Best American Car Manufacturers Suppliers in United States
Discover a comprehensive list of American automotive manufacturers, offering cutting-edge technology, specialized engineering, and diverse vehicle types for efficient sourcing and production.
AutomotiveManufacturingEngineeringVehiclesTechnology
DT metronic, Inc.
🇺🇸 United States
198311-50 peopleManufacturer/Service CompanyEstablished brand
OEM manufacturer
Product customization
Multinational enterprise
Shipments
21
Key customer
KINPO
Key market
North America
Description
DT metronic, Inc. is a specialized manufacturer of custom decorative elements and precision-engineered mechanical components based in Downers Grove, Illinois. Established in 1983 and operating as a key subsidiary of the Decor-Technik Group, the company provides comprehensive B2B solutions ranging from design engineering and prototyping to large-scale series production. They serve a prestigious global clientele across the automotive, electronics, medical technology, and musical instrument industries, including brands such as Audi, Bose, Cadillac, and C.F. Martin Guitars.
The company operates a factory equipped for diverse manufacturing processes, including zinc die casting, nickel electroforming, aluminum extrusion, plastic injection molding, and precision stamping. Their core product portfolio features high-quality metal nameplates, emblems, badges, decals, and graphic overlays, alongside functional components like heat sinks, front panels, and mechanical parts. DT metronic, Inc. is distinguished by its ability to work with a wide array of materials such as aluminum, stainless steel, brass, and copper, offering advanced surface treatments including galvanizing, diamond cutting, and UV printing.
With a commitment to quality management and technical excellence, DT metronic, Inc. is ISO 9001:2015 certified. The company supports its manufacturing capabilities with expert consulting, material planning, and logistics services, ensuring tailored solutions for both decorative branding and complex electromechanical applications.
Emblems
ISO 9001
Senior Flexonics Inc
🇺🇸 United States
1903201-300 peopleManufacturer/Service Company/Trading CompanyEstablished brand
OEM manufacturer
Product customization
Industry association member
Shipments
31
Key customer
DINEX
Key market
🇨🇳 China
Description
Senior Flexonics Inc, a subsidiary of Senior PLC, is a premier global manufacturer and engineering specialist with over 100 years of experience in thermal management and fluid conveyance solutions. Headquartered in Bartlett, Illinois, the company operates as a multi-industry corporation specializing in the design, validation, and high-volume production of complex metallic components. Their core expertise lies in precision-engineered metal bellows, expansion joints, flexible metal tubing, and advanced heat exchangers. Senior Flexonics serves a diverse range of demanding sectors, including automotive (combustion, hybrid, and electric vehicles), power generation, oil and gas, medical, and aerospace. For the automotive industry, they provide critical components such as EGR coolers, fuel rails, and battery cooling plates for electric vehicles. Their industrial portfolio includes vacuum interrupters, cryogenic equipment, and high-pressure pipes. The company maintains a strong focus on innovation and sustainability, utilizing advanced analytical testing, FEA/CFD modeling, and rapid prototyping to meet stringent global emission standards. Manufacturing capabilities encompass high-precision machining, welding, brazing, and forming of specialized high-temperature alloys. Senior Flexonics is committed to quality and environmental excellence, holding ISO 9001, IATF 16949, and ISO 14001 certifications, while also maintaining ITAR compliance for defense-related applications.
Automotive Flexible Tube
Automotive Heat Exchangers
Automotive Exhaust Connector
Automotive Common Rail
Automotive Drain Tube
Automotive High Pressure Lines
Energy, Industrial, Chemical, HVAC, Oil and Gas Machined Components
Industrial Flexible Tubing
Turbo Oil Feed/Drain Tubes
Forged and Welded Common Rail
Land vehicles and engines
Exhaust Gas Recirculation (EGR) cooler
Fabricage Group LP
🇺🇸 United States
2016Fewer than 5 peopleManufacturer/Service CompanyOEM manufacturer
Product customization
Patented technology
Key customer
ACE HARDWARE
Description
Fabricage Group LP, established in 2016, is a US-based manufacturer and service company located in Pittsburgh, Pennsylvania, specializing in end-to-end manufacturing solutions from prototyping to production. With a focus on increasing efficiency and accelerating product development, the company acts as a dedicated partner for businesses ranging from startups to large enterprises. They offer comprehensive contract manufacturing services including CNC machining, injection molding, additive manufacturing, production line manufacturing, CAD design, and patent design drawings. Their capabilities extend to metal fabrication, laser cutting, metal casting, metal stamping, plastic extrusion, bending, vacuum forming, and various molding processes such as blow, rotational, and overmolding. Fabricage Group LP serves diverse industries including consumer products, automotive, hardware startups, lifestyle & sporting goods, electronics & semiconductors, and sports. They handle both prototype and large volume production runs for products made from plastic, metal, and polymer, ensuring precision and quality through state-of-the-art equipment and experienced technicians. The company also provides design services to transform CAD files into tangible prototypes or finished products and leverages relationships with domestic and overseas manufacturers while maintaining NDAs for intellectual property protection.
