112 indexable Auto Components companies headquartered in Illinois, United States, ranked by total equity funding and recent funding momentum. Combined disclosed equity funding of $439M across 3 funded companies.
| # | Company | Funding | Valuation | Stage | Latest round | Employees | Founded | Momentum |
|---|---|---|---|---|---|---|---|---|
| 1 |
Tenneco
Manufacturer and distributor of clean air and ride performance products to OEMs |
$254.7M | — | Acquired | Grant (prize money) Jan 2023 | 2,440 | 1999 | — |
| 2 |
Elgin Industries
Engine and chassis component manufacturer delivering engineered excellence for diverse industries |
$34.3M | — | Series B | Series B Oct 2022 | 164 | 1919 | — |
| 3 |
Optimas Solutions
Manufacturer and supplier of fasteners |
$150M | — | Acquired | Conventional Debt Jun 2015 | 569 | 2015 | — |
| 4 |
Titan International
Manufacturer and supplier of tires and wheels to OEMs and aftermarket |
— | — | Public | Post IPO Dec 2019 | 1,246 | 1890 | — |
| 5 |
Plews & Edelmann
Power steering components manufacturer providing total solutions and superior customer service |
— | — | Acquired | PE Aug 2016 | 93 | 1909 | — |
| 6 |
Flexitech
Global leader in innovative automotive and motorcycle brake and cooling hose solutions |
— | — | Acquired | Conventional Debt Oct 2015 | 1,200 | 1989 | — |
| 7 |
MacLean-Fogg
Global manufacturer providing innovative solutions for automotive and power utility marketplaces |
— | — | Funding Raised | Conventional Debt Nov 2013 | 1,428 | 1925 | — |
| 8 |
Advanced Filtration Systems
High-efficiency fluid filter design and manufacturing for diverse applications |
— | — | Deadpooled | — | 238 | 1986 | — |
| 9 |
aeromotive
Aeromotive Services Inc. designs, prototypes, manufactures & remanufactures wire assemblies, distributes quality interconnect components. |
— | — | Private | — | 17 | 1996 | — |
| 10 |
Aetna Bearing
Manufacturer and supplier of bearings and bearings assemblies |
— | — | Acquired | — | — | 1916 | — |
| 11 |
ags technology
AGS Technology produces high-performance virgin and recycled custom injection molded products. |
— | — | Private | — | 16 | 1995 | — |
| 12 |
allstar fasteners
Allstar Fasteners is a supplier of a wide variety of fasteners and provides engineering and shipping services. |
— | — | Acquired | — | 50 | 1977 | — |
| 13 |
Alltech Automotive
Manufaturer of OE & aftermarket auto-parts |
— | — | Unfunded | — | 12 | 2006 | — |
| 14 |
american rotors
American Rotors is a manufacturing company that provides casting, grinding, stacking, and de-gating services. |
— | — | Deadpooled | — | 100 | 1960 | — |
| 15 |
amic global
Amic Global supplies custom-manufactured metal parts, rubber, and plastic. |
— | — | Acquired | — | 9 | 2004 | — |
| 16 |
applied acoustics international
AAI is a Tier 1 supplier of automotive noise, vibration, and harshness (NVH) solutions to the automotive industrty. |
— | — | Acquired | — | 200 | 1986 | — |
| 17 |
arens controls company
Curtiss-Wright Industrial Group, which includes the legacy brands of Arens Controls, located in Arlington Heights. |
— | — | Acquired | — | 120 | 1939 | — |
| 18 |
Arrow
Arrow Gear Company is an aviation & aerospace company that produces spiral bevel, straight bevel gears, and stock gears, |
— | — | Acquired | — | 946 | 1947 | — |
| 19 |
atf
ATF provide engineering cold-formed and machined components. |
— | — | Acquired | — | 140 | 1946 | — |
| 20 |
ATF
Manufacturer and supplier of fasteners, assemblies, and automotive components |
— | — | Unfunded | — | — | 1946 | — |
| 21 |
Atturo
Manufacturer & supplier of automotive tyres |
— | — | Unfunded | — | 18 | 2009 | — |
| 22 |
Bergstrom
Thermal management solutions specialist, designing and manufacturing air conditioning systems globally |
— | — | Unfunded | — | 532 | 1949 | — |
| 23 |
Big Bolt
Fastener supplier providing custom, quick-turnaround manufacturing for diverse industries |
— | — | Acquired | — | 52 | 1975 | — |
| 24 |
Brake Parts
Manufacturer of brake system components |
— | — | Acquired | — | 666 | 2013 | — |
| 25 |
Budnick Converting
Custom adhesive tape converting solutions for diverse industries, enhancing productivity |
— | — | Unfunded | — | 121 | 1952 | — |
| 26 |
burns machine company
Burns Machine Company manufactures metal components and machinery. |
— | — | Private | — | — | 1917 | — |
| 27 |
Camcraft
Manufacturer and supplier of high-precision components |
— | — | Unfunded | — | 347 | 1950 | — |
| 28 |
Cellusuede Products
Manufacturer and supplier of interior systems |
— | — | Unfunded | — | 28 | 1938 | — |
| 29 |
Champion Laboratories
Automotive filtration solutions provider, manufacturing quality filters for diverse industry needs |
— | — | Acquired | — | 909 | 1936 | — |
| 30 |
Chemtech Plastics
Precision injection molding for automotive, medical, electronics, and optical industries |
— | — | Unfunded | — | — | 1982 | — |
| 31 |
chicago fastener
Chicago Fastener is a cold headed bolt manufacturer. |
— | — | Acquired | — | — | 1983 | — |
| 32 |
Chicago Rivet & Machine
Manufacturer and supplier of rivets |
