Undersea Cabling Market Report 2026

The undersea cabling market size has grown rapidly in recent years. It will grow from $23.2 billion in 2025 to $26.1 billion in 2026 at a compound annual growth rate (CAGR) of 12.5%. The growth in the historic period can be attributed to growth of global telecommunications traffic, expansion of early subsea communication routes, increasing offshore oil and gas activity, reliance on conventional cable laying technologies, rising inter-country electricity transfer needs.

The undersea cabling market size is expected to see rapid growth in the next few years. It will grow to $41.58 billion in 2030 at a compound annual growth rate (CAGR) of 12.3%. The growth in the forecast period can be attributed to rising demand for high-bandwidth connectivity, expansion of offshore wind power projects, increasing investment in resilient subsea infrastructure, advancements in cable durability and monitoring, growth of international energy interconnection initiatives. Major trends in the forecast period include growing demand for high-capacity submarine fiber optic networks, rising installation of power cables for offshore wind projects, expansion of inter-country and island grid connectivity, increasing adoption of advanced cable protection and monitoring systems, growth in offshore oil and gas communication requirements.

The rising number of data centers is anticipated to boost the growth of the undersea cabling market in the coming years. Data centers are facilities that contain computer systems, servers, and networking equipment responsible for storing, processing, and managing large volumes of digital information to support various online services and applications. Undersea cabling plays a crucial role in data centers by enabling high-speed and reliable data transmission over long distances, thereby connecting servers and enhancing global internet connectivity. For example, in January 2024, Newmark Group Inc., a US-based commercial real estate advisor and service provider, projected that the demand for data centers in the U.S. would grow significantly, reaching 35 GW by 2030, up from just 17 GW in 2022. Thus, the increasing number of data centers is expected to drive the undersea cabling market throughout the forecast period.

Major companies in the undersea cabling market are strategically focusing on expanding existing commercial projects to gain a competitive edge. The expansion of these projects is anticipated to enhance global connectivity and support the increasing demands for data. For example, in October 2023, Google LLC entered into an agreement with the United States and Australian governments to operate undersea cables, extending internet access to a minimum of eight Pacific Ocean countries. This agreement represents an expansion of Google's existing commercial project in the region, providing connectivity to Micronesia, Kiribati, the Marshall Islands, Papua New Guinea, the Solomon Islands, Timor-Leste, Tuvalu, and Vanuatu.

In January 2023, Panduit Corp., a US-based provider of electrical and network infrastructure solutions, acquired DongWon EN-Tec Co., Ltd. for an undisclosed sum. This acquisition includes advanced products such as URAPROTECT, a polyurethane protector designed for submarine cables, which enhances Panduit's industrial product offerings. This strategic decision aligns with Panduit's commitment to growth in the renewable energy sector, particularly for larger offshore wind installations. DongWon EN-Tec Co., Ltd. is a South Korea-based cable manufacturer specializing in undersea cables.

Major companies operating in the undersea cabling market are Tyco Electronics Ltd., NEC Group, Nippon Telegraph and Telephone Corporation, Huawei Technologies Co. Ltd., Infinera Corporation, Fujitsu Limited, Nexans S.A., NKT A/S, Prysmian Group, Corning Incorporated, Hexatronic Group AB, Jiangsu Zhongtian Technology Co. Ltd., LS Cable & System Ltd., SubCom LLC, Alcatel Submarine Networks Inc., TE SubCom LLC, Xtera Communications Inc., Hengtong Group Co. Ltd., Huawei Marine Networks Co. Ltd., Ciena Corporation, Optical Cable Corporation (OCC), Global Marine Group, Sumitomo Electric Industries Ltd., RTI Connectivity Pte. Ltd., Aqua Comms Limited, Hawaiki Submarine Cable LP, Seaborn Networks Inc., Southern Cross Cable Network, Vocus Group Limited, PCCW Global Ltd., MainOne Cable Company, Angola Cables S.A., Seacom Limited, Telxius Telecom S.A.

Note that the outlook for this market is being affected by rapid changes in trade relations and tariffs globally. The report will be updated prior to delivery to reflect the latest status, including revised forecasts and quantified impact analysis. The report’s Recommendations and Conclusions sections will be updated to give strategies for entities dealing with the fast-moving international environment.

Tariffs on copper, optical fiber, specialized insulation materials, and subsea cable components have increased production and installation costs in the undersea cabling market, particularly impacting high-voltage power cables, submarine fiber optic cables, and wet plant equipment across Europe and Asia-Pacific, where import reliance is high. These cost escalations have slowed deployment timelines for offshore wind farms, inter-country grid links, and communication cable projects. However, tariffs have also encouraged domestic manufacturing expansion, investment in alternative materials, and greater regional self-sufficiency in subsea cable production.

The undersea cabling market research report is one of a series of new reports that provides undersea cabling market statistics, including undersea cabling industry global market size, regional shares, competitors with an undersea cabling market share, detailed undersea cabling market segments, market trends and opportunities, and any further data you may need to thrive in the undersea cabling industry. This undersea cabling market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenario of the industry.

Undersea cabling pertains to cables designed for underwater communication. It is also known as marine cable, comprising conductors encased in an insulating sheath and laid on the seabed to facilitate message transmission. Specially designed cable ships are responsible for laying underwater cables, equipped to store thousands of miles of coiled cable in their holds.

The primary offerings in the undersea cabling market encompass wet plant products and dry plant products. Wet plants involve the two beach manholes where the cable either enters or exits the water. Dry plant products consist of power feeding equipment (PFE), submarine line terminals, and land cable segments. The undersea cabling market is categorized by voltage into medium voltage and high voltage. The segmentation by type includes single-core and multicore cables. Key applications in the undersea cabling market involve communication cables and power cables. End-users in this market span offshore wind power generation, inter-country and island connections, and offshore oil and gas ventures.North America was the largest region in the undersea cabling market share in 2025. The Asia-Pacific was the second-largest market in the undersea cabling market. The regions covered in the global undersea cabling market analysis report are Asia-Pacific, Western Europe, Eastern Europe, North America, South America, the Middle East, and Africa. The countries covered in the undersea cabling market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Russia, South Korea, UK, USA.

The undersea cabling market consists of sales of submarine cables and subsea cables. Values in this market are ‘factory gate’ values, that is the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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