Automotive
Hardware Startups
Lifestyle & Sporting Goods
Electronics & Semiconductors
Design Services
Consumer Products
Argon Tool, Inc.
🇺🇸 United States
19535-10 peopleManufacturer/Trading CompanyEstablished brand
OEM manufacturer
Own brand
Product customization
Shipments
61
Key customer
KENWORTH
Key market
🇲🇽 Mexico
Description
Argon Tool, Inc. is a premier American manufacturer and supplier of industrial marking devices, headquartered in Madison Heights, Michigan. Established in 1953, the company has over 70 years of expertise in designing and manufacturing high-quality marking tools and machinery for metal, wood, plastic, leather, and concrete. Argon Tool operates as a specialized contract manufacturer and OEM, serving major automotive clients such as General Motors, Ford, and Daimler-Chrysler by producing stamps and holders directly from automotive industry prints and specifications.
The company's extensive product portfolio is distributed through specialized divisions: SteelStamps.com, which focuses on hand-held marking tools, and Brand-First, dedicated to branding irons and hot stamping equipment. Core offerings include standard and custom engraved steel stamps, interchangeable steel type, rotary hand stamps, and low-stress marking solutions. Their machinery division provides advanced pneumatic and manual equipment, including air impact markers, impact marking presses ranging from 0.5 to 8.5 tons, roll marking machines, and numbering presses.
Argon Tool also specializes in precision inspection tools, such as the EZE-HAMMER, EZY-STAMP, and MICRO inspection markers. For specialized trades, they manufacture bronze concrete stamps and leather marking tools. With a focus on durability and safety, the company also provides accessories like hand stamp safety grips and inspection hammers. Combining decades of manufacturing heritage with modern e-commerce capabilities, Argon Tool provides both standard industrial solutions and custom-engraved tools tailored to specific client requirements.
Automotive standard bottoming markers
Premium Combination Set
Heavy Duty Combination Set
55-506-1442 RETAINER SET
Standard Combination Set
Premium Letter Set
Reverse Number Set
Standard Number Set
Reverse Combination Set
Heavy Duty Combination Set
Premium Letter Set
Reverse Number Set
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PACIFIC X AUTO CORPORATION
🇺🇸 United States
200111-50 peopleManufacturer/Trading Company/Service CompanyEstablished brand
OEM manufacturer
High-tech enterprise
Shipments
19
Key customer
ZF
Key market
🇺🇸 United States
Description
PACIFIC X AUTO CORPORATION, established in 2001, is a US-based manufacturer, trading company, and service provider specializing in automotive and industrial parts. With headquarters in the USA and manufacturing plants in Daegu, Korea, the company operates with 11 to 50 employees and focuses on R&D, smart factory technologies, and advanced production processes. They are certified with ISO 9001, IATF 16949, ISO 14001, and ISO 45001, demonstrating their commitment to quality and environmental management. PACIFIC X AUTO CORPORATION offers a wide range of products including Transmission parts, Eco-friendly Vehicle parts, Cold former parts, and Appliance parts. Their manufacturing capabilities encompass precision machining, cold heading and forming hardware, stamping and progressive dies, wire forming, and powder metal parts. They provide OEM and contract manufacturing services, with a strong focus on automotive accessory components. The company has a global reach, supplying to major customers like TESLA and FORD, and actively engages in international trade, importing components from South Korea. They also offer technical support, order services, and delivery services, managing the supply and delivery of automotive parts with a focus on quality and cost control.
