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Wire Harness Manufacturers

Last updated: January 2026

This directory lists 124 wire harness manufacturers across the United States, from quick-turn prototype shops to high-volume production specialists.

Companies rely on wire harness manufacturers to solve critical challenges related to product reliability, power delivery, and signal integrity. Whether it's ensuring consistent current carrying capacity through appropriate wire gauge selection or implementing precise termination methods for sensitive data lines, the quality of a wire harness directly impacts product performance and safety. Complexities often arise with intricate routing, demanding proper strain relief, and the integration of diverse connector types that must withstand specific environmental conditions, sometimes requiring advanced processes like overmolding or potting.

The landscape of wire harness suppliers ranges widely. You'll find highly specialized manufacturers focusing exclusively on industries like medical devices, aerospace, or automotive, often possessing stringent certifications and advanced testing capabilities like hipot and pull testing. On the other end are more generalist manufacturers, capable of handling a broader spectrum of commercial and industrial applications, often excelling in high-volume, automated production. Understanding these distinctions is key to matching your specific project needs – be it low-volume, high-complexity, or high-volume, standardized production – with the right operational scale and technical expertise.

To engage effectively with a wire harness manufacturer, buyers must come prepared with comprehensive documentation. This typically includes a detailed Bill of Materials (BOM) with specific manufacturer part numbers for all connectors, wires, and other components, along with clear 2D drawings that specify lengths, strip dimensions, pinouts, and any critical assembly notes. Suppliers, in turn, expect a thorough understanding of your application's environmental requirements, projected annual volumes, and any specific testing protocols like 100% continuity testing or insulation resistance checks to provide accurate quotes and ensure quality production.

A significant trend reshaping the industry is the increasing demand for "smart harnesses" that integrate sensors, communication protocols, or even active electronic components directly into the harness assembly, moving beyond passive wire bundles. This shift, coupled with an intensified focus on global supply chain resilience and component traceability in an era of volatile material availability, means manufacturers are investing more in advanced assembly automation, in-house component sourcing intelligence, and robust quality management systems to meet evolving customer requirements for complex, highly reliable, and traceable interconnect solutions.

124 companies·92 emails·117 phones

Company Directory

124 companies nationwide

Cincinnati, OH

Based in Cincinnati, OH, OTR Connections, LLC manufactures custom cable assemblies and harnesses. Compliant with the IPC 620 Standard, they serve industries such as machine tooling, computer, communication, and power applications. OTR Connections also provides dependable box build services for control and communication systems.

Elgin, IL

Based in Elgin, IL, A2Z EMS specializes in cable assembly services and wire harness solutions, providing precise and reliable assemblies tailored to specific needs. As an Electronic Manufacturing Services (EMS) provider, they also offer Surface Mount Technology, Through Hole Technology, and box build assembly services.

Dayton, OH

Based in Dayton, OH, ADCURA Manufacturing specializes in low to high volume contract manufacturing of wire assemblies, cable assemblies, and wire harness assemblies. They provide electromechanical assemblies, panel/box builds, custom kitting, and physical prototyping services. Capabilities include automatic wire cut/strip, harness board assembly, and product verification/testing.

Palatine, IL

Aimtron provides custom cable and wire harness assemblies for multi-function and high-reliability systems. Adhering to standards like ISO 13485 and IATF 16949, they offer ruggedized harnesses for harsh environments. The company integrates MIL-SPEC, automotive, and industrial-grade connectors into their assemblies.

Manteca, CA

Based in Manteca, CA, ALF Industries provides custom wire harness manufacturing and cable assembly services. They offer comprehensive solutions for various industries, specializing in producing high-quality components designed for reliable performance. The company focuses on meeting diverse client specifications and project requirements.

San Jose, CA

Based in San Jose, CA, Alpine Electronics specializes in custom cable assemblies and wire harnesses. They provide various configurations, sizes, and colors, including armored IP68 cables for harsh environments. The company focuses on crafting reliable assemblies for transmitting power or informational signals.

Bellmawr, NJ

Based in Bellmawr, NJ, American Autowire manufactures and hand-builds over 10,000 wiring kits and harnesses at its Southern New Jersey facility. The company specializes in automotive projects, including GM OEM restoration, restomod, and classic vehicle electrical updates, providing specialized wiring solutions for diverse models.

Palmer, MA

Based in Palmer, MA, American Cable Assemblies, Inc. manufactures standard and custom fiber optic cabling solutions. The company also specializes in copper assemblies and power cables, serving various industries with high-quality, made-in-USA products.

Justin, TX

Based in Justin, TX, American Made Harness builds custom cable assemblies, wire harnesses, RF cables, and electronic component kitting. The company focuses on delivering cost-effective, quality products with great customer service and on-time delivery for various industry projects and applications.

Hampshire, IL

Based in Hampshire, IL, American Precision Assemblers, Inc. specializes in producing custom aerospace cable harnesses. These products are designed for durability, performance, and compliance in demanding operational environments. The company focuses on serving the aerospace industry with high-quality, reliable assemblies.

