The New Lords of the Deep

Prysmian and Fincantieri form a powerhouse joint venture to acquire Xtera, targeting the AI-driven boom in global subsea cable infrastructure

17 Mar 2026

Prysmian and Fincantieri have agreed to form a joint venture to acquire Xtera, a specialist in subsea fiber optic technology. The transaction values the business at approximately $65m and marks a strategic entry into the telecommunications infrastructure market by two of Italy's largest industrial groups.

Under the terms of the agreement with private equity firm H.I.G. Capital, Prysmian will hold an 80 percent stake in the new entity, while Fincantieri will retain the remaining 20 percent. The deal is expected to close in the first quarter of 2026, pending standard regulatory approvals.

The partnership combines Prysmian’s cable manufacturing and installation fleet with Fincantieri’s expertise in shipbuilding and underwater security. By integrating these capabilities, the companies aim to offer a comprehensive service for the design, deployment, and protection of undersea data networks.

Xtera provides the technical foundation for this expansion. The company has previously completed high-profile projects connecting the UK to Norway and Florida to Central America. It also maintains a portfolio of defense contracts, including systems for the US Department of Defense.

This technical pedigree is increasingly relevant as governments and technology companies prioritize the physical security of digital infrastructure. Subsea cables carry the vast majority of international data traffic, making them critical assets for national security and global commerce.

The investment arrives as the growth of artificial intelligence and cloud computing accelerates the need for high capacity data links. Industry analysts expect significant investment in new cable systems across the Asia-Pacific region and Atlantic routes through the end of the decade.

The move signals a consolidation of European industrial capacity in a sector historically led by a small group of global providers. By pairing manufacturing scale with maritime engineering, the venture seeks to capture a larger share of the capital expenditure currently being deployed by major technology "hyperscalers."

Future competition in the sector will likely depend on the ability of providers to guarantee both the capacity and the resilience of these underwater links. Regulators are also expected to take a closer interest in the ownership and security of the vessels used to maintain this infrastructure.