BOLT & SHIFT PARTS
TRANSMISSION PARTS
OIL FILTER PARTS
Eco-friendly Vehicle part
OIL FILTER PARTS
Cold former part
Eco-friendly Vehicle part
BOLT & SHIFT PARTS
Transmission part
Cold former part
TRANSMISSION PARTS
Cold former part
A. Stucki Company
🇺🇸 United States
1911501-1000 peopleManufacturer/Service CompanyHigh capacity factory
Established brand
Patented technology
Multinational enterprise
Shipments
321
Key customer
STUCKI DE MEXICO
Key market
🇲🇽 Mexico
Description
A. Stucki Company is a premier designer, manufacturer, and supplier of engineered products and services for the international rail transportation market. Founded in 1911 and headquartered in Moon Township, Pennsylvania, the company has grown into a leading rail industry supplier with a workforce of 501 to 1,000 employees. Operating through two primary divisions—Freight Car and Locomotive Parts & Services, and Maintenance of Way—the company maintains a significant manufacturing footprint with 22 facilities across the United States, Mexico, and Brazil.
The company specializes in a comprehensive range of railcar components, including side bearings, brake systems, draft systems, and highly engineered hot wound coil springs for locomotive, transit, and industrial applications. Their extensive product portfolio also features GATOR® outlet gates, hatch covers, hydraulic stabilizers, bearing adapters, and track infrastructure products. Beyond manufacturing, A. Stucki Company provides critical services such as precision CNC machining, remanufacturing, repair, and reconditioning, alongside regulatory compliance support.
As a portfolio company of Stellex Capital Management, A. Stucki Company emphasizes North American sourcing and manufacturing to ensure high-touch service and quality. The company integrates several specialized brands, including Alco Spring, American Turbocharger, Magnus, Salco Products, and Seco Machine, to deliver turnkey solutions to Class 1 railroads and other global industrial segments. Their commitment to engineering excellence and strategic diversification allows them to solve unique challenges across the freight car and locomotive markets.
Brake Systems
Other Fueling Services
Direct to Storage (DTS) Distribution
Bearing Adapters
Pins
Hydraulic Stabilizers
Grating
Repair and Reconditioning
Side Bearings
Snubbing Systems
Hydraulic Stabilizers
Draft Systems
Cary Products Company, Inc.
🇺🇸 United States
194611-50 peopleManufacturer/Service CompanyEstablished brand
OEM manufacturer
ODM manufacturer
Product customization
Shipments
10
Key customer
MILLENNIUM RED DOT
Key market
🇨🇳 China
Description
Cary Products Company, Inc. is a premier plastic manufacturer and contract manufacturer headquartered in Hutchins, Texas. Established in 1946, the company brings over 75 years of industry experience to the global market, specializing in custom plastic injection molding, thermoforming, and precision tooling. As an ISO 9001:2015 certified organization, they maintain a strong commitment to quality management and technical excellence across their diverse service offerings.
The company operates an advanced manufacturing facility that includes a dedicated 5,000-square-foot tooling center equipped with CNC milling, EDM, micro welding, and 5-axis routing technology. Their comprehensive capabilities span the entire product lifecycle, from initial design and engineering using 3D technology to high-volume production and secondary assembly. Cary Products is particularly recognized for its patented air movement components, including blower fans, wheels, louvers, and air vents, serving critical sectors such as automotive HVAC, energy, construction, agriculture, and healthcare.
With a workforce of approximately 11 to 50 employees and annual revenues estimated between $8 million and $25 million, the company provides flexible production solutions ranging from rapid prototyping and low-volume runs to large-scale manufacturing. Their technical expertise also includes metal-to-plastic conversion, ultrasonic welding, and hot stamping. As a global partner with significant international trade experience, Cary Products supports a worldwide customer base by combining domestic manufacturing reliability with sophisticated supply chain capabilities.
custom injection-molded parts
custom injection-molded parts
custom injection-molded parts
equipment screens
fans
louvers
fans
louvers
blowers
architectural louvers
architectural louvers
shutters
Moss Seal Company
🇺🇸 United States
197251-100 peopleManufacturer/Distributor/Service CompanyEstablished brand
OEM manufacturer
Product customization
Custom packaging
Shipments
56
Key customer
ICAM SOLUTION
Key market
🇮🇳 India
Description
Moss Seal Company is a premier manufacturer and distributor of engineered sealing solutions and precision-machined components, headquartered in Houston, Texas. Since its founding in 1972, the company has established itself as a global supplier for demanding industries, including oil and gas, aerospace, automotive, hydraulic equipment, and energy infrastructure. Operating from a 22,500-square-foot facility, the company maintains ISO 9001:2015 certification and provides comprehensive quality assurance through CMM, MTR, and NDT reporting.