Brenham, TX

Based in Brenham, TX, Bencor LLC provides custom cable assembly and wire harness manufacturing services. They utilize an in-house processing team to optimize and perfect electrical cable construction for diverse industrial applications. Their expertise extends to demanding sectors like satellite cable assemblies for harsh conditions.

San Jose, CA

Bentek specializes in the development and manufacturing of custom cable and wire harness assemblies. Operating from facilities in San Jose, CA, and Reno, NV, the company provides power distribution and conversion solutions. They cater to a wide range of B2B equipment needs across industries including semiconductor, solar, medical, and data centers.

Botkins, OH

Based in Botkins, OH, Buckeye Electrical Products Inc. manufactures quality cables and complete wire harnesses. They provide custom-built assemblies, including coaxial, ribbon, industrial wiring, and flexible harnesses. Offering prototyping services, the company serves commercial, medical, military, and entertainment sectors with turnkey solutions or client-provided materials.

Fremont, CA

Based in Fremont, CA, Cable Connection specializes in custom cable assemblies and wire harness manufacturing. They provide engineering, prototyping, and full production services, including overmolding and testing. Serving industries such as medical, industrial, test & measurement, and military, they deliver tailored connectivity solutions from their US manufacturing facility.

Huntington Beach, CA

Based in Huntington Beach, CA, Cable Harness Systems, Inc. manufactures custom cable assemblies, wire assemblies, and harnesses. This US-based company offers turnkey engineering through manufacturing for electronic and electro-mechanical assemblies. Their products serve industries such as consumer electronics, telecommunications, medical, and industrial automation.

Tipp City, OH

Based in Tipp City, OH, Captor Corporation specializes in manufacturing IPC/WHMA-A-620 certified cable assemblies. They serve military, electromechanical, aerospace, and automotive industries, creating custom designs with various wire types, crimp, solder terminals, and specialized connectors to meet diverse customer needs.

Colorado Springs, CO

Based in Colorado Springs, Carrio Cabling manufactures custom wire harnesses that often incorporate molding and custom connectors. The company also produces molded cable assemblies, coil cords, and power cords. They are ISO 9001:2015 and ISO 13485:2016 certified, providing specialized cabling solutions made in the USA.

Irvine, CA

Based in Irvine, CA, Carr Manufacturing Company, Inc. is an automotive wire harness manufacturer providing end-to-end custom wire harness services. They serve the transportation sector, fabricating solutions for applications ranging from GPS devices to farm equipment with two production units.

Bolingbrook, IL

Casco Manufacturing, based in Bolingbrook, IL, provides custom cable and wire harness assembly for OEM and distribution markets. They offer high-performance solutions for diverse sectors like transportation and industrial. The company is ISO 9001:2015 and IPC/WHMA-620 certified, emphasizing quality and precision in its manufacturing processes.

El Paso, TX

Based in El Paso, Texas, Cesar-Scott Inc specializes as an IPC and WHMA-certified wire harness manufacturer. The company delivers high-quality custom cable assemblies, catering to diverse industrial needs. With a focus on precision, Cesar-Scott serves clients seeking reliable interconnection solutions.

Carlsbad, CA

Based in Carlsbad, CA, Spectrum Assembly, Inc. (SAI) manufactures cable and wire harnesses, printed circuit board assemblies, and full box builds. Serving Medical, Industrial, Defense, and Aerospace sectors, SAI handles prototypes to high volumes, adhering to ISO 9001, ISO 13485, AS9100, and ITAR compliance.

Jersey Village, TX

Based in Jersey Village, TX, Complete Custom Cables LLC is an electromechanical manufacturer and designer. The company provides custom wire harnesses, including large custom wire harnesses, and custom cable assemblies. They specialize in products such as overmolded cables and custom snakes.

Toledo, OH

Based in Toledo, OH, Connectronics Corp. designs and manufactures custom cable assemblies and wire harnesses. They offer turnkey interconnection solutions, including stripping, crimping, and labeling services. Serving demanding applications in aerospace, medical, nuclear, and oil and gas industries, they focus on reliable performance.

Fort Worth, TX

Based in Fort Worth, TX, Co-Operative Industries Aerospace & Defense specializes in manufacturing a diverse array of wiring harnesses and interconnects. The company serves various sectors, including commercial and military aircraft applications, as well as broader industrial markets, providing critical components designed for performance and reliability in demanding environments.

Port Richey, FL

Based in Port Richey, FL, Current Performance Wiring specializes in manufacturing custom and direct-fit engine wire harnesses. They produce wiring solutions for various automotive applications, including LSx Gen 4 V8 conversions for vehicles like the Colorado Canyon, and custom harnesses for classic trucks, focusing on specific vehicle models and engine swaps.

Barberton, OH

Based in Barberton, OH, Custom Auto Wiring specializes in manufacturing and assembling wire harnesses for automotive aftermarket and industrial OEM markets. They handle short to medium production runs, from 10 to 10,000 units. Capabilities include on-site small press injection molding for custom connectors and wire/terminal over molding.

Centerville, IN

Based in Centerville, IN, Custom Cord & Harness Assemblies, Inc. is a contract manufacturer of commercial and industrial wire harness assemblies, multi-conductor cable assemblies, and power cords. They utilize high-speed automated production equipment and 100% testing, offering design assistance and extensive connector tooling to ensure quality.

