The automotive manufacturing industry in Illinois is a vital sector focused on producing essential parts and components for vehicles. With a variety of companies specialized in areas such as metal fabrication, electronic systems, and environmental solutions, this industry plays a crucial role in ensuring the quality and efficiency of vehicle production. As the automotive market shifts towards electric and automated vehicles, manufacturers in Illinois are adapting by investing in new technologies and sustainable practices. This ongoing transformation presents unique growth opportunities as companies innovate to meet the evolving demands of consumers and environmental regulations.


This list highlights 22 notable automotive manufacturing companies based in Illinois. They vary in size, with some employing just a handful of staff while others have thousands. Established from 1936 to as recent as 2002, these companies specialize in producing everything from automotive components and climate control parts to high-performance filtration products. Headquarters extend across the state, from cities like Elgin and Marion to Chicago and Rockford, showcasing the geographic spread of expertise in this critical sector.


Read on to discover prominent automotive manufacturing companies in Illinois.


Top 22 Automotive Manufacturing Companies in Illinois


1. Wanxiang America Corporation

  • Website: wanxiang.com
  • Ownership type: Corporate
  • Headquarters: Elgin, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: December 2012
  • Founded year: 1993
  • Headcount: 1-10
  • LinkedIn: wanxiang-america-corporation

Wanxiang America Corporation, established in 1993 and based in Elgin, Illinois, is a prominent player in the automotive parts manufacturing sector. The company specializes in producing high-quality bearings and driveline components, which are essential for vehicle production. Serving both automotive manufacturers and industrial clients, Wanxiang America focuses on cost reduction and product enhancement, leveraging its global resources to meet customer needs effectively. The company is a subsidiary of Wanxiang Group, one of the largest automotive components manufacturers in China, which further strengthens its position in the market. Wanxiang America is also involved in various initiatives, including electric vehicle development and solar panel manufacturing, showcasing its adaptability and forward-thinking approach in the automotive industry.


2. AISIN Manufacturing Illinois

  • Website: aisinillinois.com
  • Ownership type: Private
  • Headquarters: Marion, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 2002
  • Headcount: 1001-5000
  • LinkedIn: aisin-mfg.-illinois

AISIN Manufacturing Illinois, LLC (AMI) is an automotive manufacturer based in Marion, Illinois, established in 2002. The company specializes in producing components such as sunroofs, door handles, and various other parts for prominent automotive brands like Toyota, General Motors, Lexus, and Subaru. AMI operates with a strong emphasis on quality, having achieved certifications such as ISO 9001 and IATF 16949, which reflect their commitment to excellence in manufacturing. The facility spans 330,000 square feet and employs a workforce dedicated to continuous improvement and community involvement. AMI has also been recognized for its environmental initiatives, achieving a Zero-Landfill status and maintaining ISO 14001 certification. Their operational success is underscored by their ability to ship a substantial volume of parts daily, indicating a robust position within the automotive supply chain.


3. MAT Holdings, Inc.

  • Website: matholdingsinc.com
  • Ownership type: Family Owned
  • Headquarters: Long Grove, Illinois, United States (USA)
  • Employee distribution: India 56%, United States (USA) 41%, Other 4%
  • Founded year: 1984
  • Headcount: 10001+
  • LinkedIn: mat-holdings-inc-

MAT Holdings, Inc., based in Long Grove, Illinois, is a family-owned manufacturing company founded in 1984. The company operates on a global scale, employing over 13,000 individuals across various locations. MAT Holdings specializes in automotive and consumer products, with a significant focus on automotive components such as braking systems and suspension products. Their automotive division, known as MAT Auto Group, serves both original equipment manufacturers (OEM) and aftermarket customers, providing a wide range of products including brake pads, shoes, rotors, and struts. The company prides itself on its commitment to quality and performance, investing in research and development to enhance its offerings. With a robust supply chain and manufacturing capabilities across multiple continents, MAT Holdings is well-positioned to meet the demands of the automotive industry.


