Top Power Cable Manufacturers Shaping the Future of Energy Networks

Power cables are conductors designed to transport electric power to a variety of end-use applications. These cables carry electricity that is generated at power generation plants for end uses in residential, commercial, industrial, and major projects. They are considered safe to use, are insulated for toughness, ruggedly constructed, and resistant to moisture and abrasion.

The insulation prevents electrical leakage and short circuiting by containing the electrical current. It also increases thermal resistance, which allows a cable to be operated at higher temperatures without damage. Sheathing materials protect the cable from moisture, chemical solvents, UV light, abrasion, and mechanical impact. Together, the insulation and sheathing materials ensure cables operate reliably, safely, and have long and trouble-free operational lives under a wide variety of conditions.

Kinds of Power Cables

Power cables are classified based on their voltage transmission and intended use. Low-voltage (LV) cables are used in homes and small businesses.  For industrial plants, substations, and large power users, medium voltage (MV) cables are used. High voltage (HV) cables are used for transmission over long distances, and in large power grids.  They may be armored for mechanical protection, or unarmored for flexibility, and installed underground or overhead, depending on environmental conditions or project requirements.

Copper vs Aluminum: Conductor Materials for Application

Copper and aluminum are the primary metals used. Copper has high conductivity and low resistance, which allows energy losses to be reduced to a greater extent, increasing the overall efficiency of a system. Its combination of strength and flexibility makes it ideal for performance-critical applications.

Larger plants use aluminum to reduce material costs and weight. While aluminum has a lower electrical conductivity and therefore larger cross-section than copper to achieve the same properties, it is often used in overhead systems and long-haul networks. In the end, the best choice depends on the required performance of the conductor and the budget.

Choosing the Right Insulation

The type of insulation and running sheathing used for power cables is of particular importance, since it determines the electrical properties, and the environmental and application limits. For low and medium-voltage cables, PVC is widely used owing to its leak proofing properties.

XLPE insulation has a low cost, is flexible, and is resistant to moisture and various chemicals. Improved properties of XLPE are its higher thermal resistance and higher current-carrying capacity that allow for higher temperature service. The rubber insulator is flexible enough for the cable to bend under mechanical stress in extreme environments, while flame-retardant and fire-resistant materials slow the spread of flames and keep systems operating during emergencies.

Market Scenario

Infrastructure investment and upgrading of existing grids and associated power systems fuel demand for insulated and sheathed power cables. For use in large-scale applications, polyvinyl chloride (PVC) is the most common competitive insulation and sheath material for low-and medium-voltage cables. XLPE is being used more and more due to its improved thermal resistance and current-carrying capacity. Rise in industrialization also increases the demand for rubber insulation in hostile environments. Stringent fire safety standards have contributed to the increase in demand for flame-retardant and fire-resistant materials, which enable improved performance and safety compliance, as well as long-term reliability for the product, leading to market growth.

According to the report by Fortune Business Insights™, the market for power cables stood at USD 232.28 billion in 2025 and will hit USD 252.7 billion by 2034, exhibiting a CAGR of 6.39% during 2026-2034.

Fortune Business Insights™ Profiles 10 Key Companies in the Power Cables Market

1. Prysmian Group

The Prysmian Group is a global innovator in the creation, production, and provision of power cable systems for energy transmission and distribution in high, medium, low, and extra-high-voltage applications. In March 2025, Prysmian signed a 7-year agreement with N-Sea for the quick response maintenance and repair of submarine cables.

2. Nexans

Nexans focuses on global transmission and distribution of electricity across extra-high voltage networks. The corporation offers advanced cable systems for onshore and offshore power grids, interconnectors, and clean energy integration to renewable energy developers, industrial clients, and infrastructure projects. In December 2025, the company acquired Electro Cables Inc. ("Electro Cables") to strengthen its footprint in the Canadian low-voltage cable market.

3. LS Cable and System

Based in South Korea, LS Cable and System is a renowned producer of energy transmission systems and power cables. LS C&S’s low, medium, and high-voltage product and solution portfolios are used in industrial, utility, and infrastructure projects worldwide. In July 2025, LS Cable & System and its subsidiary, LS Marine Solution, won the order for the supply and installation of high-capacity cables for the 532 MW Anma offshore wind project in South Korea.

4. Sumitomo Electric Industries

Sumitomo Electric Industries is a leading international technology and manufacturing firm. The company manufactures and markets a diverse range of high, medium, low, and extra-high voltage power cables in the industry, covering submarine, overhead, and underground transmission systems. In December 2025, the company secured a contract with NGET with an aim to supply and install a 140 km, 525 kV HVDC cable for the "Sea Link" project connecting Kent and Suffolk.

5. Hengtong Group

Hengtong Group is a top international producer of energy transmission solutions. With a significant footprint in renewable energy, industrial infrastructure, power transmission, and smart grids, the company has become one of the world's largest optical fiber and cable companies. In April 2024, the company declared the successful mass delivery of its 110kV polypropylene cable, which is being used in a critical emergency cable replacement project in Shenzhen.

6. Orient Cables

Orient Cables is a major global provider and producer of products and energy transmission solutions, with a particular stronghold on the infrastructure, industrial, utility, and renewable energy sectors. The company is a major manufacturer of a diverse range of Coaxial, Optical Fiber, Control, Power, Instrumentation Cables, Datacom, and CCTV. In April 2025, the company secured two major contracts, including a 500 kV EHVAC cable project for a 1 GW offshore wind farm in Guangdong, China.

7. ZTT Group

Based in Jiangsu, China, ZTT Group is one of the world's leading manufacturers of products and energy transmission solutions. Founded in 1992, the company has evolved into a diversified industrial company with a robust emphasis on renewable energy, smart grids, power transmission, and marine engineering. In December 2025, export cable manufacturing for the 1.5 GW Baltica 2 offshore wind farm commenced at ZTT Submarine Cable & System. The project is jointly owned by Ørsted and PGE, with Boskalis set to install the export cables under the 2023 agreements.

8. KEI Industries

KEI Industries provides a diverse range of high, medium, and low voltage power cables, including instrumentation cables, control cables, LV building wires, and EHV power cables up to 400 kV. KEI Industries began phase-one commercial manufacturing of LT and cables in December 2025 at its new Sanand-II plant in Ahmedabad.

9. Belden Inc.

Belden Inc. offers a wide range of low- and medium-voltage power cables in the power cable industry, such as industrial power cables, VFD cables, control cables, flexible power systems, and tray cables. In March 2024, the firm launched new solutions for mission-critical applications, emphasizing improved connectivity, rising data transmission rates, and enhanced power delivery.

10. TF Kable

TF Kable’s power cable range consists of high, medium, and low voltage cables intended for both aerial and underground applications, utilizing both aluminum and copper conductors. These goods are utilized widely in renewable energy projects, industrial facilities, construction, utility grids, and transportation infrastructure. In October 2023, the Polish Baltic Power wind farm signed a contract with the ORLEN Group and Northland Power in collaboration with TFK and JDR to deliver clean electricity to over 1.5 million Polish homes.

What Does the Future Hold for the Power Cables Market?

The world’s power cables companies make modern life, connectivity, and progress possible. As cities grow, industries modernize, and renewable energy grows in scale, so does the demand for cable solutions that are efficient, strong, and safe. New conductor materials and insulations, as well as fire-resistant features, are improving the performance of cables, meeting evolving safety and environmental standards. Continued worldwide growth in infrastructure and smart energy systems will drive an increase in demand for the product.