- 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 neglected security concerns: the seabed, as Baltic cable sabotage, ghost 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, leveraging AI to identify ships and objects in real time.
A three-man Danish company founded by students is moving into a somewhat interesting sector for an EU-based startup: underwater defense.
Triton Depth has received €1 million in pre-seed funding from investors including London-based The Creator Fund and the Danish Public Export and Investment Fund (EIFO), with the aim of focusing on acoustics to address what is arguably the biggest threat to Europe’s security in the days to come: naval warfare and drone sabotage.
With growing concerns about the vulnerability of the European Union, and by extension Denmark, to various maritime threats, EIFO’s investment in Triton Depth could be more than just a value play, but a mark of a realization of the need to meet its own defense needs, even as NATO continues to misunderstand, with the United States proving to be an unstable partner to say the least in recent times.
Using affordable dual-use acoustic technology as the first line of defense
Triton Depth’s approach is attractive to a domestic defense industry that does not share the budgets that large naval players such as the United States, Russia or China possess: it is simple, but elegant in principle, and even partial victories with respect to its demands would go a long way to safeguarding the regional interests of Denmark and the EU.
Triton Depth’s approach focuses on the use and deployment of its “Triton Nodes,” a scalable group of low-maintenance passive acoustic sensors that measure sound underwater before feeding the information back to an AI model that evaluates and classifies the 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 its goal is to build “the intelligence layer for the ocean” for both civilian and military use cases.
The emphasis on defense stems from Denmark’s own vulnerabilities in the Baltic Sea, which has already suffered significant economic damage from sabotage, including the destruction of Nord Stream 1 and 2.
With an increasing share of its critical infrastructure, including electrical interconnections, data cables and offshore wind power, lying underwater, it could be argued that EIFO’s investment is the Danish state protecting its own maritime security and intelligence interests by investing in a smart tripwire for the future.
Other European governments are also actively seeking scalable and affordable ways to monitor coastal and underwater infrastructure, even as Nordic countries’ defense budgets continue to rise. Triton Depth is among several defense infrastructure companies poised to benefit from a renewed focus on maritime security in the region, even as acoustics are seen as a reliable measure for monitoring a variety of infrastructure.
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