4. North American Lighting, Inc.

  • Website: nal.com
  • Ownership type: Private
  • Headquarters: Paris, Illinois, United States (USA)
  • Employee distribution: United States (USA) 98%, Other 2%
  • Founded year: 1983
  • Headcount: 1001-5000
  • LinkedIn: north-american-lighting

North American Lighting, Inc. (NAL), established in 1983 and headquartered in Paris, Illinois, is a prominent manufacturer of automotive lighting systems. The company specializes in creating innovative lighting solutions that enhance vehicle safety and visibility, producing vital components such as headlights and taillights. NAL serves a range of major automotive manufacturers, contributing significantly to the automotive supply chain. With a workforce of approximately 2,577 employees, NAL operates multiple facilities across North America, including plants in Illinois, Alabama, and Indiana. The company is a subsidiary of Koito Manufacturing, which underscores its commitment to quality and continuous improvement through the application of kaizen management principles. NAL's focus on innovation is evident in its participation in industry events and its ongoing development of advanced lighting technologies, positioning it as a key player in the automotive sector.


5. UGN, Inc.

  • Website: ugn.com
  • Ownership type: Private
  • Headquarters: Downers Grove, Illinois, United States (USA)
  • Employee distribution: United States (USA) 79%, Mexico 21%
  • Latest funding: Other (Grant), $10,000, March 2024
  • Founded year: 1986
  • Headcount: 1001-5000
  • LinkedIn: ugn

UGN, Inc., based in Downers Grove, Illinois, is a private company founded in 1986. It specializes in manufacturing automotive components, particularly focusing on innovative sound solutions tailored for the automotive industry. UGN's product range includes carpets, mudguards, and various insulators, which are critical for enhancing vehicle acoustics and overall passenger comfort. The company operates several facilities across North America, including locations in Indiana, Kentucky, Michigan, Ohio, Tennessee, and Mexico, which allows them to effectively serve major vehicle manufacturers. UGN emphasizes quality and customer satisfaction, and they have developed a reputation for their collaborative approach in product development, working closely with clients from the early stages of vehicle design. Their commitment to innovation is evident in their advanced manufacturing capabilities and their focus on creating customized solutions that meet evolving market demands.


6. Dynamic Manufacturing, Inc.


Dynamic Manufacturing, Inc., based in Hillside, Illinois, has been a key player in the automotive sector since its inception in 1955. The company specializes in the remanufacturing of drivetrain components, including transmissions, torque converters, and transfer cases. They also have a dedicated facility for electric vehicle battery testing, reflecting their adaptation to the evolving automotive landscape. With a workforce of approximately 285 employees, Dynamic Manufacturing operates multiple facilities that focus on remanufacturing, machining, and logistics management. Their commitment to sustainability is evident as they operate on 100% renewable energy. The company has been recognized for its quality and service, notably receiving the Supplier of the Year award from General Motors multiple times. This recognition underscores their reliability and expertise in the automotive manufacturing space.


7. Champion Laboratories

  • Website: champlabs.com
  • Ownership type: Corporate
  • Headquarters: Albion, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: July 2020
  • Founded year: 1936
  • Headcount: 1001-5000
  • LinkedIn: champion-laboratories

Champion Laboratories Inc., based in Albion, Illinois, has been a prominent player in the automotive filter manufacturing sector since its inception in 1936. The company specializes in producing high-quality filtration products tailored for both light-duty and heavy-duty vehicles. Champion Laboratories serves a wide array of clients, including automotive manufacturers, retailers, and fleet operators, ensuring optimal engine performance and reliability through their products. Their commitment to quality is underscored by a comprehensive Quality Assurance program, which has earned them numerous accolades from original equipment and private label customers. Champion Laboratories operates several well-known brands, including Champ, Luber-Finer, and PetroClear, and is recognized as one of the largest private label automotive filter suppliers. The company has also made significant investments in expanding its manufacturing capabilities, reflecting its ongoing commitment to meeting the demands of the automotive industry.


8. Midwest Air Technologies, INC.

  • Website: midwest-air.com
  • Ownership type: Family Owned
  • Headquarters: Lincolnshire, Illinois, United States (USA)
  • Employee distribution: United States (USA) 50%, China 50%
  • Founded year: 1984
  • Headcount: 1-10
  • LinkedIn: midwest-air-technologies-inc.