Dallas, TX

Cypress Industries is a global, vertically-integrated contract manufacturer of custom wire harnesses and cable assemblies. They also provide PCBA's, sheet metal fabrication, control panels, plastic injection molding, and machined parts. With manufacturing facilities in Austin, Texas, they offer comprehensive solutions for high-volume industrial clients.

San Jose, CA

Based in San Jose, CA, Amphenol DC Electronics manufactures custom cable assemblies and wire harnesses. They also provide integrated electrical mechanical devices, overmolded, and discrete assemblies. The company serves aerospace, military, medical, industrial, and agricultural sectors from its 70,000 square foot facility.

Vista, CA

Based in Vista, CA, DDH Enterprise, Inc. is a contract manufacturer specializing in cable and wire harness assemblies. They produce EV/Automotive, medical device, and power cables, offering custom solutions. Capabilities include flat ribbon IDC, specialty harness assemblies, and box build/electromechanical assembly for various OEM products.

Lexington, OH

Based in Lexington, OH, DECA Manufacturing specializes in producing wire harnesses and cable assemblies for data and power applications. The company offers design and prototyping services, comprehensive box builds, and manufactures thermal products. They provide manufacturing support including hand soldering, potting, and laser wire stripping.

Spring, TX

Based in Spring, TX, Defender Supply specializes in custom wiring harness manufacturing, offering tailored solutions for diverse applications. The company designs and produces bespoke wiring harnesses to meet specific customer requirements, providing direct shipping services for convenient delivery across the US.

Garden Grove, CA

Based in Garden Grove, CA, ElCom Systems specializes in custom wire harnesses and cable assemblies for high-reliability applications. They also provide electro-mechanical sub-assemblies, box-build integration, and adapters. The company serves the Space, Aerospace, Military/Defense, Commercial Avionics, and Medical markets.

Moraine, OH

Based in Moraine, OH, ElectriPack provides innovative wire harness solutions, specializing in termination, braiding, ultrasonic welding, kitting, and wire marking. They deliver high-quality assemblies for precision, durability, and safety, serving automation, aerospace, medical, and electronic devices.

Wareham, MA

Based in Wareham, MA, Electro-Prep, Inc. specializes in custom wire harness manufacturing and assembly. They build to client specifications, integrating electrical components like motors and PCBs. Customization includes wire types, insulation, and securing methods. Electrical testing ensures quality and simplifies installation.

Wellington, KS

Elite Harness manufactures electrical wire harnesses and custom cables. They engineer full-size prints and build to customer specifications, utilizing advanced equipment. The company serves industries including heavy industry, transportation, agricultural equipment, high-voltage, solar, and aerospace and defense.

Bedford, MA

Based in Bedford, MA, Epec Engineered Technologies specializes in the supply, design, and construction of custom wire harnesses. They produce assemblies with dozens of wires, often including hundreds of components and terminations. Their engineering staff supports clients in developing efficient and robust harness solutions.

Cassopolis, MI

Based in Cassopolis, MI, EQ Systems operates an EQ Harness Factory, specializing in custom wire harnesses. They provide customizable wire gauges and configurations. Their products and services cater to industries including motorhomes, fifth wheels, travel trailers, horse trailers, and custom specialty vehicles.

Des Moines, IA

Based in Des Moines, IA, ETI is a US-based contract manufacturer specializing in custom cable assemblies and wire harnesses. They provide robust interconnect solutions, built to IPC-WHMA-A 620 standards, handling projects from simple to complex large assemblies up to 50 feet for various industrial applications.

Irvine, CA

Based in Irvine, CA, Everlink Technologies provides direct manufacturing services for wire harnesses and power cords. The company also produces a range of pressure switches and sensors for OEM and industrial applications. They offer comprehensive engineering, design, and quality control for their product lines.

Round Rock, TX

East/West Manufacturing Enterprises, based in Round Rock, TX, specializes in custom cable and wire harness assembly services. They offer comprehensive solutions including design assistance, prototyping, high-quality assembly, and rigorous testing. The company supports industries like aerospace, defense, medical devices, industrial automation, and consumer electronics.

Orange County, CA

EXPERT-EMS provides comprehensive cable and wire harness assembly services, offering full turnkey solutions from component procurement to final testing. Their UL/CSA certified manufacturing supports diverse industries including electric vehicle, industrial, life sciences, and military. They emphasize rapid turnaround, delivering prototypes and medium-volume orders in as little as 24 hours.

Horsham, PA

Based in Horsham, PA, Galaxy Wire & Cable, Inc. manufactures custom cable assemblies and wire harnesses. The company provides engineering design services and collaborates with customers from design and prototype stages through large production runs, specializing in custom solutions with low minimum order requirements.

Findlay, OH

Based in Findlay, OH, GSW Manufacturing specializes in producing wire harnesses for diverse industrial and recreational vehicle applications. The company also supplies wire harnesses and sensors to the automotive aftermarket, building on its expertise in the automotive industry.

