Top Wire Harness Companies in California

California is a major hub for advanced electronics manufacturing, aerospace innovation, and industrial automation. The state is home to several top wire harness companies providing high-quality custom cable assemblies, wiring harness manufacturing, electromechanical assembly, and full electronics manufacturing services (EMS).

Wire harnesses play a critical role in modern electrical systems by organizing and protecting wires used in automotive systems, aerospace equipment, medical devices, industrial machinery, robotics, and telecommunications equipment. Reliable wire harness manufacturers ensure durability, signal integrity, and long-term performance in demanding environments.

This guide highlights the top wire harness companies in California, detailing their services, industries served, capabilities, and certifications.

Top Wire Harness Companies in California

1. Stracon, Inc.

Location

California, USA

Overview

Stracon, Inc. is a trusted wire harness and electronics manufacturing company specializing in custom cable assemblies and electromechanical assembly solutions. The company supports high-reliability industries requiring precision wiring systems.

Detailed Services

• Custom wire harness manufacturing
• Cable assembly services
• Electromechanical assembly
• Box build assembly
• SMT and PCB assembly
• Testing and inspection services

Industries Served

• Aerospace and defense
• Industrial automation
• Telecommunications
• Automotive electronics

Capabilities

Stracon provides prototype to production wire harness assembly with strict quality control, advanced testing procedures, and scalable manufacturing capabilities.

Certifications

• ISO certified
• IPC compliant
• RoHS compliant

2. Digicom

Location

Oakland, California, USA

Overview

Digicom is known for high-reliability electronic manufacturing and custom cable harness assembly services. The company offers integrated manufacturing solutions for complex electrical systems.

Detailed Services

• Custom wire harness assembly
• Cable assembly manufacturing
• PCB assembly
• Prototype development
• Testing and inspection

Industries Served

• Aerospace
• Defense
• Medical devices
• Industrial electronics

Capabilities

Digicom specializes in precision wire harness fabrication, flexible circuit integration, and advanced quality inspection for high-performance applications.

Certifications

• ISO certified
• IPC standards compliant
• RoHS compliant

3. Cable Conn Industries

Location

California, USA

Overview

Cable Conn Industries is a leading provider of custom wire harnesses and cable assemblies designed for industrial and commercial applications.

Detailed Services

• Custom cable harness manufacturing
• Power cable assemblies
• Signal cable assemblies
• Control panel wiring
• Prototype and production runs

Industries Served

• Industrial equipment
• Telecommunications
• Automotive
• Commercial electronics

Capabilities

The company offers high-volume and low-volume production, quick turnaround times, and advanced electrical testing services.

Certifications

• ISO certified processes
• UL compliant assemblies
• RoHS compliant

4. CTEMS Company

Location

California, USA

Overview

CTEMS Company provides contract electronics manufacturing services, including wire harness and cable assembly manufacturing for industrial clients.

Detailed Services

• Wire harness assembly
• Cable assembly services
• Box build assembly
• PCB assembly integration
• Functional testing

Industries Served

• Industrial automation
• Consumer electronics
• Telecommunications
• Commercial systems

Capabilities

CTEMS offers full turnkey manufacturing with integrated design support and supply chain management.

Certifications

• ISO compliant
• IPC standards compliant
• RoHS compliant

5. Cirtronics Corporation

Location

Serving clients nationwide including California

Overview

Cirtronics Corporation is an electronics manufacturing services provider offering custom cable assemblies and wire harness manufacturing for complex systems.

Detailed Services

• Custom wire harness fabrication
• Electromechanical assembly
• System integration
• Product lifecycle management
• Testing and quality assurance

Industries Served

• Medical devices
• Industrial systems
• Robotics
• Aerospace

Capabilities

Cirtronics specializes in complex cable harness systems requiring precision manufacturing and strict quality control.

Certifications

• ISO certified
• FDA registered (medical manufacturing support)
• IPC compliant

6. Cristek

Location

California, USA

Overview

Cristek is a high-reliability electronics and cable harness manufacturer serving aerospace and defense sectors.

Detailed Services

• Aerospace wire harness manufacturing
• Military cable assemblies
• PCB assembly
• Box build and system integration
• Testing and validation

Industries Served

• Aerospace
• Defense
• Space systems
• Military electronics

Capabilities

Cristek provides high-reliability wiring harness systems meeting strict aerospace and military standards.

Certifications

• AS9100 certified
• ITAR registered
• ISO certified
• IPC compliant

7. BCP Systems

Location

California, USA

Overview

BCP Systems delivers custom cable harness manufacturing and electronic assembly services for industrial and commercial applications.

Detailed Services

• Custom wire harnesses
• Cable assembly production
• Electrical panel wiring
• Product assembly

Industries Served

• Industrial automation
• Commercial electronics
• Automotive systems

Capabilities

BCP Systems provides prototype to high-volume manufacturing with advanced inspection processes.

Certifications

• ISO compliant
• RoHS compliant

8. Gavial Engineering & Manufacturing Inc

Location

California, USA

Overview

Gavial Engineering & Manufacturing Inc offers precision engineering, cable harness manufacturing, and custom electronic assembly services.

Detailed Services

• Custom wiring harnesses
• Cable assembly services
• Precision machining integration
• Product development support

Industries Served

• Aerospace
• Industrial equipment
• Automotive
• Electronics

Capabilities

The company integrates precision engineering with custom wire harness fabrication for complex assemblies.

Certifications

• ISO compliant
• IPC standards compliant

9. D C Electronics

Location

California, USA

Overview

D C Electronics provides cable assembly, wire harness manufacturing, and contract electronics manufacturing services.

Detailed Services

• Custom wire harness assembly
• Cable manufacturing
• PCB assembly integration
• Testing and inspection

Industries Served

• Telecommunications
• Industrial systems
• Consumer electronics

Capabilities

The company offers scalable production, rapid prototyping, and quality inspection services.

Certifications

• ISO certified
• RoHS compliant

10. De Leon Enterprises

Location

California, USA

Overview

De Leon Enterprises specializes in custom wire harness manufacturing and cable assembly solutions for industrial and commercial clients.

Detailed Services

• Wire harness fabrication
• Custom cable assemblies
• Electrical wiring solutions
• Assembly and integration services

Industries Served

• Industrial automation
• Automotive systems
• Commercial electronics

Capabilities

The company provides custom solutions tailored to client specifications with strict quality control.

Certifications

• ISO compliant
• RoHS compliant

Why Choose California Wire Harness Manufacturers?

Wire harness companies in California offer several competitive advantages:

• Advanced manufacturing infrastructure
• Skilled engineering workforce
• Aerospace and defense ecosystem
• Access to technology innovation hubs
• Strict compliance with quality and safety standards

California wire harness manufacturers provide comprehensive solutions including custom cable assemblies, electrical wiring systems, control panel wiring, and electromechanical assembly for high-performance applications.

Conclusion

The demand for high-quality wire harness manufacturing continues to grow across industries such as aerospace, automotive, medical devices, telecommunications, and industrial automation. Companies like Stracon, Digicom, Cristek, and others in California provide advanced cable assembly solutions, precision wiring harness fabrication, and full contract manufacturing services.

Businesses seeking reliable wire harness companies in California can benefit from the technical expertise, advanced capabilities, and quality certifications offered by these leading manufacturers.