Midwest Air Technologies, INC. is a family-owned company based in Lincolnshire, Illinois, founded in 1984. It operates under MAT Holdings, Inc., which is known for its manufacturing capabilities in automotive components and consumer products. The company specializes in providing OEM and aftermarket automotive parts, particularly in braking and suspension systems. Their product range includes shocks, struts, brake pads, and other essential components for passenger and commercial vehicles. With a workforce split between the United States and China, Midwest Air Technologies serves a global market, emphasizing quality and innovation in their manufacturing processes. Their commitment to research and development supports their ability to meet the evolving needs of automotive manufacturers and consumers alike.


9. Sequoia Automatic, Inc.

  • Website: sequoiaweb.com
  • Ownership type: Private
  • Headquarters: Crystal Lake, Illinois, United States (USA)
  • Employee distribution: United States (USA) 66%, Mexico 34%
  • Founded year: 1958
  • Headcount: 51-200
  • LinkedIn: sequoia-automatic

Sequoia Automatic, Inc., based in Crystal Lake, Illinois, has been a key player in the automotive manufacturing sector since its founding in 1958. The company focuses on high-volume production machining specifically for automotive climate control components. With a workforce of around 29 employees, Sequoia Automatic has built a reputation for precision-engineered parts that meet the stringent demands of global Tier-1 and Tier-2 climate control providers. Their manufacturing processes are supported by a robust Quality Management System certified to IATF 16949:2016, ensuring that they maintain high standards of quality and efficiency. Over the past decade, the company has experienced significant growth, achieving a compound annual growth rate of 15% since 2005. This growth is attributed to their commitment to quality, customer support, and the ability to adapt to dynamic production schedules, making them a reliable partner in the automotive industry.


10. Connor Manufacturing

  • Website: connorms.com
  • Ownership type: Corporate
  • Headquarters: Itasca, Illinois, United States (USA)
  • Employee distribution: Mexico 46%, Malaysia 22%, United States (USA) 20%, Other 13%
  • Latest funding: October 2023
  • Founded year: 1913
  • Headcount: 501-1000
  • LinkedIn: connor-manufacturing-services

Connor Manufacturing, established in 1913, is a precision metal fabrication and stamping company based in Itasca, Illinois. With a workforce of approximately 127 employees, the company operates globally, with manufacturing facilities in the USA, Mexico, China, and Malaysia. Connor specializes in providing high-quality components and assembly solutions tailored for various industries, including automotive, heavy truck, and consumer electronics. In the automotive sector, Connor plays a crucial role by supplying components for battery management systems, safety and sensor systems, and infotainment technologies. Their advanced manufacturing capabilities, such as CNC machining and automated assembly, enable them to meet the stringent quality and performance standards required by OEMs and Tier 1 suppliers. Connor's commitment to quality is underscored by its adherence to ISO 9001 and IATF 16949 standards, ensuring that their products meet the rigorous demands of the automotive industry.


11. Eakas Corporation

  • Website: eakas.com
  • Ownership type: Private
  • Headquarters: Peru, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1990
  • Headcount: 51-200
  • LinkedIn: eakas-corporation

Eakas Corporation, established in 1990 and located in Peru, Illinois, is an automotive parts manufacturer that specializes in both functional and decorative components for vehicles. The company offers a comprehensive range of services, including engineering, molding, painting, chrome plating, and assembly. This integrated approach allows Eakas to streamline production processes and ensure quality assurance, making it a reliable partner for automotive manufacturers across the United States. Eakas produces a variety of products, such as door handles, body side moldings, and bumper fascias, catering to the specific needs of their clients. With a workforce of approximately 109 employees, the company has expanded its facilities significantly, doubling the size of its Peru location to accommodate growing demand. Eakas is also part of a larger network, with connections to Sakae Riken Kogyo in Japan, enhancing its global presence. The company is committed to environmental safety and quality, as evidenced by its ISO 14001:2015 and IATF 16949:2016 registrations, which reflect its dedication to maintaining high standards in manufacturing and environmental practices.