Houston, TX

Based in Houston, TX, Ionthis Inc manufactures custom cable assemblies and wiring harnesses to specification. Capabilities include over molds, ribbon cable assemblies, power cords, and RF cable assemblies, along with custom machined or molded connectors. They also provide comprehensive plastic injection molding, machining, and fabrication services.

Austin, TX

Based in Austin, TX, iRex is a custom cable manufacturer specializing in cable assemblies. The company provides comprehensive services including engineering, prototyping, tooling, testing, and production. iRex is outfitted to manufacture cable assemblies at scale, focusing on quality products.

Mankato, MN

Based in Mankato, MN, Kato Cable specializes in manufacturing wire harnesses, cable assemblies, electro mechanical assemblies, and battery cables. The company focuses on building custom solutions designed for performance and reliability across various industrial applications.

Franklin, OH

Based in Franklin, OH, Koehlke Components, Inc. engineers and manufactures custom cable assemblies and wire harnesses. They produce a broad range of configurations, including Coaxial/RF, Fiber Optic, and Military applications, handling high-mix, low-volume, and large orders. All manufacturing occurs onsite in their Ohio headquarters to precise customer specifications.

Brisbane, CA

LeeMAH Electronics manufactures custom cable and complex harness assemblies, offering services such as soldering, crimping, and automated wire cutting and stripping. They are an ISO 9001:2015 and AS9100D certified manufacturer, serving industries like medical, military, and transportation. The company produces various cable types, including coaxial and multi-conductor assemblies.

Tomball, TX

Based in Tomball, Texas, M3 Distribution offers over 20 years of experience in custom cable assembly and wire harness manufacturing. They specialize in building configurations from simple assemblies to complex harnesses, focusing on low to medium-volume applications. M3 serves various industries including military, medical, oil & gas, and transportation.

Vandalia, OH

Based in Vandalia, OH, Manufactured Assemblies Corp., LLC. is a full-service contract manufacturer specializing in wire harnesses, cable assemblies, and electromechanical assemblies. The company provides comprehensive manufacturing solutions, supporting diverse industries with high-quality components for complex systems.

Lewisville, TX

Based in Lewisville, TX, MilesTek provides on-demand custom cable assemblies, offering quick turnaround manufacturing. Their in-house engineering staff custom designs, optimizes, or builds to customer prints. Operating from a dedicated Lewisville manufacturing facility, they utilize skilled technicians to produce high-quality products and ensure on-time delivery.

MilSpec Wiring manufactures custom wire harnesses, providing tailored solutions for various applications. They allow customers to request quotes for specific design requirements. The company's name suggests expertise in high-reliability and potentially military-grade or aerospace wiring, catering to demanding industrial and commercial sectors.

Kingston, NY

MiniProto, located in Kingston, NY, manufactures USA-made custom wire harnesses with no minimum order requirements. They provide an online configurator for instant pricing or accept client-uploaded designs. The company offers quick production, with shipments in as little as five days, advising early contact for lead times.

Dayton, OH

Based in Dayton, OH, Mirac Tabtronics manufactures electronic wire harnesses and cable assemblies. Their products are vital components in control boxes, control panels, and integrated into finished goods across various industries. They provide essential electrical connectivity, ensuring reliable performance for complex systems and products.

MJM Industries manufactures custom wire harnesses and cable assemblies, from high to low volume. They utilize equipment and personnel to process most wire and cable types with various terminations and connectors. The company specializes in delivering reliable, high-quality products for any demanding application.

Fresno, CA

Based in Fresno, CA, Murdoc Technology specializes in the manufacturing of wire harnesses and cable assemblies. The company utilizes advanced equipment and manufacturing techniques to produce custom solutions for its clients.

Garland, TX

Based in Garland, TX, NCA TX directly manufactures high-performance wire harnesses and cable assemblies. They also provide printed circuit board and electro-mechanical assembly, offering complete box build production services. NCA TX serves diverse industries such as Defense/Aerospace and Medical.

El Paso, TX

Based in El Paso, TX, Northpoint Technologies, Inc. is a wire and cable harness manufacturer. The company designs, develops, and manufactures custom cable assemblies for a wide range of industries. They work from prints, drawings, schematics, or sample prototypes, serving applications like bus communication and industrial equipment.

Gilbert, AZ

Based in Gilbert, AZ, NPI Services, Inc. provides electronics manufacturing services, specializing in high-quality cable and wire harness assemblies. The company also offers custom box builds and PCBA manufacturing for diverse industries, including medical, aerospace, defense, and commercial sectors.

Morgan Hill, CA

Based in Morgan Hill, CA, NPI Solutions is an ISO 9001/13485 certified contract manufacturer. The company specializes in custom cable assemblies and complex discrete wire harnesses. They serve the semiconductor, medical device, robotics, aerospace, and automotive industries with over 20 years of experience.

Santa Monica, CA

Based in Santa Monica, CA, Omega Leads, Inc. manufactures custom wire harnesses and cable assemblies. They offer turnkey solutions for various applications, utilizing robotic equipment. The company serves diverse industries including gaming, electric vehicles, aerospace, military, automotive, and medical.

Burbank, CA

Based in Burbank, California, Pacific Radio Electronics specializes in providing custom cable solutions. They offer direct manufacturing services for clients needing specialized wiring assemblies, building custom cables to meet various application requirements. The company focuses on delivering tailored connectivity solutions.

