2554 indexable Auto Components companies headquartered in United States, ranked by total equity funding and recent funding momentum. Combined disclosed equity funding of $13.3B across 136 funded companies, including 3 unicorns.
| # | Company | Funding | Valuation | Stage | Latest round | Employees | Founded | Momentum |
|---|---|---|---|---|---|---|---|---|
| 1 |
Divergent
Unicorn Developer of adaptive production system for complex structures manufacturing |
$578M | — | Series E | Venture Debt Sep 2025 | 136 | 2014 | ↑ Active |
| 2 |
Cummins
Manufacturer of gas-powered construction equipment, fuel systems, turbochargers, and braking systems |
$284.5M | — | Public | Grant (prize money) Sep 2025 | 73,600 | 1919 | ↑ Active |
| 3 |
BorgWarner
Manufacturer of multiple automotive parts and accessories |
$274.4M | — | Acquired | Grant (prize money) Mar 2025 | 5,809 | 1928 | ↑ Active |
| 4 |
Solid Power
Developer of solid-state lithium-ion battery |
$182M | — | Public | Grant (prize money) Jan 2025 | 270 | 2011 | ↑ Active |
| 5 |
Safire Technology Group
Developer of hybrid-state liquid-to-solid shear thickening battery safety technology |
$10.9M | — | Seed | Seed Dec 2025 | 3 | 2020 | ↑ Active |
| 6 |
IBC
Platform offering prismatic lithium-ion cells for mobility and energy storage |
$35M | — | Series A | Series A Jun 2025 | 6 | 2022 | ↑ Active |
| 7 |
Conifer
Provider of electric conversion kits for multiple categories of vehicles |
$20M | — | Seed | Seed Apr 2025 | — | 2022 | ↑ Active |
| 8 |
Azak
Developer of powertrain system for multiple categories of electric vehicles |
$7.5M | — | Series A | Series A Jun 2025 | 1 | 2022 | ↑ Active |
| 9 |
Viatec
Offers idling system for utility trucks |
$4.6M | — | Series B | Series B Jul 2025 | 22 | 2015 | ↑ Active |
| 10 |
C-Motive
Revolutionizing motor technology with efficient, gearless electrostatic motors for diverse applications |
$2.8M | — | Series A | Series A May 2025 | 21 | 2012 | ↑ Active |
| 11 |
One
Unicorn Manufacturer of battery cells, modules, and energy storage systems |
$390M | $1.2B as of 2023 |
Series B | Series B Sep 2023 | 157 | 2020 | — |
| 12 |
J Tech
Manufacturer of attenuator trucks, pattern trucks, safety baskets, and parts |
$2.2M | — | Funding Raised | Grant (prize money) May 2025 | 52 | 1993 | ↑ Active |
| 13 |
ClearMotion
Developer of proactive ride system improving automotive travel and safety |
$306.6M | — | Series E | Series E Mar 2023 | 172 | 2008 | — |
| 14 |
Tenneco
Manufacturer and distributor of clean air and ride performance products to OEMs |
$254.7M | — | Acquired | Grant (prize money) Jan 2023 | 2,440 | 1999 | — |
| 15 |
The Carlstar Group
Manufacturer and supplier of tires to aftermarket |
$655M | — | Acquired | Conventional Debt Jul 2022 | 1,361 | 1995 | — |
| 16 |
Sirris
Manufacturer of aftermarket suspension components and related parts for E-Moto bikes |
$325K | — | Seed | Seed Aug 2025 | — | 2023 | ↑ Active |
| 17 |
Steinmetz
Manufacturer of high-efficiency electric vehicle motor controllers |
$500K | — | Seed | Seed 2025 | — | 2024 | ↑ Active |
| 18 |
Holley
Manufacturer and supplier of automotive fuel systems |
$825M | — | Public | Conventional Debt Nov 2021 | 1,622 | 1903 | — |
| 19 |
Bridgestone Americas
Manufacturer and supplier of tyres |
$1.1B | — | Funding Raised | Conventional Debt Feb 2021 | 1,337 | 1990 | — |
| 20 |
QuantumScape
Developer of solid-state lithium-metal battery technology for electric vehicle applications |
$1B | — | Public | Post IPO Sep 2020 | 850 | 2010 | — |
| 21 |
Novelis
Unicorn Manufacturer and supplier of flat-rolled aluminum products to OEMs |
$1.1B | $12B as of 2018 |
Acquired | Conventional Debt Jan 2020 | 71 | 2005 | — |
| 22 |
Accuride Corporation
Manufacturer and suppliers of wheels and wheel-end components to OEMs |
$1.2B | — | Acquired | Post IPO Jul 2010 | 431 | 1986 | — |
| 23 |
NN
Design and manufacture high-precision metal & plastic components |
$165.8M | — | Public | Grant (prize money) May 2022 | 1,257 | 1980 | — |
| 24 |
Truck Hero
