Best Auto Components Companies in Illinois, United States
The 112 best Auto Components companies in Illinois, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Tenneco.
Ranked: Best Auto Components companies in Illinois
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Tenneco Manufacturer and distributor of clean air and ride performance products to OEMs | $255M | 40 mo ago | Acquired | Darrell Whitney Chief Human Resources Officer | 1999 | Adobe Experience ManagerApple iCloud MailMicrosoft 365+11 | 343 patents Engine and exhaust component manufacturing, sealing, and welding for performance and durability | — |
| 2 | Optimas Solutions Manufacturer and supplier of fasteners | $150M | 132 mo ago | Acquired | Anesa Chaibi CEO | 2015 | WordPressMySQLPHP+37 | 8 patents Modular coupling systems for precast concrete construction segments | — |
| 3 | Elgin Industries Engine and chassis component manufacturer delivering engineered excellence for diverse industries | $34M | 43 mo ago | Series B | — | 1919 | WordPress Block EditorWordPressMySQL+18 | — | — |
| 4 | Titan International Manufacturer and supplier of tires and wheels to OEMs and aftermarket | — | 78 mo ago | Public | Paul Reitz CEO | 1890 | SitecoreApple iCloud MailMicrosoft 365+26 | 61 patents Patents concentrated in computing, sensing & instrumentation | — |
| 5 | Plews & Edelmann Power steering components manufacturer providing total solutions and superior customer service | — | 118 mo ago | Acquired | Steve Venghaus ex-CEO | 1909 | Wix eCommerceWixSentry+13 | — | — |
| 6 | Flexitech Global leader in innovative automotive and motorcycle brake and cooling hose solutions | — | 128 mo ago | Acquired | Richard Allen CEO | 1989 | WordPressPleskMySQL+26 | 3 patents Deployable space‑based antenna support structures for satellite deployment | — |
| 7 | MacLean-Fogg Global manufacturer providing innovative solutions for automotive and power utility marketplaces | — | 150 mo ago | Funding Raised | Duncan MacLean CEO & President | 1925 | WordPressMySQLPHP+30 | 13 patents Patents concentrated in construction | — |
| 8 | Advanced Filtration Systems High-efficiency fluid filter design and manufacturing for diverse applications | — | — | Deadpooled | James Mock CEO & President | 1986 | WordPress Site EditorWordPressMySQL+20 | — | — |
Top 7 Auto Components companies in Illinois
#1
Acquired · Lake Forest, Illinois · founded 1999 · 2440 employees$254.7Mraised▾
Tenneco is manufactures and distributors of emission control and rides performance products to OEMs. Manufactures of clean air and ride performance products for passenger cars, light trucks, commercial trucks, off-highway equipment, and high horsepower engines. Major clients include BMW, Toyota, Nissan, Daimler, and Jaguar. In 2021, the company recorded annual revenues of $15.37B, and a net loss of $1.52B.In 2021, the company recorded annual revenues of $18.03B and a net profit of $0.03B
- Jan 2023Grant (prize money)$63.2K
- Feb 2021Grant (prize money)$970.6K
- Jan 2021Grant (prize money)$834.2K
- Jun 2020Grant (prize money)$375.7K
#2
Series B · Elgin, Illinois · founded 1919 · 164 employees$34.3Mraised▾
Engine and chassis component manufacturer delivering engineered excellence for diverse industries. A premier manufacturer specializing in engine and chassis components, offering a comprehensive range of products for domestic and import automotive and heavy-duty engines. Expertise extends to original equipment manufacturing and aftermarket solutions, serving vehicle OEMs and engine rebuilders globally. The company provides steering, coil spring, bushings, and suspension technologies for passenger vehicles and commercial trucks. They also offer performance parts combining premium materials and advanced engineering. Additionally, they provide heat treating services and chemical formulations for superior engine performance and durability. The company focuses on quality, innovation, and performance, delivering engineered excellence in every part.
- Oct 2022Series B$34.3M
- Oct 2022Conventional Debt—
#3
Acquired · Glenview, Illinois · founded 2015 · 569 employees$150Mraised▾
Optimas is a manufacturer, supplier and exporter of fasteners. The manufactured components include bolts, screws, sockets, nuts, bushings, sleeves and more for heavy trucks, buses and automotive. Also supplies parts to industries such as medical, power generation and semi-conductor.
- Jun 2015Conventional Debt$150M
#4
Public · Quincy, Illinois · founded 1890 · 1246 employees—raised▾
Manufacturer and supplier of tires and wheels to OEMs and aftermarket
#5
Acquired · Dixon, Illinois · founded 1909 · 93 employees—raised▾
Power steering components manufacturer providing total solutions and superior customer service. They are a leading provider in power steering repair, offering a comprehensive range of products including high-performance hoses, manufactured rack and pinion assemblies, pumps, gear boxes, coolers, filters, and fluids. They focus on quality and durability, with products designed to OE specifications and backed by an extensive warranty. They also offer power steering hoses, seal and rebuild kits, electric power steering drive belt replacement kits, couplings, tools and turbocharger oil lines. They are committed to providing excellent customer service and technical assistance. They operate in the automotive industry, serving both B2B and B2C markets with a focus on repair and maintenance solutions.
- Aug 2016PE—
#6
Acquired · Bloomington, Illinois · founded 1989 · 1200 employees—raised▾
Global leader in innovative automotive and motorcycle brake and cooling hose solutions. Driven by innovation, they develop specific technical solutions for combustion, hybrid, and electric vehicles. Their strengths lie in design, engineering, research, and development, supported by an international network and committed employees. They offer brake hoses, cooling hoses, and spare parts, tailoring services to customer processes. They focus on quality, safety, and environmental responsibility, reflected in certifications. They are a manufacturing company with a global presence, providing solutions for the automotive and motorbike industries.
- Oct 2015Conventional Debt—
#7
Funding Raised · Chicago, Illinois · founded 1925 · 1428 employees—raised▾
Global manufacturer providing innovative solutions for automotive and power utility marketplaces. The company engineers, manufactures, and distributes products across diverse sectors. It operates through multiple business groups, including Fastener Solutions, Engineered Solutions, Plastic Solutions, Additive Solutions, and Mallard Manufacturing. The company focuses on delivering world-class quality and service to its customers. It emphasizes innovation, sustainability, and ethical conduct, reflected in its policies and commitment to its employees. The company provides components and solutions impacting various aspects of daily life, leveraging advanced technologies like 3D printing. It serves key industries with a broad range of engineered products and services.
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Auto Components coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.