Cambridge, MN

Based in Cambridge, MN, PARK Manufacturing specializes in custom American-made wiring harnesses, cable assemblies, and electro-mechanical assemblies. The company provides solutions for diverse sectors like agricultural, recreational vehicles, industrial, automotive, military, and medical. They utilize high levels of automation to ensure cost-competitive and consistent manufacturing.

Austin, TX

Based in Austin, Texas, Phoenix-Lamar Corporation is a custom manufacturer specializing in molded cable assemblies, electrical cables, custom wire harnesses, and specialty wire. They provide tailored solutions for various industrial and commercial applications, leveraging their manufacturing capabilities to produce high-quality interconnect products.

Garland, TX

Based in Garland, TX, Pinner Wire & Cable, Inc. is an ISO 9001:2015 certified manufacturer of custom cable and wire harness assemblies. Since 1991, the company has served diverse industry customers, adhering to UL/CSA approvals and IPC/WHMA-A-620 compliance, building products to specific design requirements.

Englishtown, NJ

Quadrangle Products Inc. manufactures custom cable assemblies and wire harnesses. They provide services for products interfacing with LCDs, controllers, single board computers, embedded motherboards, backlights, inverters, and LED drivers, offering comprehensive custom wire harness capabilities.

Anaheim, CA

Based in Anaheim, CA, Rapid Manufacturing is a global electronics manufacturing company. It specializes in custom-designed wire and cable harnesses, electro-mechanical, and box build assemblies for OEMs. The company offers engineering services and material management, ensuring quality and cost-effective solutions for its partners.

Based in St. Louis, MO, Ric-Tronics specializes in custom cable assemblies and wire harnesses. The company delivers tailored OEM and ODM electronics solutions, serving industries such as industrial manufacturing, automotive, telecommunications, POS systems, and HVAC.

El Centro, CA

Based in El Centro, CA, RoGar Manufacturing, Inc. is a contract manufacturing company providing custom cable and wire harness assemblies. They build complex, medium to high volume products for the semiconductor industry, leveraging over 40 years of experience in manufacturing services.

Chagrin Falls, OH

Based in Chagrin Falls, OH, RPC Electronics specializes in custom wire harnesses and panel building. They serve industrial, medical, and commercial markets with state-of-the-art manufacturing technologies and automated systems. Capabilities include automotive, power, and ribbon cables, handling simple to complex projects for various OEMs.

Racine, WI

Based in Racine, WI, RPI Harness Manufacturing specializes in designing and building custom wire harnesses and PCBs. The company is ISO 9001-2015 certified, ensuring high-quality manufacturing processes to meet exact specifications for various industrial applications.

North Salt Lake, UT

Based in North Salt Lake, UT, Salt Lake Cable & Harness specializes in custom cable assemblies, wire harnesses, and electromechanical assemblies. With over 30 years of experience, the company produces connectivity solutions for simple and highly complex applications, also offering prototyping and box build services.

Redondo Beach, CA

Senra Systems, based in Redondo Beach, CA, manufactures high-quality wire harnesses by integrating design, data, and production processes. Their advanced technology provides real-time visibility, ensuring faster lead times from prototypes to full-rate production. They offer design support and precision-engineered automation for efficient, accurate builds.

Hayward, CA

Based in Hayward, CA, SF Cable manufactures custom cable assemblies and wiring harnesses. They offer US-based assembly services from prototype to large-volume orders, serving industrial, medical, aviation, military, and consumer electronics applications. All products are 100% electronically tested according to IPC/WHMA-620 standards for precise and high-grade quality.

Cincinnati, OH

Based in Cincinnati, OH, Strand Products specializes in manufacturing custom fitting configurations for wires, strands, and cables. They engineer custom assemblies requiring processes like stamping, turning, milling, and molding. The company serves Medical, Commercial Flight, Space Flight, and Military/Defense sectors, holding AS9100 and ISO9001 certifications.

Auburn, WA

Based in Auburn, WA, Technical Cable specializes in custom wire harnesses and cable assemblies. They provide comprehensive manufacturing solutions, including M12 and RF cable manufacturing, alongside cable molding capabilities. The company is UL certified for cable assembly and holds ITAR certification.

Anaheim, CA

Based in Anaheim, CA, Technotronix manufactures custom cable and wire harness assemblies for diverse industrial applications. With over 44 years of experience, they focus on delivering high-performance wire harness assemblies and signal transmission products. Their process combines precision engineering and advanced technology.

Bellefontaine, OH

Based in Bellefontaine, OH, The Ohio Wire Harness LLC specializes in manufacturing high-quality custom cable assemblies. With 24 years of industry experience, the company provides reliable wire harness solutions for various commercial and industrial applications.

Oconto, WI

Based in Oconto, WI, US Wire & Harness manufactures custom wire harness, cable, and control panel assemblies. They specialize in low voltage and molded cable assemblies, offering design, prototyping, and Kanban/VMI services. The company serves diverse sectors including off-road equipment, heavy-duty truck, military, and industrial.