Premier online retailer for truck and automotive accessories and parts |
$1B | — | Acquired | Conventional Debt May 2017 | 5,000 | 2007 | — |
| 25 |
Harman International
Provider of infotainment and audio solutions for multiple sectors |
$450.6M | — | Acquired | Post IPO Jul 2019 | 9,000 | 1980 | — |
| 26 |
Challenge Manufacturing
Employee-owned automotive supplier delivering quality through innovation, growth, and dedication |
$330M | — | Funding Raised | Conventional Debt Feb 2021 | 2,624 | 1981 | — |
| 27 |
Enevate
Developer of lithium-ion batteries |
$191M | — | Series E | Series E Feb 2021 | 72 | 2006 | — |
| 28 |
Exide
Manufacturer & supplier of automotive power storage systems |
$407.5M | — | Acquired | Conventional Debt Jul 2019 | 354 | 1888 | — |
| 29 |
Ionblox
Developer of lithium-ion battery technology for automotive and aviation applications |
$56M | — | Series B | Series B Feb 2023 | 22 | 2017 | — |
| 30 |
MayMaan
Manufacturer of combustion engines and generators |
$30M | — | Series A | Series A May 2023 | 10 | 2014 | — |
| 31 |
Motorcar Parts
Global leader in remanufactured auto parts, promoting sustainability and quality |
$284M | — | Public | Conventional Debt Jun 2019 | 5,600 | 2000 | — |
| 32 |
USCAR
Manufacturer of automotive aftermarket accessories |
$246.4M | — | Funding Raised | Grant (prize money) Jan 2015 | 14 | 1992 | — |
| 33 |
Remora
Provider of carbon capture and revenue-sharing solutions for transportation |
$5.6M | — | Series A | Series A Feb 2024 | 48 | 2020 | — |
| 34 |
Elgin Industries
Engine and chassis component manufacturer delivering engineered excellence for diverse industries |
$34.3M | — | Series B | Series B Oct 2022 | 164 | 1919 | — |
| 35 |
Achates Power
Manufacturer of engine for vehicles |
$107.5M | — | Series D | Grant (prize money) Mar 2019 | 41 | 2004 | — |
| 36 |
Adduxi
Experts in complex plastic parts and assemblies for diverse industries |
$48M | — | Series B | Grant (prize money) Jan 2022 | 34 | 1996 | — |
| 37 |
Delphi Technologies
Manufacturer and supplier of automotive parts to OEMs |
$104.7M | — | Acquired | Grant (prize money) Sep 2017 | 50,000 | 1994 | — |
| 38 |
Bell Helmets
Manufacturer of motorcycle and bicycle helmets and related apparel |
$215M | — | Acquired | PE 1998 | 1,001 | 1954 | — |
| 39 |
Mobex Global
Manufacturer of automotive fabrication parts |
$150M | — | Funding Raised | Conventional Debt Sep 2018 | 1,500 | 1997 | — |
| 40 |
Airxcel
RV industry premier designer, manufacturer, and distributor of functional products |
$160M | — | Acquired | PE Nov 2014 | 1,600 | 1989 | — |
| 41 |
Optimas Solutions
Manufacturer and supplier of fasteners |
$150M | — | Acquired | Conventional Debt Jun 2015 | 569 | 2015 | — |
| 42 |
Sage Automotive Interiors
Innovative automotive interior solutions: design, manufacture, and global supply |
$9.7M | — | Acquired | Grant (prize money) Feb 2023 | 1,018 | 2009 | — |
| 43 |
Axion Power
Expert reviews of solar and wind energy products for residential use |
$75.7M | — | Public | Post IPO Nov 2015 | 7 | 2003 | — |
| 44 |
HummingbirdEV
Developer of powertrain system for commercial vehicles |
$6M | — | Series A | Series A 2023 | — | 2015 | — |
| 45 |
GT Technology
Manufacturer and supplier of automotive component |
$27.9M | — | Acquired | Conventional Debt Dec 2021 | 223 | 1987 | — |
| 46 |
Webasto
Manufacturer and supplier of automotive components |
$667.9K | — | Funding Raised | Grant (prize money) Apr 2024 | 113 | 1986 | — |
| 47 |
Torev Motors
Manufacturer of motors for electric vehicles |
$550K | — | Seed | Seed May 2024 | 2 | 2022 | — |
| 48 |
Cooper Standard
Global supplier of sealing, fluid handling systems, and material science solutions |
$51.1M | — | Acquired | Conventional Debt Apr 2020 | 409 | 1960 | — |
| 49 |
GNS America
Automotive supplier specializing in hot and conventional stamped components and assemblies |
$30M | — | Funding Raised | Conventional Debt Feb 2021 | 299 | 2009 | — |
| 50 |
Huron
Manufacturer of complex tubular assemblies and precision machined products for the automotive industry |
