Top Wire Harness Manufacturers in the U.S.A.

Wire harnesses are crucial to the functioning of modern machinery, bundling and routing the wiring that powers vehicles, medical devices, aircraft, appliances, and industrial systems. Often overlooked, these intricate assemblies are critical for safety and performance across a wide range of industries-- from fighter jets to farm equipment. New research from MNI, the nation’s leading source of industrial data, shows that wire harness manufacturers are thriving in several surprising ways—whether it’s in global trade, domestic employment, or diverse ownership. We’ll break down the full stats shortly along with the industry’s top companies, but first, let’s take a look at the basics of the industry.

What Are Wire Harnesses?

Wire harnesses—also known as cable harnesses or wiring assemblies—are organized bundles of wires, terminals, and connectors designed to transmit electrical power or signals. Their primary role is to keep electrical systems organized, protected, and easy to install, especially in complex machinery and electronic equipment.

Rather than running dozens (or hundreds) of loose wires separately, a wire harness groups them into a single unit, often wrapped with insulation, ties, or sleeves. This not only reduces clutter but also improves safety, minimizes installation errors, and protects the wires from vibration, moisture, and abrasion.

You’ll find wire harnesses just about everywhere—inside vehicles, aircraft, medical devices, industrial machinery, and consumer electronics.

Wire Harness Manufacturing Industry Data

MNI, compiler and publisher of the industrial data that powers IndustrySelect, continually collects new data on all U.S. industrial companies. Here are the latest facts and statistics based on data MNI has gathered firsthand from companies in the wire harness industry:

• There are currently 271 manufacturers of wire harnesses and wire harness & cable assemblies in the U.S.
• These companies employ 15,494 workers.
• Wire harness manufacturers are major exporters, with 38% of these companies reporting international distribution, outpacing the average among all manufacturers of 29%.
• Similarly, more wire harness manufacturers are reliant on imports, with 27% importing raw materials, compared to 11% for all manufacturers.
• 5% of wire harness manufacturers are women-owned, more than double the overall average of 2%.
• Minority ownership is also stronger, with 4% of these companies minority-owned, compared to 1% among all manufacturers.
• The Midwest accounts for the most wire harness companies with 44%, followed by the South with 23%. The U.S. West account for 18% and the Northeast 15%.

Top Wire Harness Manufacturers in the U.S.

So what are some of the leading companies in the industry? Based on MNI data, here are the largest wire harness manufacturers in the U.S. by number of employees:

About The Top 10 US Wire Harness Manufacturers

1. Kirby Risk Service Center (Lafayette, IN) - Kirby Risk Service Center specializes in electrical and mechanical manufacturing, offering services such as electrical harnesses, control panels, terminal assemblies, and cables. They focus on providing quality and value-added solutions for Original Equipment Manufacturer (OEM) needs.

2. Matric Group (Seneca, PA) - Matric Group is an expert electronics contract manufacturer with decades of experience, operating out of a 104,000 square-foot facility. They provide reliable, high-quality electronics manufacturing for various industries, including defense, aerospace, and medical devices.

3. Killdeer Mountain Manufacturing, Inc. (Killdeer, ND) - Killdeer Mountain Manufacturing is a leading manufacturer of electronic components for military and aerospace industries, producing high-grade cable assemblies and fiber optic bundles. The companies employs 300 workers at its 128,000 square foot plant.

4. Mercury Electronics (Seven Valleys, PA) - Mercury Electronics has been providing electrical and electronic contract manufacturing services since 1946. They offer a wide array of custom products, including cables, harnesses, panels, and electromechanical assemblies for commercial and military applications.

5. BAE Systems, Inc. (Fort Walton Beach, FL) - BAE Systems is a global leader in defense, aerospace, and security solutions. Their Fort Walton Beach location specializes in range instrumentation products and sustainment, offering precision tracking systems and test range instrumentation.

6. Interconnect Solutions (Fountain Valley, CA) - Interconnect Solutions Company (ISC) provides high-quality interconnect solutions, including cable assemblies, harnesses, custom overmolded solutions, and molded strain reliefs. Their products are used in commercial and military aircraft, medical devices, and various industrial applications.

7. Kauffman Engineering, Inc. (Virginia Beach, VA) - Kauffman Engineering specializes in custom wiring solutions, offering premium wire harnesses, cable assemblies, panel assembly, and box build services.

8. Whitepath Fab Tech, Inc. (Ellijay, GA) - Whitepath Fab Tech, Inc. is a manufacturer of fabricated metal products, including spring and wire products.

9. Heritage Wire Harness, LLC (Fort Payne, AL) - Heritage Wire Harness is a 100% women-owned business providing UL-approved wire and cabling products and control panels. They serve more than a dozen industries worldwide from their facility in Fort Payne.

10. Woven Electronics Corp. (Simpsonville, SC) – Operating from a 100,000 square-foot facility in Simpsonville, South Carolina, Woven Electronics produces woven ribbon cables, harnesses, interconnects, perimeter security, medical cables & fiber-optic assemblies.

About This Data

MNI collects detailed information firsthand, making direct contact with each industrial company in the U.S to verify multiple data points about their business. While this data is used to power a variety of industrial solutions, it also yields key insights and statistics as a natural outcome of our hand-verified collection process.

This data forms the informational engine behind IndustrySelect, which offers real-time access to detailed company and executive profiles for sales, marketing, recruiting, and research. MNI data also powers IndustryNet, an industrial sourcing platform that connects buyers with industrial suppliers across thousands of product categories. Both platforms are designed to help professionals find accurate, up-to-date information for sales and business development, prospecting, and procurement.

Looking to contact companies in the U.S. industrial sector? An IndustrySelect subscription provides clients with touch-point data for potential leads, including direct executive contact information and other actionable data among 360,000+ U.S. industrial companies (see a sample profile). To learn more about how you can use IndustrySelect to generate reliable leads for your company, learn more here or start your free demo, loaded with 500 real company profiles.