— | — | Public | — | 208 | 1920 | — |
| 33 |
colson group
Colson Group is the manufacturer and distributor of caster and wheel products in the world. |
— | — | Private | — | 1,600 | 1878 | — |
| 34 |
Deringer-Ney
Precious metal alloys and precision components for critical applications |
— | — | Unfunded | — | — | 1812 | — |
| 35 |
DieHard
Manufacturer of portable automotive battery chargers |
— | — | Acquired | — | — | 1967 | — |
| 36 |
driv-lok
DRIV-LOK is a press-fit fasteners manufacturer and joining components for design engineers and preferred distributors. |
— | — | Private | — | 56 | 1936 | — |
| 37 |
dudek & bock spring manufacturing
Dudek & Bock Spring Manufacturing Company is a leading manufacturer of custom springs, wire forms, metal stampings, and assemblies. |
— | — | Private | — | 49 | 1946 | — |
| 38 |
eh baare
EH Baare is a manufacturer of wire fan guards and motor mounts and engaged in metal fabrication services. |
— | — | Private | — | — | 1920 | — |
| 39 |
Fabrikind
Custom plastic injection and insert molding manufacturer for various industries |
— | — | Unfunded | — | 124 | 1980 | — |
| 40 |
filtran
Filtran is a filtrations solutions provider for the automotive industry. |
— | — | Acquired | — | 501 | 1899 | — |
| 41 |
Filtran
Manufacturer and supplier of transmission filters to OEMs and aftermarket |
— | — | Acquired | — | — | 1899 | — |
| 42 |
Freedman Seating Company
Transportation seating and safety solutions for diverse vehicle applications |
— | — | Acquired | — | — | 1894 | — |
| 43 |
Gaither Tool
Manufacturer of tools & systems for servicing & maintaining tires and wheel assemblies |
— | — | Unfunded | — | — | 1988 | — |
| 44 |
General Truck Parts
Manufacturer of multiple trucks parts and accessories |
— | — | Unfunded | — | 129 | 1970 | — |
| 45 |
Hendrickson
Global leader in heavy-duty truck and trailer suspension systems |
— | — | Unfunded | — | 40 | 1913 | — |
| 46 |
hoerr racing products
Hoerr Racing Products is an online marketplace that provides parts & accessories for automotive industries. |
— | — | Private | — | 37 | 1960 | — |
| 47 |
horizon hobby
Horizon Hobby develops, markets, and distributes radio control hobby products; model trains; and educational, toy, and other hobby products. |
— | — | Acquired | — | 700 | 1985 | — |
| 48 |
HP Tuners
Provider of automotive components and other solutions |
— | — | Unfunded | — | 115 | 2003 | — |
| 49 |
hrb industries
HRB Industries is a manufacturing company that provides metal casting, assembling, sheet metal, CNC machining, and fabrication services. |
— | — | Private | — | — | 1998 | — |
| 50 |
Husky Liners
Automotive aftermarket products protecting vehicles inside and out with industry-defining quality |
— | — | Acquired | — | 24 | 1988 | — |
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, th
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 pro
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.
Manufacturer and supplier of tires and wheels to OEMs and aftermarket
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 exte
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
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
High-efficiency fluid filter design and manufacturing for diverse applications. They are industry leaders focused on individual component longevity. They utilize cutting-edge technologies, including computer-integrated manufacturing techniques, to produce high-quality filters. Their products are respected worldwide for exceeding high-quality and functionality standards, even under heavy-duty applications and difficul
Designer and manufacturer of wire assemblies for the automotive and aviation industry. The company offers wire harness remanufacturing and reconditioning, custom manufacturing of wire assemblies, creating and origination of universal connectors and installation services, enabling clients to configure complex electrical products.
Aetna Bearing Company is a manufacturer and supplier of bearings and bearings assemblies. Manufactures clutch release bearings, flat belt, v-belt, sprocket & belt idlers and thrust ball bearings for automotive, agricultural, aircraft, and industrial.
Manufacturer of custom injection molded components for construction, wastewater, consumer and automotive industries. The company's components are manufactured from recycled plastics without compounding them in an extruder.
Manufacturer of fasteners based in Elk Grove Village, Illinois. The company offers fasteners with various types of drive styles, head styles, materials, types and custom fasteners as per requirement.
Advantage Capital
American Industrial Partners
Appaloosa Management
Ares Management
Breitlane
Court Square
Economy And Finance
Enertech
Europa
GMB Capital Partners
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Getaneh Global
Gov Wales
Rankings are computed by Radar (Fliar BI) from the Radar company master and are updated periodically. Funding and momentum scores use disclosed equity-funding data only. Figures may lag private rounds. Last updated 2026-06-21.
