Contents
1. WellPCB
WellPCB stands apart by solving a core challenge for industrial equipment OEMs: supply chain fragmentation. By uniquely integrating high-quality wire harness manufacturing with in-house PCB assembly and box build services, they act as a single, accountable partner for your entire electro-mechanical system. Its manufacturing model emphasizes process discipline, with wire cutting, crimping, routing and inspection handled internally to maintain quality and consistency across wire harness assemblies.
The company is certified to ISO 9001 and follows WHMA-aligned workmanship practices, reinforcing quality assurance and inspection across custom wire harness assembly builds. A differentiating factor is WellPCB’s ability to integrate harness manufacturing with PCB assembly and box build services, allowing equipment manufacturers to consolidate different kinds of assembly under one manufacturing company.
This turnkey approach supports predictable lead times, tighter supply chain coordination and exact specifications for industrial applications. In addition, they source their components from well-known providers like Mouser and Amphenol, giving you peace of mind that your wire harnesses will be top-quality.
| Pros | Cons |
|---|---|
| ✅ Simplified Quoting & Invoicing: Get one transparent price for your entire sub-assembly, not three different quotes from three vendors. | ❌ High demand can occasionally affect scheduling during peak production periods. |
| ✅ Single Point of Contact: Eliminate the communication chaos of managing separate PCB, cable, and assembly suppliers. | |
| ✅ Ability to support rapid design changes without restarting the full assembly cycle. |
2. Cables Unlimited
Cables Unlimited focuses on industrial wire harness solutions built for reliability in demanding environments. Its wire harness manufacturing approach includes durable materials, controlled termination and clear documentation to support long-running industrial programs. The company supports wiring and cable assemblies used in power distribution, telecommunications and industrial machinery.
Cables Unlimited operates under ISO 9001-certified and IPC/WHMA-A-620 quality systems and applies structured inspection processes to ensure quality products across production runs. Their cables are proudly made in the USA, bringing peace of mind to local buyers who want to support local businesses and buy high-quality products.
| Pros | Cons |
|---|---|
| ✅ Long-standing market presence supports confidence in supply continuity. | ❌ Less emphasis on advanced customization for highly complex harness layouts. |
| ✅ Stable domestic manufacturing base reduces logistics complexity for North American customers. | |
| ✅ Familiarity with legacy industrial wiring formats still used in older equipment. |
3. Laketronics
Laketronics Inc. is a specialist manufacturing company serving industrial and electromechanical markets with custom wire harness and cable assembly services. They’ve been supporting industrial machinery and control systems for over 45 years with robust wiring capable of handling vibration, abrasion and continuous operation.
The company maintains ISO 9001 certification and emphasizes inspection and quality assurance throughout the assembly process. Their combination of wire harness manufacturing and electronic assembly services allows for closer coordination between electrical interconnect and system-level integration.
This makes it suitable for equipment manufacturers seeking solutions tailored to complex electrical and electronic systems rather than standalone harness builds.
| Pros | Cons |
|---|---|
| ✅ Hands-on project support appeals to teams needing close coordination. | ❌ Smaller operational scale may limit very large production runs. |
| ✅ Comfortable handling low-volume, high-mix assembly programs. | |
| ✅ Flexible scheduling for mixed production and repair work. |
4. Harness Pro
HarnessPro focuses on heavy-duty wiring for industrial and agricultural equipment. Their harness manufacturing approach prioritizes mechanical protection, strain relief and abrasion resistance for wiring exposed to harsh operating conditions.
The company aligns their processes with ISO 9001 quality management systems and emphasizes in-house assembly control to ensure quality and consistency. HarnessPro mainly serves the Southern African industrial sector, including mining and industrial equipment.
Interestingly, their factory is fully “green”, running entirely on solar power. Eco-conscious customers will find this to be an extra advantage.
| Pros | Cons |
|---|---|
| ✅ Deep familiarity with field-installed harness requirements. | ❌ Geographic focus may limit support for global rollouts. |
| ✅ Strong understanding of regional industrial compliance expectations. | |
| ✅ Designs consider ease of installation and maintenance in remote locations. |
5. Cloom Tech
Cloom Tech is known for their engineering-driven approach to custom wire harness manufacturing for industrial, automotive and aerospace and defense programs. Their wire harness assemblies are built around exact specifications, with strong emphasis on documentation, revision control and inspection.
