Defence Finance Monitor

Defence Finance Monitor

Water Linked AS: European Underwater Positioning and Acoustic Systems

Sep 05, 2025
∙ Paid


Water Linked AS is a Norwegian innovator in underwater sensing and communication that has quietly become a critical player in Europe’s high-tech defense ecosystem. From its base in Trondheim, this company develops miniature sonar, acoustic modems, and positioning systems that let divers and underwater robots navigate and communicate as confidently beneath the waves as we do above[1]. In an era when Europe is striving for strategic autonomy in defense technologies, Water Linked offers a homegrown solution in a niche long dominated by foreign suppliers. Its wireless “Underwater GPS” and Doppler Velocity Logs (DVLs) are not only shrinking the size and cost of underwater navigation gear, but also reducing reliance on imports for critical undersea capabilities[2][3]. The firm’s dedication to affordability and reliability has earned it recognition among Norway’s fastest-growing tech companies, and even caught NATO’s eye – Water Linked was hand-picked for the Alliance’s DIANA accelerator program in 2023[4]. This rising profile underscores how a small, deep-tech company can contribute outsized strategic value: enhancing Europe’s undersea operational autonomy, bolstering NATO multi-domain interoperability, and helping replace at-risk supply chains with allied innovation. The following analysis will delve into Water Linked’s strategic-technological profile – from its corporate identity and technology portfolio to its role in European defense initiatives – to assess how this Nordic startup is strengthening Europe’s underwater defense capabilities while aligning with broader EU and NATO objectives.

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