- Copenhagen-based Triton Depth, founded in 2025 by three DTU engineering students, has raised €1 million in pre-seed funding
- It aims to address one of the EU’s most underserved security concerns: the seabed, as Baltic cable sabotage, shadow fleet activity and underwater drone warfare are growing concerns
- Triton Depth intends to build a scalable network of passive acoustic sensors it calls ‘Triton Nodes’ to solve the problem by leveraging AI to identify ships and objects in real-time
A three-person Danish company founded by students ventures into a rather interesting industry for an EU-based startup: underwater defence.
Triton Depth has received €1 million in pre-seed funding from investors including London-based The Creator Fund and Denmark’s state-owned Export and Investment Fund (EIFO), aiming to focus on acoustics to answer what is arguably Europe’s biggest security threat in the coming days: drone-based naval warfare and sabotage.
With growing concerns about the European Union’s, and by extension Denmark’s, vulnerability to a range of seaborne threats, EIFO’s investment in Triton Depth may be more than just a value play, but indicative of a recognition that it needs to look after its own defense needs even as NATO continues to meander, with the US proving to be a volatile partner of late, to say the least.
Uses affordable dual-use acoustic technology as the first line of defense
Triton Depth’s approach appeals to a domestic defense industry that does not share the budgets of major naval players such as the US, Russia or China: it is simple yet elegant in its premise, and even partial victories when it comes to its claims would go a long way to securing Denmark and the EU’s regional interests.
Triton Depth’s approach centers around the use and deployment of its ‘Triton Nodes’, a scalable cluster of low-maintenance passive acoustic sensors that measure sound underwater before sending information back to an AI model that assesses and classifies signatures it detects in real time.
The company intends to market its product line as a dual-use technology play, with CEO and co-founder Carl Borg stating that they aim to build “the intelligence layer for the sea” for both civilian and defense use cases.
The focus on defense stems from Denmark’s own vulnerabilities in the Baltic Sea, which has previously suffered significant economic damage from sabotage, including the destruction of Nord Stream 1 and 2.
With an increasing proportion of its critical infrastructure, including power connections, data cables and offshore wind, lying underwater, it can be argued that EIFO’s investment is for the Danish state to safeguard its own maritime security and intelligence interests by investing in an intelligent tripwire for the future.
Other European governments are also actively seeking scalable, affordable ways to monitor coastal and subsea infrastructure, even as Nordic defense budgets continue to rise, with Triton Depth among many defense infrastructure companies poised to benefit from a renewed focus on maritime security in the region, even as acoustics is seen as a reliable gauge to monitor for a variety of infrastructure.
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