Power electronics companies in Illinois focus on converting and controlling electric power through innovative technologies. These firms produce essential components, such as semiconductors, power supplies, and energy storage devices, vital for modern applications in industries ranging from automotive to telecommunications. As the demand for energy-efficient solutions grows amidst rising environmental awareness, these companies are pivoting towards sustainable practices and collaborations. This evolution highlights the growing importance of connectivity in our lives, as they strive to meet the increasing standards for renewable energy integration and electric vehicle support. The commitment to innovation places these companies at the forefront of a shifting energy landscape.

The companies highlighted in this list encompass a mix of sizes, from small firms to major manufacturers. They span various specializations including electronic components, power supplies, and resistors. Founded between the 1930s and 2010s, these firms have established headquarters in locations like Cary, Waukegan, and Chicago. Notably, many of these firms emphasize innovation, reflecting a commitment to tailor products that meet industry demands as well as current technological advancements.

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

Top 21 Power Electronics Companies in Illinois

1. Coilcraft, Inc.

• Website: coilcraft.com
• Ownership type: Private
• Headquarters: Cary, Illinois, United States (USA)
• Employee distribution: United States (USA) 65%, Indonesia 12%, India 5%, Other 18%
• Founded year: 1945
• Headcount: 1001-5000
• LinkedIn: coilcraft

Coilcraft, Inc., founded in 1945 and based in Cary, Illinois, is a manufacturer specializing in magnetic components, particularly inductors and transformers. The company serves a variety of industries, including automotive and consumer electronics, providing high-performance products that enhance energy efficiency and signal integrity. Coilcraft is known for its extensive range of inductors, including shielded and unshielded types, as well as power transformers and EMI chokes. They also offer design support tools to assist engineers in selecting the right components for their applications. With a workforce of around 413 employees, Coilcraft operates globally, with a significant presence in the United States and additional facilities in countries like Indonesia, India, and China. Their focus on quality is underscored by various certifications, including ISO and AEC-Q200, ensuring that their products meet stringent industry standards.

2. Ohmite Manufacturing

• Website: ohmite.com
• Ownership type: Private
• Headquarters: Warrenville, Illinois, United States (USA)
• Employee distribution: Mexico 70%, United States (USA) 28%, Other 2%
• Founded year: 1925
• Headcount: 201-500
• LinkedIn: ohmite-manufacturing

Ohmite Manufacturing, based in Warrenville, Illinois, has been a player in the manufacturing sector since its inception in 1925. The company specializes in industrial power resistors, which are critical components in power electronics applications. Ohmite's product offerings include a wide range of resistors, such as wirewound, thick film, and ceramic composition resistors, catering to high current, high voltage, and high energy applications. Additionally, they provide thermal management solutions through their extensive line of heatsinks. Ohmite also engages in assembly services, including PCB assembly and custom thick film circuits, which further enhances their role in the electronics manufacturing industry. Their products are utilized across various sectors, including transportation, medical, military, and aerospace, showcasing their adaptability and relevance in the power electronics market.

3. 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, operates as a technology solutions provider. The company specializes in RF and microwave components, energy storage solutions, and Internet of Things (IoT) products. They cater to businesses in the electronics and telecommunications sectors, providing a wide array of products and design support to address complex technological challenges. With a workforce of around 300 employees, Richardson RFPD has established a global footprint, with operations in multiple countries including China, Italy, and the UK. Their product offerings include antennas, passive devices, power supplies, and semiconductors, among others. The company emphasizes its engineering expertise, boasting over 600 years of combined design experience, which aids clients in selecting the right components for their projects. They also engage in industry events and webinars, showcasing their commitment to innovation and customer support.

4. 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, has been a prominent manufacturer of electronic, electrical, and fiber optic connectivity systems since its founding in 1938. With over 100,000 products, including connectors and cable assemblies, Molex serves various industries, notably automotive and medical. The company is recognized for its commitment to innovation, continuously developing interconnect solutions that enhance the performance of electronic devices. Molex's products are integral to modern applications, particularly in the automotive sector, where they support advanced driver assistance systems (ADAS) and electric vehicle technologies. Their global operations, with a significant workforce distributed across countries like India, Mexico, and China, reflect their extensive reach and capability to meet the demands of a rapidly changing market.