12. Metform

  • Website: metformjobs.com
  • Ownership type: Private
  • Headquarters: Savanna, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1976
  • Headcount: 201-500
  • LinkedIn: metform-mfcs

Metform, based in Savanna, Illinois, has been a key player in the automotive manufacturing sector since its inception in 1976. The company specializes in forging machined parts that are integral to advanced automotive transmissions and heavy-duty trucks. By supplying critical components to major vehicle manufacturers, Metform plays a vital role in enhancing vehicle performance and reliability. Their commitment to quality and continuous improvement is evident in their operations, which focus on delivering high-quality products that meet the rigorous demands of the automotive industry. With a workforce of around 500 employees, Metform is dedicated to driving value for its customers and maintaining a strong presence in the automotive supply chain.


13. Applied Acoustics International (AAI)

  • Website: aainvh.com
  • Ownership type: Private Equity
  • Headquarters: Chicago Heights, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: February 2016
  • Founded year: 1986
  • Headcount: 51-200
  • LinkedIn: applied-acoustics-international-aai

Applied Acoustics International (AAI), based in Chicago Heights, Illinois, has been a dedicated manufacturer of noise, vibration, and harshness (NVH) solutions for the automotive industry since its founding in 1986. The company produces a variety of products designed to enhance vehicle quality by minimizing interior noise, which is critical for customer satisfaction. AAI's offerings include advanced damper and barrier materials that are applied to various parts of vehicles, such as floors, trunks, roofs, and doors. These products help to dampen and reflect vibrations and road noise, ensuring a quieter ride. AAI has established itself as a trusted supplier to automotive manufacturers, meeting competitive cost targets and adhering to strict quality standards. Their commitment to innovation and efficiency has allowed them to maintain a strong market position within the NVH industry.


14. 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 focuses on providing advanced solutions such as Electric Power Assisted Steering (EPS), Adaptive Front Lighting (AFS), and Fuel Delivery Modules (FDM). With a commitment to enhancing vehicle safety and performance, DeAmertek serves over 25 OEM customers globally. Their manufacturing capabilities are supported by a world-class facility and a robust supply chain network. DeAmertek is also recognized for its research and development efforts, particularly in the field of Advanced Driver Assistance Systems (ADAS), which aim to improve road safety. The company is ISO/IATF 16949, ISO 9001, and ISO 14001 certified, reflecting its dedication to quality and environmental management. DeAmertek operates primarily in the United States, with a smaller presence in India, and is a minority-owned business.


15. Kay Manufacturing Co.

  • Website: kaymfg.com
  • Ownership type: Private
  • Headquarters: Calumet City, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Latest funding: Other (Debt), August 2015
  • Founded year: 1946
  • Headcount: 201-500
  • LinkedIn: kay-manufacturing-company-inc-

Kay Manufacturing Co., established in 1946 and based in Calumet City, Illinois, is a precision parts manufacturer that specializes in high-quality components for the automotive and aerospace industries. The company prides itself on its innovative manufacturing processes and rigorous quality assurance practices, which are essential for meeting the demanding standards of its business customers. Kay Manufacturing focuses on collaboration with clients to develop tailored manufacturing strategies that ensure timely and cost-effective delivery of precision-engineered solutions. Their extensive capabilities include producing tight-tolerance parts with tolerances as small as 3 microns, and they operate a 120,000 square foot facility that runs 24 hours a day to accommodate high-volume production needs. Notably, Kay Manufacturing has experience in creating components for drivetrain systems, such as torque converters and transmission parts, which are critical to automotive performance. Their commitment to continuous improvement and customer service further enhances their standing in the automotive manufacturing sector.


16. UCAL Systems, Inc dba AMTEC Precision Products

  • Website: ucalsystems.com
  • Ownership type: Private
  • Headquarters: Elgin, Illinois, United States (USA)
  • Employee distribution: United States (USA) 89%, India 11%
  • Founded year: 1954
  • Headcount: 51-200
  • LinkedIn: amtec-precision

UCAL Systems, Inc., formerly known as AMTEC Precision Products, is a manufacturer based in Elgin, Illinois, specializing in precision machined components for various industries, with a strong focus on automotive and aerospace applications. Founded in 1954, the company has built a reputation for quality and efficiency in manufacturing. UCAL produces a wide range of products, including fuel injection components, drivetrain parts, and hydraulic systems, catering primarily to automotive OEMs and Tier 1 suppliers. The company operates a fully equipped facility that emphasizes in-house machining capabilities, ensuring high standards of quality control. UCAL is certified under several quality management standards, including ISO 9001:2015 and IATF 16949:2016, which underscores its commitment to meeting stringent industry requirements. With a skilled workforce averaging 14 years of tenure, UCAL Systems is well-positioned to address the challenges of precision manufacturing in the automotive sector.