Dayton, OH

Based in Dayton, OH, Venture Mfg. Co. provides custom cable assemblies and wire harnesses, emphasizing high quality and competitive pricing for bulk purchases. The company offers manufacturing services and also provides direct interchanges for specific linear actuators, serving industrial clients with custom solutions.

Austin, TX

Based in Austin, TX, VIRTEX designs, engineers, and manufactures custom cable and wire harness assemblies. They provide prototype, low, and high volume production for various markets, including military & aerospace, medical, and industrial. VIRTEX holds extensive certifications such as AS9100, ISO 9001, and ITAR.

Dallas, TX

Based in Dallas, TX, Wallace Electronics is a Woman Owned Manufacturer of custom cable assemblies and electronic enclosures. They provide wiring harnesses, copper assemblies, and other custom cables. With over 40 years of expertise, the ISO 9001:2015 certified company serves industrial, military, and medical markets.

Spartanburg, SC

Based in Spartanburg, SC, Winar Connection specializes in manufacturing high-quality custom wire harnesses. The company addresses diverse wire harness needs for both large and small-scale projects, ensuring precise specifications are met for various industrial and commercial applications.

Akron, OH

Based in Akron, OH, Mueller Electric manufactures standard and custom cable assemblies. They utilize in-house engineering and production to provide M8, M12, and other industrial cables made in the USA. These products are commonly used in factory automation applications for sensors, actuators, and various industrial equipment.

Houston, TX

XACT Engineered Manufacturing Solutions, based in Houston, TX, specializes in custom cable assembly and harness manufacturing. They provide high-reliability molded and non-molded cable assemblies. Engineered for harsh environments, the company serves military, aerospace, mining, oil & gas, transportation, and rugged industrial markets.

Fremont, CA

Based in Fremont, CA, Y.C. Cable manufactures custom cable assemblies and wire harnesses for low-volume, high-mix, and high-volume needs. They serve diverse industries including automotion, robotics, automotive (EVs, hybrid, heavy-duty), medical, and consumer electronics, providing high-quality, ISO-certified solutions.

Carson, CA

Based in Carson, CA, ACME PCB Assembly manufactures wire harnesses and cable assemblies. The company utilizes Schleuniger technology for precision cutting, stripping, and processing of wires and cables. They also provide PCB assembly and related add-on services, adhering to IPC WHMA-A-620 standards.

Suwanee, GA

Based in Suwanee, GA, Sienna Corporation specializes in custom cable and wire harness assemblies for commercial and Mil-spec applications. Their integrated facility offers automatic wire processing, over-moulding, and harness braiding, adhering to IPC 620 standards. They serve industries including aerospace, automotive, healthcare, and industrial sectors.

Suwanee, GA

Based in Suwanee, GA, Avalon Technologies manufactures precision-engineered, high-quality cable and wire harnesses. They offer full-service capabilities, including engineering and testing. Their facility utilizes advanced over-molding, soldering, and harness braiding technologies to create durable assemblies for various industrial and specialized applications.

Macedonia, OH

Based in Macedonia, OH, Amphenol TPC Wire & Cable provides custom industrial wire and cable solutions. They specialize in high-performance cable, pre-wired pendant box assemblies, and slip ring harnesses for harsh environments. The company also offers cable carrier systems and custom electrical enclosures.

Houston, TX

Based in Houston, TX, XACT Technologies USA specializes in designing, manufacturing, and delivering custom cables and product solutions. The company provides cable assemblies, wiring harnesses, and panel assemblies for a wide variety of industries across North America, focusing on innovative and customized solutions for their clients.

Elgin, IL

Based in Elgin, IL, Aeromotive is a US manufacturer of custom wire harnesses and connectors. The company provides new and remanufactured solutions for automotive, commercial, and aviation/aerospace sectors. They offer custom one-off harnesses for diverse applications, including heavy duty, agricultural, and construction equipment.

Torrington, CT

Based in Torrington, CT, Altek Electronics is a contract manufacturer providing turnkey solutions for OEMs. They build custom wire and cable harness assemblies, integrating them with PCB and mechanical assemblies for medical, industrial, commercial, and aerospace industries. The company utilizes automation and WHMA-A-620 certified personnel.

Farmingdale, NY

Based in Farmingdale, NY, GCG CPS specializes in providing a complete range of wire harness and cable assembly solutions. The company offers both in-stock components and fully customized builds, supporting unique requirements across various industrial and commercial sectors.

Anaheim, CA

Based in Anaheim, CA, Beach Wire & Cable specializes in providing high-quality custom cable assemblies and wire harnesses. They serve a wide variety of industries, focusing on engineered solutions for diverse applications.

Brunswick, GA

Based in Brunswick, GA, Boat Wire USA manufactures custom wire harnesses, specializing in marine applications. They offer braided sleeve harnesses in multiple colors and support various wire gauges (16, 14, 12, 10 AWG). Customers can select from a range of wire colors to meet their specific size and quantity requirements.

Boomslang Fabrication specializes in wire harness, specialty cable, and custom connector manufacturing for aftermarket engine management systems, automotive racing, off-road vehicles, fleet retrofits, alternative fuel conversions, and marine performance industries. All products are engineered and manufactured in the USA.