5. Omron Electronic Components- Americas

• Website: components.omron.com
• Ownership type: Private
• Headquarters: Hoffman Estates, Illinois, United States (USA)
• Employee distribution: United States (USA) 95%, Mexico 5%
• Founded year: 1933
• Headcount: 51-200
• LinkedIn: omron-electronic-components-americas

Omron Electronic Components- Americas, based in Hoffman Estates, Illinois, is a private company that has been operational since 1933. It specializes in manufacturing electronic components, including relays, switches, connectors, and sensors. These products are essential for businesses in the automation and manufacturing sectors, where they enhance operational efficiency and product reliability. Omron's offerings include a wide range of power relays, signal relays, and solid-state relays, which are critical in power management applications. The company has a strong presence in the Americas, with 95% of its workforce located in the United States and a smaller portion in Mexico. Omron is also recognized for its sustainability initiatives, having been listed in the Dow Jones Sustainability World Index for six consecutive years, reflecting its commitment to environmental, social, and governance standards.

6. Tripp Lite

• Website: tripplite.com
• Ownership type: Corporate
• Headquarters: Chicago, Illinois, United States (USA)
• Employee distribution: United States (USA) 70%, Mexico 19%, Israel 3%, Other 8%
• Latest funding: $1.6B, January 2021
• Founded year: 1922
• Headcount: 201-500
• LinkedIn: tripp-lite

Tripp Lite, based in Chicago, Illinois, is a prominent manufacturer of power management and connectivity solutions. Founded in 1922, the company has built a reputation for providing high-quality products that cater to a wide array of applications. Their offerings include uninterruptible power supplies (UPS), power distribution units (PDUs), surge protectors, and various types of cables and connectivity solutions. Tripp Lite serves a broad spectrum of customers across sectors such as healthcare, education, and industrial markets, ensuring reliable power management and connectivity. In 2021, Tripp Lite was acquired by Eaton, a global power management company, which has further enhanced its capabilities and market reach. The company continues to innovate and adapt to the changing demands of the power electronics industry, making it a relevant player in this field.

7. 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 and headquartered in Rolling Meadows, Illinois, is a prominent manufacturer of aluminum electrolytic capacitors and other electronic components. As a wholly owned subsidiary of Nippon Chemi-Con Corporation, the company operates manufacturing facilities in the United States, specifically in Buena Park, California, and Lansing, North Carolina. United Chemi-Con is recognized as the largest manufacturer and supplier of aluminum electrolytic capacitors in North America, boasting a product line that includes over 8,000 unique items. Their capacitors are integral to various electronic applications, particularly in power supplies, where they serve crucial functions such as filtering and energy storage. The company emphasizes innovation and sustainability, striving to minimize its carbon footprint while meeting the rigorous demands of modern electronic applications. Their focus on customer-centric technology solutions further enhances their relevance in the power electronics sector.

8. Safco LLC

• Website: safco.com
• Ownership type: Corporate
• Headquarters: Skokie, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: May 2000
• Founded year: 1931
• Headcount: 11-50
• LinkedIn: safco-llc

Safco LLC, founded in 1931 and based in Skokie, Illinois, is a manufacturer that specializes in custom low-voltage power solutions and cable assemblies. The company provides a range of services including engineering, prototyping, and manufacturing, primarily serving the electronics and automotive sectors. With over 70 years of collective design experience, Safco is recognized for its ability to deliver tailored solutions that meet specific technical requirements and industry standards. Their product offerings include various custom cable assemblies that power and charge today's electronic devices. Safco's commitment to quality and customer service has established them as a reliable partner for businesses looking for specialized power solutions. They have a strong focus on innovation, having originally developed the cigarette lighter adapter plug, and continue to adapt to the evolving needs of the market.