The company specializes in high-performance fluid sealing technologies designed for critical high-pressure and high-temperature applications, such as hydraulic fracturing and well completions. Their extensive product portfolio includes O-rings, hydraulic and pneumatic seals, U-cups, T-seals, gaskets, and spring-energized PTFE seals. Beyond standard sealing products, Moss Seal Company offers advanced manufacturing capabilities, including CNC machining for metals and thermoplastics, rubber molding, and the production of frac balls and ball seats. They work with a wide range of materials such as PEEK, PTFE, Nitrile, Viton®, stainless steel, and aluminum.
As a full-service B2B partner, Moss Seal Company provides end-to-end support from CAD design and prototyping to final production. Their value-added services include custom kitting, specialized packaging with barcoded labeling, and vulcanizing. With a workforce of approximately 50 to 100 employees and a commitment to maintaining a large inventory, the company ensures timely delivery of both standard OEM parts and custom-engineered components to meet rigorous field standards.
Custom Parts
Custom Parts
Ball Seats
Connectors
Connectors
Insulator Sleeves
Spring-Loaded Lips Seals
Ball Seats
Thrust Bearings
Insulator Sleeves
Crush Rings
MWD Components
Revtech Manufacturing
🇺🇸 United States
2003201-300 peopleManufacturerEstablished brand
OEM manufacturer
Product customization
Small batch production
Shipments
72
Key customer
OLAM
Key market
🇻🇳 Vietnam
Description
Revtech Manufacturing, a family-owned contract manufacturer based in Kenosha, Wisconsin, specializes in custom plastic injection molding and additive manufacturing. Established in 2003, the company employs between 201 and 300 people and operates a factory strategically located to serve the Chicago and Milwaukee areas. They offer comprehensive services including CAD design, part validation with CMM, mold design, CNC and EDM mold fabrication, 3D printing, and plastic injection molding. Revtech Manufacturing is adept at producing prototype and production tooling, utilizing M.U.D. mold inserts for quick run tools and 3D printed molds for low-volume prototypes. Their product specializations include handles and grips (hard, strong, soft, colorful rubber grips, and medical handles), automotive parts (HVAC, air induction, fluid pressure, interior trim, instrument panel, underhood components), electronics housings, sporting goods, and pet products. They work with engineering polymers like Zytel glass-filled polyamide, handle abrasive-filled materials, and offer two-shot injection molding and color-matched parts. Revtech Manufacturing serves diverse industries such as Automotive, Medical (non-injectable), Electronics Housing, Pet and Pool Products, Sporting Goods, and Arms Accessories, with a focus on custom parts, short lead times, and medium volumes. They also provide metal polishing of stainless steel.
Part & Mold Design
Plastic Injection Molding
Handles & Grips
3D Printing/ Additive Manufacturing
3D Printing/ Additive Manufacturing
Prototype & Production Tooling
Burnstein von Seelen Precision Castings Corporation
🇺🇸 United States
1985101-200 peopleManufacturer/Distributor/Trading CompanyEstablished brand
OEM manufacturer
Product customization
Low MOQ
Shipments
290
Key customer
SIEMENS
Key market
🇲🇽 Mexico
Description
Burnstein von Seelen Precision Castings Corporation is a premier custom manufacturer and engineering firm headquartered in Abbeville, South Carolina. Founded in 1985, the company has established itself as a specialized one-stop-shop for high-quality precision castings, particularly as the only ISO-certified copper-based permanent mold facility in North America. With a workforce of approximately 100 to 200 employees and an estimated annual revenue between $10 million and $25 million, the company serves global enterprise clients including Siemens, General Electric, Schneider Electric, and Eaton.
The company specializes in permanent mold chill casting technology, producing near-net-shape components that minimize the need for extensive machining. Their metallurgical expertise allows them to prepare custom alloys from virgin materials, resulting in superior strength, thermal conductivity, and corrosion resistance compared to standard commercial alloys. Their core material focus includes high-conductivity copper, brass, bronze, nickel-copper, and aluminum bronze.
Operating from a 25,000-square-foot facility, Burnstein von Seelen provides fully integrated in-house services, including mold tooling design, captive CNC machining (milling, turning, and multi-axis), and specialized plating services such as silver, tin, and nickel electroplating. This vertical integration supports both intricate prototyping and large-scale production runs while reducing lead times and shipping costs. The company is a trusted partner for diverse sectors including aerospace, automotive, medical, and electrical components, maintaining rigorous quality standards with certifications such as ISO 9001:2015, ASME, and RoHS compliance.
Bronze parts showing a variety of complex configurations.
A six part fabrication becomes a one-piece casting.
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