San Diego, CA

Based in San Diego, CA, CableConn Industries specializes in providing quickturn custom interconnect solutions, cable assemblies, and wire harnesses. With over 25 years of experience, the company serves the high-tech industry, offering engineering support to transform customer concepts into deliverable solutions.

Yaphank, NY

Based in Yaphank, NY, Cables Unlimited manufactures custom cable assemblies, custom wire harnesses, fiber optic cables, and custom hybrid cables. The company provides tailored solutions for various applications and serves diverse industries.

Dayton, OH

Based in Dayton, Ohio, Cable and Control Solutions specializes in manufacturing custom cable assemblies and wiring harnesses. They focus on high-motion and high-flex cables for industrial and factory applications. The company provides value-added services, including assembly, kitting, component prepping, and engineering support for diverse projects.

Fremont, CA

Based in Fremont, California, Compass Made specializes in electromechanical manufacturing and assembly, offering custom cable and wire harness assemblies. The company provides solutions for industries including medical, industrial, and defense, utilizing automated equipment for precision manufacturing and adhering to stringent industry standards.

Consolidated Electronic Wire & Cable manufactures custom wire harnesses for multi-wire systems. With over a century of experience, they provide expert design and engineering services for industries like aerospace, automotive, medical, and telecommunications. The company offers a wide range of component and material options with stringent quality control.

Custom Cable USA specializes in manufacturing custom-built wire harnesses, offering various braided sleeve colors and multiple wire gauge options from 16 AWG down to 10 AWG. They provide a selection of wire colors for tailored solutions. The company also offers trolling motor repair services.

Muskego, WI

Based in Muskego, WI, Custom Wire Industries is a CSA and UL certified manufacturer of wire harnesses and custom cable assemblies. They specialize in solutions engineered for electromechanical applications, serving industries like military and medical. The company also provides electromechanical devices and custom fiber optic cable assemblies.

Sidney, OH

Based in Sidney, OH, Everyday Technologies Inc. manufactures value-added cable assemblies, wire harnesses, and complex contract manufacturing services. They produce simple to complex harnesses with various breakouts, connectors, and terminations. The company also provides sheet metal fabrication processes like blanking, stamping, forming, welding, and finishing.

Houston, TX

Gilmore Global Instruments, based in Houston, TX, designs and manufactures custom wire harnesses for mid and small-sized OEMs. Their ISO 9001:2015 certified facility provides mass production capabilities for large volumes, utilizing automated equipment for cutting, stripping, and crimping. They also offer electrical engineering services.

Santa Ana, CA

Based in Santa Ana, California, International Component Technology custom manufactures cable harness assemblies and flat panel display cables. They offer design assistance and produce items in-house in the USA. Products are tested for continuity, shorts, and opens, meeting RoHS, REACH, UL, and CSA compliance.

Fort Worth, TX

Based in Fort Worth, Texas, InterConnect Wiring specializes in supplying electrical wiring harnesses, power distribution panels, and ground support equipment. The company is a Lockheed Martin licensee for F-16 electrical products, serving the military aerospace industry with fast turnaround and developmental programs.

La Jolla, CA

Based in La Jolla, CA, IMA specializes in custom cable and wire harness assembly. With over 29 years of experience, the company designs, assembles, and delivers high-quality wire harnesses. They serve diverse industries, including medical, automotive, and electronics, providing tailored solutions for low to high-volume production.

Franklin, MA

Based in Franklin, MA, JEM Electronics Inc. manufactures custom wire harnesses and cable assemblies. They engineer precision solutions for complex electrical systems, designed for protection against heat, friction, and moisture. JEM serves demanding industries like medical technology, robotics, defense, and semiconductors, ensuring durability and reliability.

Dallas, TX

Based in Dallas, TX, Mar-Lan Industries provides contract manufacturing services, specializing in custom wire assemblies and full wire harness production. They utilize automated machines for reliable electrical connections. The company also offers injection and insert molding, computerized engraving, and retail packaging services.

Based in St. Augustine, FL, Meridian Cable Assemblies designs and manufactures custom cable assemblies, coil cords, and wire harnesses. They specialize in overmolded, shielded, and custom wire harnesses, serving diverse industries. The company offers precision-engineered solutions for both small batch and full production, focusing on specific configurations, durability, and compliance.

Fort Worth, TX

Based in Fort Worth, TX, Painless Performance Products specializes in manufacturing American-made automotive electrical products. The company builds a wide range of top-quality wire harnesses, including chassis, engine management, and EFI harnesses, designed for customizable applications in various vehicles such as Chevrolet, Jeep, and Ford, serving the automotive aftermarket.

Precision Cable Assemblies manufactures a variety of wire harnesses, battery cables, and custom molded cable assemblies. They offer design, prototyping, and program management, serving Original Equipment Manufacturers across construction, consumer appliance, and agricultural sectors. Capabilities include in-house injection molding and over-molding.

San Antonio, TX

Based in San Antonio, TX, PED Enterprises specializes in wire harness design and manufacturing. They operate US-based facilities, offering contract manufacturing for small, medium, and high-volume production. Their engineering design services include CAD-CAM for prototyping and developing cost-effective solutions, focusing on zero-defect quality with automated and manual production.