9. NuCurrent

• Website: nucurrent.com
• Ownership type: Venture Capital
• Headquarters: Chicago, Illinois, United States (USA)
• Employee distribution: United States (USA) 83%, India 17%
• Latest funding: $100,000, June 2024
• Founded year: 2009
• Headcount: 11-50
• LinkedIn: nucurrent-inc

NuCurrent, founded in 2009 and based in Chicago, Illinois, is a technology company that specializes in wireless power solutions. The firm offers a variety of products, including Qi, NFC, and AirFuel wireless charging systems, along with engineering and consulting services tailored for manufacturers in the consumer electronics industry. With a workforce of around 41 employees, NuCurrent has established itself as a key player in the wireless power sector, contributing to the production of over 500 million devices. The company actively participates in industry standards through its membership in the Wireless Power Consortium, which underscores its commitment to advancing wireless charging technologies. Recently, NuCurrent secured funding, further supporting its innovative efforts and market presence.

10. Puls, L.P.

• Website: pulspower.us
• Ownership type: Private
• Headquarters: Aurora, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2003
• Headcount: 11-50
• LinkedIn: puls-l-p

Puls, L.P., founded in 2003 and based in Aurora, Illinois, is a private manufacturer specializing in DIN rail power supplies and supplementary units. The company is dedicated to delivering efficient power solutions tailored for various industries, including automotive and medical technology. With a workforce of 11-50 employees, Puls operates on a global scale, ensuring that their products meet the specific needs of their business customers. Their product range includes single-phase and three-phase power supplies, DC/DC converters, and various supplementary units designed for reliability and efficiency. Recently, Puls expanded its portfolio by acquiring Wiferion, a startup focused on wireless charging technology, indicating a strategic move to enhance their offerings in the power electronics sector. This commitment to innovation and customer service positions Puls as a significant player in the power electronics industry.

11. JST Corporation / Sales America

• Website: jst.com
• Ownership type: Private
• Headquarters: Waukegan, Illinois, United States (USA)
• Employee distribution: United States (USA) 65%, Indonesia 20%, Malaysia 12%, Other 4%
• Founded year: 1957
• Headcount: 1001-5000
• LinkedIn: jst-sales-america-inc.

JST Corporation / Sales America, founded in 1957, is a manufacturer based in Waukegan, Illinois, specializing in electrical connectors. The company serves multiple industries, including automotive, consumer electronics, and industrial equipment. With a product line that boasts over 100,000 unique items, JST focuses on delivering high-quality and reliable connectors that meet the needs of technology leaders and manufacturers. Their connectors are integral to various applications, from automotive safety systems to consumer devices, ensuring efficient and effective electrical connections. JST operates globally, with a significant presence in the United States and manufacturing facilities in countries like Indonesia and Malaysia. The company emphasizes innovation and customer satisfaction, continuously developing products that enhance performance and reduce costs for their clients.

12. 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 is part of ITW and has carved out a niche in the optoelectronics sector, focusing on high-efficiency LEDs and LCDs. Itw-lumex serves a variety of industries, including industrial controls and medical equipment, providing both standard and customizable solutions. Their commitment to technical support allows them to work closely with clients to address specific application needs, making them a valuable partner in the electronics supply chain. The company operates with a balanced employee distribution between the United States and Taiwan, reflecting its global reach in the optoelectronics market.

13. Eec

• Website: eecsources.com
• Ownership type: Private
• Headquarters: Lake Forest, Illinois, United States (USA)
• Employee distribution: China 100%
• Founded year: 2007
• Headcount: 51-200
• LinkedIn: associated-power-technologies-inc-

Eec, founded in 2007 and based in Lake Forest, Illinois, is a private manufacturer that specializes in power sources and testing equipment. The company serves a variety of industries, including appliance, aerospace, industrial, and medical sectors. Eec's product offerings include the 8500 Series and 400XAC Series, which are designed to provide reliable power solutions for compliance and production testing. They also offer calibration and repair services, ensuring that their clients can maintain the integrity and accuracy of their testing equipment. Eec's commitment to quality and customer support is evident in their tailored solutions for businesses that require precise testing capabilities.