Cloom Tech holds ISO 9001 certification and follows WHMA workmanship standards, supporting quality assurance across complex custom wire and cable assemblies. A unique strength is its responsiveness during early-stage engineering, making it well suited for projects that require design refinement before scaling. This capability supports automation systems and control panels where wiring layouts evolve alongside mechanical design.
| Pros | Cons |
|---|---|
| ✅ Good fit for projects with multiple revision cycles. | ❌ Not optimized for ultra-high-volume commodity harnesses. |
| ✅ Adaptable to unconventional form factors. | |
| ✅ Clear communication during design clarification reduces rework risk. |
6. Wiringo
Wiringo focuses on flexibility within industrial wire harness manufacturing, supporting custom projects where specifications change frequently. With rapid prototyping and no MOQ, they’re an excellent choice for sampling and iterating before going ahead to mass production.
Wiringo operates under ISO 9001-certified processes and emphasizes inspection and documentation to ensure quality despite lower-volume production. The company shines when it comes to low-to-mid volume builds, making it a practical option for equipment manufacturers that need rapid iteration without committing to large production runs.
| Pros | Cons |
|---|---|
| ✅ Agile production model supports fast turnaround for changing requirements. | ❌ Limited economies of scale for large production volumes. |
| ✅ Accessible for startups and smaller equipment manufacturers. | |
| ✅ Good option for pilot builds before locking designs. |
7. Govolt
GoVolt specializes in industrial wiring and cable harness manufacturing for energy, automation and power supply applications. Their work supports electrical power systems, battery cables and power distribution assemblies where reliability and safety are essential.
The company follows ISO 9001 quality management practices and places strong emphasis on quality and consistency during assembly and inspection. A distinguishing feature is GoVolt’s focus on energy-related industrial applications, positioning it well for projects involving renewable systems, power electronics and industrial power infrastructure requiring robust harness solutions tailored to demanding use cases.
| Pros | Cons |
|---|---|
| ✅ Strong familiarity with power-focused wiring challenges. | ❌ Narrower application focus than general-purpose harness manufacturers. |
| ✅ Designs account for thermal and load-related stress factors. | |
| ✅ Experience aligns well with emerging energy technologies. |
What to Look for in Industrial Wire Harness Manufacturers
Selecting industrial wire harness manufacturers requires evaluating how well they manage complexity, scale and long-term reliability. Industrial systems depend on wiring and cable assemblies that must perform consistently in demanding operating environments.
Manufacturing Control and Process Discipline
Look for manufacturers with controlled harness manufacturing processes that manage cutting, crimping, routing and assembly in-house. Strong process discipline supports quality and consistency across wire harness assemblies.
Material and Component Management
Reliable manufacturers control wire, cable, terminals and connectors to ensure high-quality wire and stable electrical power delivery. Consistent material management reduces variation across production runs.
Customization and Engineering Capability
Industrial equipment often requires custom wire harness solutions built to exact specifications. Manufacturers should support custom wire harness assembly, including custom overmolded features for complex electromechanical systems.
Testing, Quality Assurance and Inspection
Inspection and quality assurance processes should verify continuity, insulation integrity, abrasion resistance and overall safety and performance. This protects electrical and electronic systems from premature failure.
Scalability and Turnaround Performance
A capable manufacturing company supports prototypes, low-volume builds and scaled production with predictable lead times and turnaround times. This flexibility helps equipment manufacturers stay on schedule across various industries.
System-Level Integration Capability
Does the manufacturer see the harness in isolation, or as part of a larger system? The most valuable partners can manage the entire electro-mechanical sub-assembly, including the PCB and final box build. This turnkey approach reduces your supply chain risk, simplifies logistics, and ensures perfect compatibility between components.
Back to Top: Top Industrial Wire Harness Manufacturers | Custom Wire Harnesses
