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Last updated: January 2026
This directory lists 48 ev component manufacturers across the United States, from advanced Battery Management System (BMS) developers to specialized providers of high voltage interconnects (HVI).
Buyers are solving critical challenges related to vehicle performance, range, and safety. This often involves sourcing sophisticated components like robust thermal management systems (TMS) for optimal battery and motor operation, high-efficiency inverters/converters for power delivery, and bespoke charging modules. The ability to integrate these diverse components seamlessly while adhering to stringent automotive-grade reliability standards is paramount.
Suppliers in this space typically fall into several categories: specialized design-and-build firms focusing on niche, high-value components such as custom sensor arrays or advanced diagnostics; vertically integrated manufacturers offering complete subsystems like e-axles or modular battery packs; and component-level providers specializing in standardized parts such as contactors, fuses, or cooling plates. Distinguishing factors include their design-for-manufacturing (DFM) expertise, scalability of production, and depth of functional safety engineering capabilities.
48 companies nationwide
American Battery Factory manufactures high-performance prismatic Lithium Iron Phosphate (LFP) batteries for various applications. The company focuses on enhancing U.S. energy security by producing safe, reliable LFP battery cells in the United States, supporting home, business, grid, and electric vehicle power needs through a vertically integrated supply chain.
Based in Las Vegas, NV, American Battery Solutions engineers, develops, and manufactures advanced lithium-ion battery systems. The company specializes in providing battery solutions for electric vehicles, electrified transportation, and various industrial and commercial market applications.
Bracalente specializes in precision machining component parts for the electric vehicle industry, including chargers, battery packs, and modules. Serving domestic and foreign manufacturers, they offer services like Design for Manufacturing (DFM) and lights-out machining. The company operates lean manufacturing facilities in the United States with over 70 years of experience.
Futronic USA Inc., a South Korean manufacturer of electric vehicle parts and motor vehicle transmissions, is establishing its first U.S. facility in Buda, TX. The company's $17 million investment will create 350 jobs at this new location.
Crown Battery Manufacturing Company specializes in designing and producing high-performance lead-acid batteries. Based in Fremont, OH, they offer robust battery solutions for diverse applications, including automotive, commercial, marine, and renewable energy. Their advanced battery technology is suitable for integration into various electric vehicle components and systems.
Based in New Albany, OH, CVG provides electric vehicle assemblies and electrical wire harnesses, directly supporting EV manufacturing. They also supply seating and suspension systems, mechanical assemblies, and plastic parts. The company offers electrical system design, harnesses, and controls for diverse vehicle applications.
Based in Syracuse, NY, D&D Motor Systems, Inc. manufactures high-performance electric motors. Proudly made in the USA, their motors provide superior torque and enhanced thermal capabilities for electric cars and vehicles. They supply components for golf carts, autohaulers, NEVs, mining, and go-karts.
Based in Milpitas, CA, Seres specializes in the development and manufacturing of electric vehicle components. The company provides advanced E-Drive Systems, electric motors, and inverters. Seres also offers drive unit development and software solutions for electric commercial and passenger vehicles.
Elasto Proxy manufactures custom rubber components for electric vehicle manufacturers. They provide custom rubber seals, gaskets, thermal and acoustic insulation, and EMI shielding. Capabilities include notching, splicing, water jet cut lengths, kitting, and UV printing for traceability, offering a complete solution for EV applications.
TREMEC Electric GT manufactures proprietary EV components and offers complete EV powertrain solutions. They provide OEM EV turnkey powertrains and e-Crate Systems for low volume manufacturing, specialty builders, and the aftermarket vehicle conversion industry, emphasizing electrified performance and platform integration.
Based in San Leandro, CA, Electric Motorsport, Inc. has pioneered the development of electric propulsion systems and EV conversion kits since 2001. The company specializes in providing core components for electric vehicles, catering to the growing market for electric mobility solutions and vehicle electrification projects.
