Top 5 Companies in the Global Automotive Wiring Harness Market in 2025

The global automotive wiring harness market reached a value of about USD 95.15 Billion in 2024. The market is projected to grow at a CAGR of 4.50% in the forecast period of 2025-2034 to reach around USD 147.77 Billion by 2034. As per the analysis by Expert Market Research, the market is expected to be driven by the rapid electrification of vehicles.

The growing trend of vehicle electrification is increasing the demand for automotive wiring harness. The rising demand for electric vehicles (EVs) and hybrid cars necessitates the need for intricate wiring systems to power electric drivetrains, sophisticated onboard electronics, and batteries. The need for electrification drives the demand for specialised wiring harnesses that can manage increased voltage levels and boost connectivity needed for electric propulsion.

As per the automotive wiring harness market report, the need for quicker data transfer within the automotive wiring network is rising as more vehicles become connected and autonomous. This is increasing the need for wiring harnesses based on fibre optics. Fibre optic cables offer faster data transfer speeds and allow multiple car systems to communicate seamlessly with one another. These systems ensure the success of advanced driver assistance systems (ADAS) to enable autonomous driving. Manufacturers of wiring harness systems are also adopting energy-efficient manufacturing practices and recyclable materials to meet the rising demand for environmentally sustainable products in the automotive sector.

Around 10.3 million electric cars were produced in 2022, with the top 15 automotive producers accounting for more than 80% of the output.

Table: Major Electric Vehicle Producers in 2022

Top Automotive Wiring Harness Companies in the World:

1. Sumitomo Electric Industries Ltd.

Sumitomo Electric Industries Ltd. is the founding company of the Sumitomo Electric Group. The Group has a global network of 414 companies in 40 countries. The company conducts its business through five major business segments. These include automotive, electronics, info communications environment and energy, and industrial materials. The Sumitomo Electric Group hires over 280,000 people across the globe.

2. Furukawa Electric Co. Ltd.

Furukawa Electric Co. Ltd. is engaged in the development and fabrication of advanced materials for various markets, including telecommunications and energy, electronics, and automobiles. In addition to providing automotive wire harnesses, the company is investing to reduce wire diameter and weight while enhancing the productivity of wire harnesses. The company is also working on new technologies, such as harnesses for electric automobiles and hybrid vehicles.

3. Yazaki Corporation

Yazaki Corporation manufactures and markets wire harnesses for cars, gas equipment, electric cables, air conditioning, and solar-powered equipment. The company conducts business in around 46 countries, globally. Yazaki has a total of 141 group companies, with 45 domestic companies and 96 international companies. In the automotive business, the company is advancing research and development to support the future mobility society through connecting technologies, with a particular focus on wire harnesses for vehicles.

4. Leoni AG

LEONI AG is a manufacturer of products, solutions, and services for data management and energy in the automotive sector. The group of companies hires around 95,000 people in 27 countries and in 2022, it generated consolidated sales of around EUR 5.1 billion. LEONI focusses its research and development activities on major automotive trends, such electromobility, digitalisation, connectivity, and autonomous driving. In addition to producing high-voltage cable harnesses and cables, the company also offers charging cables for electric vehicles and plug-in hybrids.

5. Lear Corporation

Lear Corporation is an automotive technology company engaged in producing seating and E-Systems for automobiles, to enable superior in-vehicle experience for consumers. Lear’s E-Systems business provides a range of automotive wiring harnesses, including 12V to 48V, mild hybrid, and high voltage wire harnesses. The company conducts operations in 38 countries and has 265 facilities.