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Danish startup raises €1 million to track underwater threats
Danish startup Triton Depth raised €1 million to build AI-powered passive acoustic sensors for tracking underwater threats and protecting subsea infrastructure.
Image: TechRadar
Copenhagen-based Triton Depth, founded in 2025 by three DTU engineering students, has raised €1 million in pre-seed funding to develop underwater monitoring technology for civilian and defense applications.
The Danish startup is targeting a growing security gap beneath the surface: threats to Baltic Sea infrastructure, shadow-fleet activity, underwater drones, and sabotage involving subsea cables and other critical assets.
How Triton Nodes detect underwater activity
Triton Depth plans to deploy a scalable network of low-maintenance passive acoustic sensors called Triton Nodes. The devices measure underwater sound and send the data to an AI model designed to identify and classify vessels and other objects in real time.
The company describes the system as an affordable, dual-use alternative to more expensive naval surveillance technologies. Its potential applications include monitoring power interconnectors, data cables, offshore wind infrastructure, and coastal areas.
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“The intelligence layer for the ocean.”
The startup’s defense focus reflects Denmark’s exposure to risks in the Baltic Sea, where sabotage has already caused significant economic damage, including the destruction of Nord Stream 1 and 2. A larger share of Europe’s critical infrastructure is also located underwater, making persistent monitoring more difficult.
Triton Depth received the funding from investors including London-based The Creator Fund and Denmark’s state-owned Export and Investment Fund (EIFO). EIFO’s investment signals growing interest in strengthening Denmark’s domestic maritime security capabilities.
Other European governments are seeking scalable and affordable methods to monitor coastal and subsea infrastructure as Nordic defense budgets rise. Triton Depth is positioning its acoustic system to serve that expanding market, with the company arguing that underwater sound can provide a reliable way to track activity around vulnerable assets.
Security Editor
Sophia unpacks the invisible wars happening on our networks. Covering cybersecurity, privacy legislation, and cryptography, she exposes how our data is weaponized and defended. Before joining for(geeks), she spent years as a penetration tester. She's the reason the rest of the team uses physical security keys.
via TechRadar