Enevate Corporation, based in Irvine, CA, develops pure silicon-dominant Li-ion battery technology for electric vehicles. Their XFC-Energy® technology enables ultrafast charging, higher energy density, and improved safety. They license their patented battery innovations to automotive OEMs and EV battery manufacturers.
Based in Missouri City, TX, Excell Battery Company is an ISO 9001:2008 certified battery manufacturer specializing in custom battery packs and innovative battery solutions. The company provides engineering, design, manufacturing, and recycling services for critical applications in hazardous environments, industrial, and medical sectors.
Based in Warren, OH, Foxconn Ohio I FEVSYS LLC operates a large manufacturing facility dedicated to electric vehicle production. As a key part of Foxconn Technology Group's strategic initiatives, the company focuses on bringing EV manufacturing to reality within the United States.
Based in Rowlett, TX, H&S Manufacturing Co. offers precision CNC machining services for electric vehicle (EV) charging components. They provide durable, high-performance solutions using materials such as aluminum, stainless steel, and copper alloys. The company ensures parts meet specific requirements for electrical conductivity and resilience in EV infrastructure applications.
Based in Arnold, MO, LMC Industries, Inc. provides contract manufacturing services specializing in metal stamping and injection molding. With extensive tooling and prototyping capabilities, they create high-quality, next-generation components. The company explicitly works to advance electronic vehicles by producing essential components for the EV market.
Based in Charlotte, NC, MW Components specializes in precision machining and custom manufacturing services for electric vehicle parts. They produce critical components such as battery contacts and fasteners, utilizing processes designed to reduce costs and enhance structural integrity. The company ensures timely delivery to meet production schedules for EV manufacturers.
Octillion designs and manufactures tailor-made battery systems, including battery management systems (BMS), for electric and commercial vehicles. Operating a 1GWh factory in Reno, Nevada, the company provides high-volume, customized energy storage solutions for e-mobility, marine, industrial, and grid applications.
Stealth EV provides high-quality EV parts, with all products undergoing rigorous testing for durability and performance. Based in Carson, CA, the company focuses on delivering robust components for electric vehicle applications, ensuring reliability and quality for its customers.
Based in Brownstown, MI, Systrand specializes in precision machining electric motor components for electric and hybrid vehicles. They manufacture precision gears and shafts for EV powertrains, including parts for stator and rotor housings. The company focuses on producing components to tight tolerances for automotive OEMs and automakers.
The Lee Co. is a US-based manufacturer of precision components for electric vehicles. With manufacturing headquarters in Westbrook, CT, the company provides automakers with tested solutions and relevant products to achieve project goals and meet global emissions objectives for BEV, PHEV, and FCEV designs.
Based in Santa Rosa, CA, ThunderStruck Motors, LLC researches, develops, and manufactures electric drive technology. They provide tested EV components and kits for electric vehicle conversions and builds. The company offers technical support, manuals, and data sheets on EV equipment for enthusiasts.
Based in El Segundo, CA, BTC POWER develops, manufactures, and supplies charging systems for electric vehicles. The company offers both DC fast chargers and AC charging solutions for home and commercial use, actively contributing to the expansion of EV infrastructure.
Based in Austin, TX, EnergyX is a clean energy technology company focused on direct lithium extraction, refining, and production. They develop advanced battery and energy storage solutions, providing lithium materials for the battery material supply chain. EnergyX aims to power a sustainable future with breakthrough lithium and battery technologies.
Formosa EV provides precision-built, modern systems for simplified electric vehicle conversions. The company offers modular EV components structured around five core categories, engineered to work in harmony. Its products are designed for builders, professionals, and DIYers.
Frigate accelerates EV production with precision component prototyping and scalable on-demand custom manufacturing. They specialize in multi-cavity variance minimization, material system compatibility for high-voltage EV assemblies, and thermal warpage control for large EV castings. Frigate also provides inductors and automotive cables.
NMB Technologies Corporation is a precision manufacturer of electromechanical components. The company provides a diverse range of value-added components for various industries, including automotive, robotics, energy storage, and HVAC. Their product offerings include AC fans, sealed connectors, EV traction motor bearings, and high voltage BLDC motors.