14. MicroLink Devices, Inc.

• Website: mldevices.com
• Ownership type: Private
• Headquarters: Niles, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2000
• Headcount: 11-50
• LinkedIn: microlink-devices-inc.

MicroLink Devices, Inc., founded in 2000 and based in Niles, Illinois, is a private semiconductor manufacturer that specializes in high-efficiency solar cells and RF semiconductor materials. The company operates from a well-equipped facility that includes advanced manufacturing capabilities, such as metalorganic chemical vapor deposition (MOCVD) tools for high-volume production. MicroLink serves customers primarily in the aerospace and telecommunications sectors, providing innovative solutions tailored for unmanned aerial vehicles (UAVs) and wireless communication devices. Their product offerings include lightweight and flexible solar cells, which are particularly suited for mobile power applications, as well as epitaxial materials used in cellular phones and RF devices. MicroLink has also been involved in contract research and development, collaborating with various U.S. government agencies and private sector partners to advance solar technology and RF device structures. The company is ISO 9001-certified, ensuring a commitment to quality and customer satisfaction.

15. Palladium Energy

• Website: palladiumenergy.com
• Ownership type: Private Equity
• Headquarters: Woodridge, Illinois, United States (USA)
• Latest funding: $2.0M, October 2020
• Founded year: 1973
• Headcount: 1001-5000
• LinkedIn: palladium-energy

Palladium Energy, known as Inventus Power, is a battery manufacturer based in Woodridge, Illinois, established in 1973. The company specializes in advanced battery systems, focusing on the design and production of both standard and custom battery packs, chargers, and power supplies. They cater to a wide range of industries, including consumer electronics, medical devices, and critical power applications. With a strong emphasis on reliability and efficiency, Inventus Power has built a reputation for delivering high-quality power solutions to global OEMs. The company has a significant manufacturing presence across multiple countries, including the U.S., Mexico, Brazil, China, and Malaysia, allowing them to support international clients effectively. In 2020, they secured funding amounting to over $2 million, indicating ongoing investment in their operations and innovation efforts.

16. Inventus Power

• Website: inventuspower.com
• Ownership type: Private
• Headquarters: Woodridge, Illinois, United States (USA)
• Employee distribution: Brazil 68%, United States (USA) 15%, Mexico 8%, Other 9%
• Founded year: 1960
• Headcount: 1001-5000
• LinkedIn: inventus-power

Inventus Power, founded in 1960 and based in Woodridge, Illinois, is a prominent manufacturer of advanced battery systems. The company designs and produces both standard and custom battery packs, chargers, and power supplies tailored for a wide array of applications. Their products serve critical sectors such as consumer electronics, medical devices, and industrial vehicles. With a workforce of over 1,400 employees, Inventus Power operates manufacturing facilities across multiple countries, including the United States, Brazil, and China. Their commitment to innovation is evident in their extensive portfolio of patented technologies, which include solutions for high-performance battery management and charging systems. The company has successfully delivered over one billion batteries, underscoring their expertise and reliability in the power solutions market.

17. Mitsubishi Electric Automation, Inc.

• Website: us.mitsubishielectric.com
• Ownership type: Corporate
• Headquarters: Vernon Hills, Illinois, United States (USA)
• Employee distribution: United States (USA) 49%, India 17%, Mexico 10%, Other 24%
• Latest funding: May 2024
• Founded year: 1997
• Headcount: 201-500
• LinkedIn: mitsubishi-electric-automation-inc

Mitsubishi Electric Automation, Inc., based in Vernon Hills, Illinois, is a technology manufacturer that specializes in a wide array of electrical and electronic products and systems. Founded in 1997, the company operates within various industries, including construction and manufacturing. Their offerings include air conditioning systems, factory automation solutions, and energy systems. A notable aspect of their business is the production of semiconductors and power modules, which are integral to efficient power management and control in numerous applications. The company emphasizes innovation and efficiency, helping clients improve operations while reducing energy consumption. With a workforce of over 2,200 employees, Mitsubishi Electric Automation is committed to advancing technology to meet the evolving needs of its customers.