$57.5M | — | Acquired | Conventional Debt Aug 2015 | 322 | 1943 | — |
Developer of adaptive production system for complex structures manufacturing. The system uses AI-enabled engineering software to optimize structure design based on performance and manufacturing constraints. Manufacturing instructions are sent to 3D printers to materialize individual printed nodes with application-specific alloys. A universal robotic assembly process assembles the printed nodes.
Manufacturer of gas-powered construction equipment, fuel systems, turbochargers, and braking systems. The platform offers users various diesel and natural gas-powered engines for heavy and medium-duty trucks, buses, recreational vehicles, agricultural, and construction equipment, mining, marine, oil and gas, and governmental equipment markets. In 2022, the company recorded annual revenues of $28.07B and a net profit
BorgWarner is a manufacturer and supplier of propulsion systems to OEMs and aftermarket companies. Manufactures ignition technology components, starters, alternators, thermal management systems, transmission technology components, electric boosting technology components, hybrid architecture, EV transmissions, electric drive motors, and electric drive modules for the automotive industry. In 2022, the company recorded
Developer of solid-state lithium-ion battery. The company cathode, and metallic lithium anode, and is separated by a solid electrolyte layer that claims to offer higher energy density and safer working conditions.
Developer of hybrid-state liquid-to-solid shear thickening battery safety technology. Its patented li-ion shear thickening battery electrolyte additive stops explosion/fire through an instantaneous liquid-to-solid transformation upon mechanical impact and imparts ballistic protection against projectiles. This leads to safer batteries in electric vehicles.
Platform offering prismatic lithium-ion cells for mobility and energy storage. It focuses on cell design and manufacturing for various applications. It provides cells and tailored products to meet specific customer needs. The company offers end-to-end solutions for original equipment manufacturers and materials providers. It operates a pilot facility to test and validate manufacturing scalability.
Provider of electric conversion kits for multiple categories of vehicles. Its conversion kit includes motors, controllers, batteries, and more. It also developed a patented axial flux motor technology with proprietary stator design, enabling high efficiency and power density using widely available ferrite magnets.
Developer of powertrain system for multiple categories of electric vehicles. The platform offers components for operating an electric vehicle are positioned inside and fixed below the center point of the wheel.
Offers idling system for utility trucks
Revolutionizing motor technology with efficient, gearless electrostatic motors for diverse applications. They offer innovative motor solutions using electrostatic technology, eliminating the need for gearboxes and reducing reliance on rare earth magnets and copper. Their motors are optimized for high-torque, low-speed performance, resulting in lower electricity costs, increased uptime, and reduced maintenance. The co
Manufacturer of battery cells, modules, and energy storage systems. The company focuses on producing lithium iron phosphate battery technology for grid storage, rail, and defense applications. It offers cells engineered for demanding environments and fast charging capabilities. The company also provides battery management systems and pack solutions.
Manufacturer of attenuator trucks, pattern trucks, safety baskets, and parts. The company provides equipment for roadway safety, including attenuator and pattern trucks. It offers repair, maintenance, and parts for attenuators. The business also provides fleet logistics services for utility vehicles.
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 2026-06-16.