Based in Novi, MI, Our Next Energy (ONE) manufactures U.S.-made LFP cells, modules, and battery management systems (BMS). They specialize in advanced battery technologies, providing critical components for electric vehicles. ONE focuses on increasing EV range, enhancing safety, and building a sustainable domestic supply chain for automotive and grid energy storage solutions.
Based in Burlingame, CA, Proterra designs and manufactures advanced EV battery systems for heavy-duty on- and off-road vehicles. The company partners with transportation and equipment manufacturers, offering engineering expertise and tailored integration solutions. Their scalable battery packs feature advanced safety, rigorous testing, and high energy density.
Based in San Jose, CA, QuantumScape develops and manufactures next-generation solid-state lithium-metal battery technology for electric vehicles. Their innovative EV components offer greater energy density, faster charging, and enhanced safety. The company's anode-less cell design aims to enable a lower carbon future for transportation.
Based in Sacramento, CA, Sparkz, Inc. is a battery technology company specializing in the production of next-generation lithium batteries. They develop advanced energy storage solutions for electric vehicles and commercial applications, operating a new manufacturing facility.
Based in Alpharetta, GA, Stryten Energy manufactures a diverse range of batteries designed for various applications. Their products power transportation sectors, including electric vehicles (EVs), trains, and trucks, as well as critical infrastructure like microgrids and material handling equipment. They specialize in robust battery solutions for motive and network power needs.
Based in Houston, TX, TexPower EV Technologies, Inc. manufactures advanced cobalt-free, iron-based lithium iron phosphate (LFP) and nickel manganese aluminum (NMA) cathode materials. These critical EV battery components provide high energy, excellent safety, and extended cycle life for electric vehicles and energy storage systems.
Vellan Global manufactures and supplies high-quality automotive iron castings and machined engineering parts for EV and automotive applications. Operating an in-house CNC machine shop, the company produces critical, high-precision components like EV fan rings, motor bodies, bearing stops, brake calipers, and various gears.
Based in Hartland, WI, Fathom provides advanced prototyping and manufacturing services with explicit expertise in electric vehicle component production. Their comprehensive capabilities include 3D printing, CNC machining, metal cutting, injection molding, and urethane casting, supporting projects from rapid prototyping through low-volume production.
Based in Ontario, CA, HPEVS designs, develops, and manufactures 3-phase AC induction drive systems. These essential electric vehicle components are provided for an array of vehicles and industries, offering advanced propulsion solutions for the EV market.
Based in Austin, TX, T1 Energy Inc. manufactures advanced battery technologies. They specialize in developing and producing critical battery components, including cell form factor designs, N-Type wafers, tunnel oxides, and metal contacts. The company provides direct manufacturing for electric vehicle applications.
Based in Augusta, GA, U.S. Battery Manufacturing Co. specializes in producing a wide range of deep cycle batteries. The company manufactures batteries for diverse applications, including Electric Vehicles, renewable energy systems, marine vessels, and recreational vehicles, focusing on delivering reliable power solutions.
Based in Delphos, OH, Vanamatic specializes in manufacturing high-precision components for both electric vehicles (EV) and combustion engines. Utilizing CNC screw machines and automated inspection systems, they produce critical parts for battery systems, drivetrains, and other automotive applications, ensuring top quality and defect-free products.
ampREVOLT specializes in custom electric vehicle conversions, offering EV parts and kits for DIY builds and OEM integration. They provide essential components like patent-pending modular battery boxes, driveshaft adapters, busbars, and control units primarily for Tesla-based systems.
BorgWarner manufactures permanent magnet synchronous electric drive motors for electromobility applications. These compact and efficient motors are scalable from 15 to 150 kW, suitable for hybrid and electric vehicles. They also enable the electrification of auxiliary units such as hydraulic pumps or compressors, offering comprehensive EV drive solutions.