18. Crescend Technologies, LLC

• Website: crescendrf.com
• Ownership type: Private
• Headquarters: Glendale Heights, Illinois, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1979
• Headcount: 51-200
• LinkedIn: crescend-technologies-llc

Crescend Technologies, LLC, based in Glendale Heights, Illinois, is a technology manufacturer that specializes in solid-state microwave energy solutions. Founded in 1979, the company has carved out a niche in the production of advanced microwave generators and amplifiers, serving a variety of sectors including food processing and defense. Their products are designed to meet the needs of commercial and industrial applications, providing efficient and reliable energy solutions. Crescend Technologies is recognized for its pioneering work in solid-state microwave technology, having introduced the world's first 50-kilowatt solid-state microwave generator in 2019. This innovation has allowed them to ship over a million watts of microwave power globally. The company prides itself on its engineering capabilities, offering custom solutions and comprehensive system design services. With a focus on clean energy, their solid-state systems are 100% electric and produce zero emissions, making them suitable for industries aiming to reduce their carbon footprint. Crescend Technologies is also ISO certified, ensuring adherence to high-quality standards in their manufacturing processes.

19. Enercon

• Website: enerconpower.com
• Ownership type: Corporate
• Headquarters: Peoria, Illinois, United States (USA)
• Employee distribution: United States (USA) 91%, Pakistan 5%, Romania 5%
• Latest funding: $13.0M, May 2001
• Founded year: 1975
• Headcount: 51-200
• LinkedIn: enercon-engineering---your-power-partner

Enercon Engineering, Inc., based in Peoria, Illinois, has been a significant player in the engineering and manufacturing of custom power solutions since its inception in 1975. The company specializes in a range of services, including electrical engineering, switchgear manufacturing, and field services. Enercon caters to various sectors, notably the military, commercial, and municipal utilities, showcasing their adaptability and expertise in addressing critical power challenges. With a robust manufacturing facility and a dedicated team, Enercon has successfully completed over 50,000 projects worldwide, demonstrating their capability to deliver tailored solutions that meet specific client needs. Their focus on compliance with military specifications and UL standards further underscores their commitment to quality and reliability in power integration. Enercon's involvement in renewable energy projects also highlights their alignment with modern energy trends, making them a relevant entity in the power electronics sector.

20. DeAmertek Corporation

• Website: deamertek.com
• Ownership type: Private
• Headquarters: Lombard, Illinois, United States (USA)
• Employee distribution: United States (USA) 86%, India 14%
• Founded year: 1977
• Headcount: 501-1000
• LinkedIn: deamertek-corporation

DeAmertek Corporation, founded in 1977 and based in Lombard, Illinois, is a technology manufacturer that specializes in automotive components and electronics. The company provides advanced solutions such as Electric Power Assisted Steering (EPS) and Adaptive Front Lighting (AFS) to original equipment manufacturers (OEMs) in the automotive industry. Their products aim to enhance vehicle safety and performance through innovative design and manufacturing processes. DeAmertek serves over 25 OEM customers and operates a world-class manufacturing facility with a supply chain network that supports global operations. The company is also recognized for its commitment to quality, holding certifications such as ISO/IATF 16949, ISO 9001, and ISO 14001. With a workforce that includes a significant presence in the United States and India, DeAmertek continues to focus on research and development to advance automotive technologies, including advanced driver-assistance systems (ADAS).

21. 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 Electronics, based in Waukegan, Illinois, has been operational since 1981, providing electronic design engineering and contract manufacturing services. The company focuses on high-reliability applications for both industrial and commercial sectors. Tecnova offers a comprehensive suite of services, including electronic contract manufacturing, engineering design, and product development. They are particularly noted for their capabilities in motor drives and power electronics, where they design and manufacture custom solutions tailored to meet specific client needs. Their engineering team is experienced in developing advanced motor drives that optimize performance and efficiency. Tecnova is ISO-9001:2015 certified, ensuring that their manufacturing processes meet stringent quality standards. They have built a reputation for reliability and innovation, serving a range of industries with their electronic solutions.

Power Electronics Insights: Key Companies in Illinois

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