17. Mattoon Precision Manufacturing, Inc.


Mattoon Precision Manufacturing, Inc. (MPMI), founded in 1989, is a private automotive parts manufacturer based in Mattoon, Illinois. The company specializes in producing precision components for various automotive systems, including drivetrain, suspension, braking, and HVAC systems. MPMI serves a range of prominent original equipment manufacturers (OEMs), establishing itself as a trusted Tier 1 and Tier 2 supplier. The firm emphasizes quality, cost-effectiveness, and timely delivery, which are critical factors in the automotive industry. Over the years, MPMI has received multiple awards for quality and delivery from major clients such as Toyota, Honda, and Subaru, underscoring its commitment to excellence. The company is part of the Nukabe Group, which allows it to leverage additional resources and capabilities in manufacturing and quality control. MPMI is dedicated to sustainability and ethical practices, actively working to minimize its environmental impact and promote inclusivity within its supply chain.


18. Climco Coils

  • Website: climco.com
  • Ownership type: Private
  • Headquarters: Morrison, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1992
  • Headcount: 51-200
  • LinkedIn: climco-coils

Climco Coils, based in Morrison, Illinois, is a private manufacturer established in 1992, although its roots trace back over seventy years. The company specializes in the design and production of engineered coils, stators, solenoids, and actuators, serving key markets such as heavy trucks, mobile hydraulics, SUVs, and electric vehicles. Climco Coils prides itself on its ability to provide customized solutions tailored to specific customer applications. Their manufacturing capabilities include solenoid design, magnetic modeling, precision machining, and automated testing, all conducted in a clean and efficient facility. With a workforce of around 26 employees, Climco emphasizes a collaborative approach, organizing production into manufacturing cells where cross-trained teams focus on specific customer needs. This operational strategy, combined with their extensive experience, positions Climco Coils as a significant contributor to the automotive sector.


19. CDI Corp.

  • Website: cdi-corp.com
  • Ownership type: Private
  • Headquarters: Chicago, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1997
  • Headcount: 11-50
  • LinkedIn: cdi-corp-

CDI Corp., founded in 1997 and based in Chicago, Illinois, operates from a 16,000 sq. ft. facility. The company is dedicated to producing automotive decals and accessories, shipping millions of products annually. CDI Corp. prides itself on quality and customer service, manufacturing all products in-house using American-made materials. With a workforce of over 45 employees, the company emphasizes a family-oriented culture and community involvement, including initiatives like food drives and summer cookouts. CDI Corp. also manages multiple brands, showcasing its ability to cater to various markets, although its primary focus remains on automotive-related products rather than broader manufacturing activities.


20. Thermoflex Corporation

  • Website: thermoflexcorp.com
  • Ownership type: Family Owned
  • Headquarters: Waukegan, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1953
  • Headcount: 51-200
  • LinkedIn: thermoflex-corporation

Thermoflex Corporation, founded in 1953 and based in Waukegan, Illinois, is a family-owned business specializing in automotive accessories. The company manufactures high-quality floor mats, cargo protectors, and exterior trim, catering to both automotive manufacturers and consumers. With a focus on innovative designs and sustainable materials, Thermoflex has built a strong reputation over its 60-plus years in the industry. Their production processes utilize state-of-the-art injection molding technology, allowing for efficient and precise manufacturing. The company is committed to quality and customer satisfaction, as evidenced by their ISO certifications and various industry awards. Thermoflex's dedication to environmental responsibility is reflected in their use of recyclable materials and their ongoing efforts to innovate in material science, making them a noteworthy participant in the automotive sector.


