The New Wave of Undersea Cable Investment
Undersea cables carry the world’s digital heartbeat. They transport government messages, financial transactions, emails, and video calls every second. Over 95% of international data and voice traffic flows through these cables. Therefore, they form the backbone of the modern internet.
The story of subsea cables began in 1850. The first one stretched between Dover, England, and Calais, France. It carried simple telegraph 7messages. Since then, technology has evolved from coaxial telephone cables to advanced fiber optics. Today, these cables move massive volumes of internet data across continents.
Big Tech Leads the Deep-Sea Data Race
According to Paul Gabla, Chief Sales Officer at Alcatel Submarine Networks, tech giants like Meta, Google, Amazon, and Microsoft now account for about half of the global market. Alcatel remains the world’s largest manufacturer and installer of these systems.
Demand for new cables is rising fast. The reason? Artificial intelligence. AI requires enormous amounts of computing power and data transfer between global data centers. As a result, these companies are investing heavily in building new subsea links.
Between 2025 and 2027, global undersea cable investment is expected to reach $13 billion almost double the amount spent between 2022 and 2024. In addition, this surge supports faster connectivity, reliable communication, and the global AI revolution.
The ocean floor has become the new frontier for digital infrastructure, quietly connecting the world above.