Rancho Cordova, CA

Based in Rancho Cordova, CA, ResQ Manufacturing specializes in custom cable assembly and electro-mechanical manufacturing. With over 15 years of experience, the company offers comprehensive wire harness manufacturing services. They are dedicated to supporting a vast variety of industries, focusing on quality, on-time delivery, and competitive pricing.

Costa Mesa, CA

Based in Costa Mesa, CA, Technical Cable Concepts, Inc. manufactures custom cable assemblies and wire harnesses. Utilizing a full-service facility, the company provides comprehensive assembly solutions for various industries, including medical, industrial, and aerospace, adhering to strict quality standards.

Brookfield, CT

Based in Brookfield, CT, Wiring Specialties manufactures plug-and-play wiring harnesses for automotive engine swaps. They specialize in custom harnesses for Nissan, BMW, Datsun, Mazda, and Chevrolet chassis adapting to LS and JDM engine integrations. The company also offers complementary ECUs and conversion kits, with products proudly made in the USA.

Fremont, CA

Based in Fremont, CA, Wislab EMS operates a 50,000 square foot production facility for manufacturing electronic cable assembly projects. They specialize in creating custom wire harnesses and cable assemblies to meet diverse industrial and commercial needs.

Twinsburg, OH

Based in Twinsburg, OH, WRWP, LLC manufactures and supplies wire harnesses, cables, and custom components. The company has built harnesses domestically since 1987, with production facilities in Ohio, Florida, and South Carolina. It offers both domestic and offshore capabilities for various volume and mix requirements.

Cablesys is an OEM solution provider specializing in manufacturing custom low voltage, interconnect, and data network cables. They build custom fiber optic and Ethernet cable assemblies, including harness cables. The company serves diverse industries like aerospace, automotive, medical, and robotics.

Paulding, OH

Based in Paulding, OH, InSource Technologies provides contract manufacturing services. The company specializes in comprehensive solutions for various manufacturing needs, likely encompassing electronic assembly and wire harness production for industrial B2B customers.

Anaheim, CA

Based in Anaheim, CA, SAI Corporation manufactures custom wire harnesses and multi-conductor cable assemblies for businesses. They support diverse industries, including aerospace, medical devices, industrial, transportation, and semiconductor sectors. Additional services include electromechanical, box build assemblies, and testing.

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How to Choose a Company

  • Verify their adherence to IPC/WHMA-A-620 for your application's required class (e.g., Class 2 for industrial, Class 3 for life-support or mission-critical systems), and confirm they have certified trainers and inspectors on staff.
  • Assess their in-house capabilities for crucial processes like overmolding, potting, ultrasonic welding, or automated wire cutting and crimping; outsourcing these specialized operations can introduce quality control risks and lengthen lead times.
  • Investigate their connector and component sourcing strategies, ensuring they have robust relationships with authorized distributors and a plan for managing long lead times or potential obsolescence for specialized connectors and wire types – a common gotcha that can stall production.
  • For regulated industries such as medical (ISO 13485) or aerospace (AS9100), demand specific, industry-recognized certifications beyond general ISO 9001, and confirm their ability to maintain strict material traceability and provide comprehensive First Article Inspection (FAI) reports.

Frequently Asked Questions

Why is there such a significant price difference between my prototype wire harness and a high-volume production quote?

Prototype wire harnesses are almost entirely hand-assembled, involving significant manual labor for cutting, stripping, crimping, and routing, often without dedicated tooling. Production pricing benefits from economies of scale on raw materials like wire and connectors, automated processing equipment (e.g., automatic cut-and-strip machines, semi-automatic crimpers), and optimized assembly fixtures. Non-Recurring Engineering (NRE) costs for tooling and programming are amortized over larger volumes, making the per-unit cost drop dramatically.

What are the most critical specifications I need to provide to a wire harness manufacturer for an accurate quote and reliable product?

For an accurate quote and reliable product, you must provide a comprehensive Bill of Materials (BOM) listing all connectors, terminals, wires (including wire gauge and color), and any other components with specific manufacturer part numbers (MPNs). Additionally, detailed 2D drawings are crucial, showing overall lengths, breakout dimensions, strip lengths, pinouts, required labeling, and specific assembly notes like required strain relief or bundling methods. Clearly state target annual volumes, environmental operating conditions, and any required electrical testing (e.g., 100% continuity, hipot, insulation resistance).

How important is IPC/WHMA-A-620 certification, and what does it mean for my wire harnesses?

IPC/WHMA-A-620 is the industry-recognized standard for the acceptability of cable and wire harness assemblies, covering everything from wire preparation and crimping to soldering, bundling, shielding, and final assembly. Its importance depends on your application's criticality. It defines three classes: Class 1 (General Electronic Products), Class 2 (Dedicated Service Electronic Products), and Class 3 (High Reliability Electronic Products). A manufacturer adhering to A-620 ensures consistent, high-quality workmanship, reduced defects, and ultimately, greater reliability and longevity for your wire harnesses, especially for mission-critical or safety-sensitive applications that demand Class 3 compliance.

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