21. Rocknel Fastener

  • Website: rocknel.com
  • Ownership type: Private
  • Headquarters: Rockford, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1989
  • Headcount: 51-200
  • LinkedIn: rocknel-fastener

Rocknel Fastener, Inc., founded in 1989, is a manufacturer based in Rockford, Illinois, specializing in high-strength automotive fasteners. The company operates as a wholly owned subsidiary of Meira, Inc., which is headquartered in Nagoya, Japan. Rocknel Fastener serves a variety of major automotive manufacturers, providing essential components for the assembly of automobile frames, engines, and suspension systems. Their product range includes sems, special engine bolts, and unique fasteners designed for specific applications. The company boasts advanced manufacturing capabilities, including cold forming technology, heat treatment, and in-house lab testing to ensure product quality. Rocknel Fastener is committed to maintaining high standards, as evidenced by their IATF 16949:2016 certification, which underscores their dedication to quality management in the automotive sector. With a facility spanning over 860,000 square feet, Rocknel Fastener employs a skilled workforce and continues to innovate in fastener technology, making them a significant player in the automotive supply chain.


22. Fabrik Molded Plastics

  • Website: fabrikind.com
  • Ownership type: Private
  • Headquarters: Mchenry, Illinois, United States (USA)
  • Employee distribution: United States (USA) 100%
  • Founded year: 1980
  • Headcount: 201-500
  • LinkedIn: fabrik-molded-plastics

Fabrik Molded Plastics, Inc., based in McHenry, Illinois, has been a significant player in the automotive manufacturing sector since its founding in 1980. The company specializes in the production of molded plastics, focusing primarily on components for automotive lighting. Their capabilities include injection molding, scientific plastic injection molding, and custom automation services. Fabrik is known for its high-quality standards and expertise in lens-grade materials, making it a trusted supplier for automotive manufacturers. They produce a variety of products, including LED automotive taillight lenses and other critical lighting components. The company emphasizes sustainability and quality assurance, adhering to industry standards such as ISO/TS 16949 and ISO 9001. Fabrik Molded Plastics is dedicated to meeting the evolving needs of the automotive industry, ensuring that their products are reliable and durable for vehicle applications.



Automotive Manufacturing Insights: Key Companies in Illinois


CompanyHeadquarterSizeFoundedOwnership
Wanxiang America CorporationElgin, Illinois, United States (USA)1-101993Corporate
AISIN Manufacturing IllinoisMarion, Illinois, United States (USA)1001-50002002Private
MAT Holdings, Inc.Long Grove, Illinois, United States (USA)10001+1984Family Owned
North American Lighting, Inc.Paris, Illinois, United States (USA)1001-50001983Private
UGN, Inc.Downers Grove, Illinois, United States (USA)1001-50001986Private
Dynamic Manufacturing, Inc.Hillside, Illinois, United States (USA)1001-50001955Corporate
Champion LaboratoriesAlbion, Illinois, United States (USA)1001-50001936Corporate
Midwest Air Technologies, INC.Lincolnshire, Illinois, United States (USA)1-101984Family Owned
Sequoia Automatic, Inc.Crystal Lake, Illinois, United States (USA)51-2001958Private
Connor ManufacturingItasca, Illinois, United States (USA)501-10001913Corporate
Eakas CorporationPeru, Illinois, United States (USA)51-2001990Private
MetformSavanna, Illinois, United States (USA)201-5001976Private
Applied Acoustics International (AAI)Chicago Heights, Illinois, United States (USA)51-2001986Private Equity
DeAmertek CorporationLombard, Illinois, United States (USA)501-10001977Private
Kay Manufacturing Co.Calumet City, Illinois, United States (USA)201-5001946Private
UCAL Systems, Inc dba AMTEC Precision ProductsElgin, Illinois, United States (USA)51-2001954Private
Mattoon Precision Manufacturing, Inc.Mattoon, Illinois, United States (USA)51-2001989Private
Climco CoilsMorrison, Illinois, United States (USA)51-2001992Private
CDI Corp.Chicago, Illinois, United States (USA)11-501997Private
Thermoflex CorporationWaukegan, Illinois, United States (USA)51-2001953Family Owned
Rocknel FastenerRockford, Illinois, United States (USA)51-2001989Private
Fabrik Molded PlasticsMchenry, Illinois, United States (USA)201-5001980Private


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