
Maritime startups in Europe
Uncrewed surface and underwater vessels, sensors and autonomy for patrol, mine countermeasures and the protection of undersea cables and pipelines, a priority for Europe since the Baltic Sea incidents.
Autonomous reconnaissance craft in the Baltic Sea, BALTOPS 2025. Photo: U.S. Navy photo by Petty Officer 2nd Class Ryan LeCompte, Public domain (PD-USGov-Military-Navy).
Latest rounds
| Date | Company | Round | Amount | Country | Sector |
|---|---|---|---|---|---|
| Jul 2026 | Kraken Technology Group | Series B | $175M | United Kingdom | Maritime |
| Jun 2026 | Hydromea | Grant | $1M | Switzerland | Maritime |
| Apr 2026 | Eelume | Grant | - | Norway | Maritime |
| Apr 2026 | Online Oceans | Seed | £4M | United Kingdom | Maritime |
| Mar 2026 | Mirai Robotics | Pre-seed | $4.2M | Italy | Maritime |
| Mar 2026 | SUBmerge Baltic | Seed | - | Latvia | Maritime |
| Mar 2026 | UFORCE | Seed (Preqin: Series A) | $50M | United Kingdom | Maritime |
| Aug 2025 | Stormborn | Seed | - | Denmark | Maritime |
| Jul 2025 | Kongsberg Ferrotech | Seed | €12M | Norway | Maritime |
| Jul 2025 | SR Robotics | Series A | €8.4M | Poland | Maritime |
| Sep 2024 | HonuWorx | Seed | - | United Kingdom | Maritime |
| May 2024 | Hefring Marine | Seed | €2.2M | Iceland | Maritime |
| Dec 2022 | Zelim | Equity | £2.3M | United Kingdom | Maritime |
| Jun 2021 | Blueye Robotics | Series A | - | Norway | Maritime |
All companies
Full directoryKraken Technology Group
Fareham, United KingdomBuilds modular, open-architecture uncrewed surface vessels such as K3 Scout, K5 Kraken and K7 Sabre for surveillance, force protection and strike missions.
Hydromea
Renens, SwitzerlandBuilds compact underwater drones, inspection robots and wireless optical communication for subsea monitoring and infrastructure security.
Eelume
Trondheim, NorwayDevelops snake-like autonomous underwater vehicles for subsea inspection, maintenance and repair.
Online Oceans
Christchurch, United KingdomBuilds Scout, a compact solar-powered autonomous surface vessel, and Tether fleet command software for maritime security and anti-submarine warfare.
Mirai Robotics
Puglia, ItalyDevelops autonomous surface vessels and autonomy software for ISR and maritime patrol in coastal and offshore waters.
SUBmerge Baltic
Riga, LatviaDevelops autonomous underwater drones for port security, mine countermeasures, hydrography and critical infrastructure inspection.
UFORCE
London, United KingdomUkrainian-founded, UK-headquartered maker of combat-proven uncrewed air, land and sea systems, including Magura naval drones.
Stormborn
Frederiksberg, DenmarkDevelops autonomous uncrewed surface vessels for defence and commercial offshore data acquisition.
Kongsberg Ferrotech
Kongsberg, NorwayBuilds the Nautilus subsea robot that creates a dry habitat underwater to inspect and repair pipelines, risers and hulls, including 3D-printed metal repairs.
SR Robotics
Katowice, PolandDevelops remotely operated and autonomous underwater vehicles for seabed mapping, unexploded ordnance detection and hull cleaning.
HonuWorx
Aberdeen, United KingdomBuilds autonomous all electric submarine motherships deploying ROVs, remotely controlled from shore, for subsea inspection, maintenance and repair.
Hefring Marine
Reykjavik, IcelandIMAS edge AI system giving real time onboard guidance and fleet analytics for crewed and uncrewed naval and patrol vessels.
Zelim
Edinburgh, United KingdomMaritime search and rescue company offering ZOE AI man overboard detection, the Swift recovery conveyor and the Guardian uncrewed rescue vessel.
Blueye Robotics
Trondheim, NorwayMakes portable underwater drones (ROVs) used by navies, coast guards and military engineers for inspection and mine countermeasures.
dotOcean
Bruges, BelgiumBelgian maritime tech firm building multi-sensor surveillance above and below water, fusing radar, cameras, infrared and fibre acoustic sensing for critical infrastructure.
SEATOM Technologies
Porvoo, FinlandDeveloping modular micro nuclear reactors and nuclear propulsion for ships, naval and seabed operations and other extreme environments.
Triton Depth
Copenhagen, DenmarkBuilds passive acoustic sensor networks to detect and classify underwater activity, including uncrewed underwater vehicles.