construction. With a workforce of 51-200 employees, ACC Electronix prides itself on its ability to deliver high-quality products and services, such as circuit card assembly, product design, fulfillment, and depot repair. Their focus on quality assurance and customer satisfaction is underscored by their adherence to IPC standards and their commitment to continuous improvement. The company operates without reported external funding, indicating a self-sustaining business model that has allowed it to thrive in a competitive environment. ACC Electronix's dedication to meeting the needs of its clients in challenging environments further solidifies its position in the electronics manufacturing industry.


17. Mega Circuit, Inc.

  • Website: megacircuit.com
  • Ownership type: Private
  • Headquarters: Addison, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1985
  • Headcount: 51-200
  • LinkedIn: mega-circuit-inc.

Mega Circuit, Inc., based in Addison, Illinois, has been a player in the electronics manufacturing industry since its inception in 1985. The company specializes in electronic interconnect solutions, with a strong emphasis on RF/Microwave PCBs, antennas, and thermal management products. Mega Circuit serves a variety of sectors, including telecommunications and medical devices, showcasing its adaptability to different market needs. The company prides itself on its rapid prototyping capabilities and logistics services, which are designed to meet the specific requirements of its clients. With a workforce of around 21 employees, Mega Circuit operates entirely within the United States, emphasizing its commitment to domestic manufacturing. Their extensive experience and technological capabilities position them as a reliable partner for companies looking for specialized PCB solutions.


18. HY Connect

  • Website: hyc.com
  • Ownership type: Private
  • Headquarters: Chicago, Illinois, United States (USA)
  • Employee distribution: United States (USA) 80%, India 20%
  • Founded year: 2015
  • Headcount: 51-200
  • LinkedIn: hy-connect

HY Connect, also known as Suzhou HYC Technology Co., Ltd., is a private company based in Chicago, Illinois, founded in 2015. With a workforce of approximately 69 employees, the company focuses on developing and providing testing equipment tailored for display panels, smart wearables, and automotive electronics. Their offerings include high-precision testing solutions that ensure product quality and reliability for manufacturers in the electronics and automotive sectors. HY Connect operates in multiple areas, including semiconductor testing and industrial automation, and has established a presence in both the United States and India. Their commitment to quality and innovation has made them a trusted partner for manufacturers looking to enhance their production processes.


19. Noritake Co., Inc. Electronics Division

  • Website: noritake-elec.com
  • Ownership type: Private
  • Headquarters: Arlington Heights, Illinois, United States (USA)
  • Employee distribution: United States (USA) 74%, Japan 26%
  • Founded year: 1967
  • Headcount: 11-50
  • LinkedIn: noritake-co--inc-

Noritake Co., Inc. Electronics Division, based in Arlington Heights, Illinois, has been a player in the electronics manufacturing industry since its inception in 1967. The company specializes in display technologies, offering a range of products that include LCD touch screens, vacuum fluorescent display (VFD) modules, and OLED displays. These products serve various sectors, such as industrial, medical, and energy, highlighting Noritake's adaptability to different market needs. With a workforce of approximately 43 employees, the company maintains a strong presence in the U.S. while also having a notable connection to Japan, where 26% of its employees are located. Noritake is committed to providing high-quality, reliable solutions tailored to customer requirements, and it has built a reputation for excellent technical support and customer service. Their long history and focus on innovation in display technology position them as a relevant entity in the electronics manufacturing sector.



Electronics Manufacturing Insights: Key Companies in Illinois


CompanyHeadquarterSizeFoundedOwnership
MolexLisle, Illinois, United States (USA)10001+1938Corporate
Itw-lumexCarol Stream, Illinois, United States (USA)51-2001912Private
Motorola Mobility (a Lenovo Company)Chicago, Illinois, United States (USA)1001-50001928Corporate
United Chemi-Con Inc.Rolling Meadows, Illinois, United States (USA)201-5001970Private
Arc-Tronics, Inc.Elk Grove, Illinois, United States (USA)51-2001972Family Owned
Siemens Manufacturing Co., Inc.Freeburg, Illinois, United States (USA)51-2001963Private
Newhaven DisplayElgin, Illinois, United States (USA)51-2002001Private
Tecnova / Tecnova Electronics, Waukegan, IllinoisWaukegan, Illinois, United States (USA)51-2001981Private
Circuit Works CorporationWaukegan, Illinois, United States (USA)51-2001989Family Owned
Indak Manufacturing CorporationNorthbrook, Illinois, United States (USA)201-5001947Private
Richardson RFPDGeneva, Illinois, United States (USA)201-5002011Private
OverflyPacific CorporationOttawa, Illinois, United States (USA)501-10002004Private
Creative Electronics & Software, Inc.South Elgin, Illinois, United States (USA)51-2001989Private
International Control ServicesDecatur, Illinois, United States (USA)51-2001992Private
CCK Automations, LLCJacksonville, Illinois, United States (USA)51-2001999Private
ACC ElectronixNormal, Illinois, United States (USA)51-2001947Private
Mega Circuit, Inc.Addison, Illinois, United States (USA)51-2001985Private
HY ConnectChicago, Illinois, United States (USA)51-2002015Private
Noritake Co., Inc. Electronics DivisionArlington Heights, Illinois, United States (USA)11-501967Private


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