Based in Glendale, WI, Clarios manufactures advanced battery technologies and energy storage solutions for the evolving transportation sector. The company provides OEMs with AGM, lithium-ion, and supercapacitor batteries, alongside low-voltage battery architectures and multi-battery systems. These solutions integrate cutting-edge software and electronics for modern vehicles.
Conifer specializes in manufacturing compact, modular, and cost-effective powertrains, including in-wheel powertrains, integrated controllers, VCUs, and NEMA EC motors. These essential components are engineered to power a wide range of applications, such as small mobility solutions, off-road vehicles, power tools, fans, and pumps.
Curtis Instruments develops and manufactures instrumentation, motor speed controllers, inverters, and integrated drive systems for electric vehicles. The company also provides engineering support to EV designers, offering critical components for advanced electric powertrains and mobility solutions.
Factorial Energy manufactures advanced solid-state batteries, designed to power the next shift in mobility and intelligence. Specializing in solutions for eMobility, defense, and AI/robotics, the company provides safer, higher-performing, and scalable battery technology that pushes beyond conventional lithium-ion limits.
General Motors provides genuine electric vehicle (EV) and hybrid propulsion components, available through gmparts.com. Their offerings include battery pack structures, high-voltage controls, pre-charge components, energy control modules, and EV system cooling parts. These components are designed, engineered, and tested by General Motors to meet rigorous standards for their electric and hybrid vehicles.
Based in San Jose, CA, Lyten leverages Three-Dimensional Graphene supermaterials to manufacture innovative components. The company develops Lithium-Sulfur battery systems, offering lighter, stronger, and cleaner solutions. Lyten serves the transportation sector, providing critical battery technology for electric vehicles and advanced energy storage applications.
Marathon Electric LLC specializes in the engineering and production of electric motors and generators. The company focuses on delivering solutions known for precision, reliability, efficiency, and performance, aiming to foster a more innovative and sustainable world through its manufactured products.
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A well-designed BMS architecture directly influences battery performance. Advanced BMS solutions optimize cell balancing, manage thermal profiles, and provide precise state-of-charge (SoC) and state-of-health (SoH) estimations. This leads to more efficient energy utilization, prevents overcharging/discharging, and enables faster, safer charging cycles, ultimately maximizing both range and battery lifespan.
For EV power electronics like inverters, DC-DC converters, and onboard chargers, ISO 26262 is paramount. You should prioritize suppliers who can demonstrate compliance up to the appropriate Automotive Safety Integrity Level (ASIL) for your specific component's criticality. Look for a robust safety plan, hazard analysis and risk assessment (HARA) documentation, and evidence of a safety-oriented development process.
Key considerations for HVIs include proper conductor sizing to manage current and prevent overheating, robust insulation materials with high dielectric strength, and secure, vibration-resistant connectors. Suppliers must demonstrate expertise in creepage and clearance distances, shielding for electromagnetic compatibility (EMC), and robust sealing (e.g., IP67/IP6K9K) to prevent moisture ingress and reduce the risk of thermal runaway or arcing.
Inquire about their track record with specific cell chemistries relevant to your application, focusing on their thermal and electrical management expertise for each. For advanced integration, assess their design capabilities for Cell-to-Pack (CTP) or Cell-to-Chassis (CTC) designs, which require deep structural, thermal, and electrical integration knowledge to maximize energy density and structural rigidity.
For traction motor components, look for expertise in advanced manufacturing processes such as precision winding techniques for stators, high-tolerance machining for rotors and shafts, specialized welding or bonding for magnet retention, and robust impregnation/encapsulation methods to ensure durability and thermal performance. Cleanroom capabilities may also be critical for sensitive sub-assemblies.
Beyond IATF 16949, demand comprehensive testing reports including environmental testing (thermal cycling, humidity, vibration, shock per USCAR-2 or ISO 16750), electromagnetic compatibility (EMC/EMI) reports (e.g., ISO 7637), and highly accelerated life testing (HALT) or accelerated life testing (ALT) data. Also, request detailed material declarations and traceability information, especially for conflict minerals in critical raw materials.