Industries / Defense
Connected Subsea Operations for Defense
Maritime domain awareness does not stop at the waterline. Across every subsea mission, the enabler is the same: a communication layer that keeps underwater assets connected. Subnero provides it.
The Gap in Maritime Domain Awareness
Most forces have a strong maritime picture on and above the water, and almost none in the subsea domain. Subsea domain awareness means knowing where your underwater assets are and what they are doing, and that requires a network beneath the surface. Subnero provides the communication layer that enables that network.
Persistent connectivity
Keep assets linked throughout a mission instead of waiting for recovery to learn what happened.
One operating picture
See where your underwater assets are and what they are doing, alongside the surface and air picture your force already holds.
Reduced risk and intervention
Fewer vessels on station and fewer people in the water, with more of the mission run remotely and autonomously.
Seabed to operator
Backhaul over available terrestrial networks carries the subsea picture from the gateway straight to your command center and shore networks.
One Communication Layer, Many Missions
Every mission below depends on the same thing: a communication layer for the subsea domain. Subnero delivers that layer as a configurable underwater network connecting sensors, vehicles, divers, gateways, and shore stations, with backhaul over available links above the surface, so the subsea picture reaches the operator in real time.
Subsea Missions, One Network
Unmanned System Coordination
Enable communication with underwater vehicles during detection and classification, including ordnance.
Passive Acoustic Monitoring
Seabed nodes listen and relay contacts for wider surveillance and antisubmarine awareness.
Diver Communication and Tracking
Messaging, telemetry, and position for divers well beyond direct range.
Command and Control
Every asset on one operating picture, reaching command centers ashore.
Enabled by the Subnero Underwater Network
Plan, Simulate and Validate Before Deployment
Subsea networks need to be tested before field operations. Subnero supports simulation and hardware-in-the-loop validation so teams can evaluate configurations, traffic patterns and operating assumptions before deployment.
UnetSim
Simulate the full network, topologies, protocols, and traffic, at fleet scale, before deployment.
Hardware in the Loop Simulation
Run real Subnero modems against simulated channels and mission scenarios, so the exact hardware and software that will deploy is what gets tested.
UnetCloud
The full simulation environment, a standing digital twin for planning, evaluation, and training.
Proven Where It Matters
Working with ST Engineering, Subnero deployed one of the world's first commercial underwater cellular networks in Singapore waters, demonstrating continuous coverage, seamless handover, multi user resource sharing, and real time tracking of subsea assets. The deployment is documented in an OCEANS 2024 paper and a full case study.
Read the Singapore underwater cellular network story.
The Subnero Underwater Network also won the DisTec Undersea Challenge at UDT 2021, selected ahead of finalists from across the undersea defense community.
