STOP
THE THREAT
UltraSea delivers physical above- and below-water barriers for the protection of ports and port facilities. A warning without a physical stop is worthless.
Critical Infrastructure Unprotected
Current systems detect threats but do not stop them. UltraSea provides the physical barrier that is missing.
Ports lack physical underwater security at the waterside perimeter
Quays and terminals are vulnerable to sabotage by small vessels and divers
Locks and anchorages are unprotected against unauthorised underwater access
Naval bases and military harbours are susceptible to UUV attacks from below
Port facilities fail to meet ISPS waterside physical protection requirements
Existing systems detect threats but do not stop them
Our Systems
Physical above- and below-water barriers for ports and port facilities are our core business. Sensors are available as an optional supplement.
Floating Surface Barrier
Surface Barrier SystemModular floating barriers protecting ports, locks and harbour facilities against unauthorised vessels and fast attack craft. Fully solar-powered and remotely operated.
Deep Guard™ Underwater Net
Subsurface BarrierAutomatically retractable underwater net spanning from the water surface to the seabed. Full water-column protection against UUVs, divers and underwater saboteurs.
Above-Water Sensors
Optional Detection SystemOptical and acoustic detection system for the water surface. Automatically triggers physical barriers upon threat detection. Available as a supplement to our barrier systems.
Underwater Sensors
Optional Detection SystemHydrophone arrays for detection of UUVs and divers below the surface. Directly coupled to the Deep Guard net system for fully automated water-column protection.
Physical Protection of Critical Infrastructure
UltraSea develops physical barrier systems against UUVs (Unmanned Underwater Vehicles), USVs and saboteurs. Our systems provide a versatile and environmentally conscious defence mechanism that actively stops threats — not merely detects them.
The system protects both above and below the waterline via a retractable net that is stored above the water surface when not in use. This minimises maintenance requirements and ecological impact. Upon activation, the net deploys rapidly from surface to seabed, providing complete water-column protection.
Deep Guard™ — Automated Underwater Net
The Deep Guard system is deployed and retracted remotely, integrating with existing barriers or custom floats. Minimal shore infrastructure required. The underwater gate enables controlled passage, with future BluePass functionality for authenticating friendly UUVs.
The Problem: Detection Stops Nothing — Physical Barriers Do
Growing Threat
UUVs, saboteurs and small vessels pose an escalating threat to ports, locks and other critical port facilities.
Detection Is Not Prevention
Existing systems signal danger but do not stop it. Authorities lack the means to respond within under one minute. A warning without a physical stop is worthless.
Legislative Obligation
The EU CER Directive (Art. 13) and the ISPS Code require ports and port facilities to implement technical measures for physical protection — barriers and access control at the waterside.
Operational Architecture
Integrated system architecture showing how defence components work together for complete maritime situational awareness.
_SYSTEM_LEGEND
Layered Protection
Physical barriers above and below water as the core — sensors available as a supplementary option
Floating Surface Barrier
Modular floating barriers protect the waterline. Fully solar-powered, remotely operated and easily scalable for any perimeter.
Deep Guard™ Underwater Net
Automatically retractable net spanning from surface to seabed. Nets are stored dry above water to prevent biofouling and corrosion.
Optional Sensors
Available on request: optical and acoustic sensors above water, and hydrophone arrays below water for automatic triggering of the barriers.
Multidomain protection: the Fitted Drone Screen (FDS)
Our WSB provides unparallelled kinetic protection against surface and subsurface attacks. The modern threat landscape, however, increasingly involves Unmanned Aerial Systems (UAS) and loitering munitions — lightweight aerial assets that attempt to bypass traditional perimeters by air. The MacShield Fitted Drone Screen (FDS) closes this critical vulnerability by establishing a robust, overhead kinetic shield.
From the waterline to the airspace.
Ultrasea and MacShield — a partnership of Officine Maccaferri Defense & Security — deliver products and services jointly under the brand name MacShield. By combining the WSB with the FDS, a complete defensive envelope is created that neutralises threats across the full vertical domain: water surface, subsurface, and airspace.
WSB Deep Guard
Waterline & subsurface
MacShield FDS
Above-ground & airspace
360° protected
Fully multidomain
Key operational advantages of the FDS integration
Modular architecture
The FDS is engineered as a direct add-on to existing WSB installations, allowing for rapid deployment without compromising the hydrokinetic stability or buoyancy of the primary barrier.
Kinetic drone mitigation
By creating a stand-off physical barrier, the FDS intercepts FPV drones and neutralises lightweight explosive payloads before they can damage the superstructure or critical parts.
High-tensile durability
Constructed from tested specialised mesh and corrosion-resistant materials, the system is built to withstand both harsh (offshore) weather conditions and direct kinetic impacts.
Multi-layered defence
Combining the WSB with the FDS creates a comprehensive defensive envelope, securing critical assets from the waterline up into the airspace above.
Your maritime perimeter stays resilient.
By adding the FDS to your security architecture, MacShield ensures that your maritime perimeter remains resilient against the full spectrum of modern, multi-domain threats.
Technical Specifications
Validated specifications for our physical barrier systems
SURFACE BARRIER
DEEP GUARD™ UNDERWATER NET
UltraSea secures ports and port facilities at the waterside against physical attacks — with barriers that genuinely stop the threat.
Our core activity is the delivery of physical above- and below-water barriers. Where required, we also supply sensors for above- and below-water detection as a complement. We handle production, installation and maintenance throughout the full lifecycle.
Get in TouchFirst and last line of defense
True sustainability cannot exist without security of supply. A green energy system that fails due to physical sabotage or extreme weather immediately forces society back to fossil backups. We advise and research how vital installations and the continuity of the entire transition can be safeguarded.
Security by design
We support organisations to integrate security not as an afterthought, but as a fundamental part of the design. Our expertise focuses on the synergy between proactive technology and physical reinforcement:
Smart detection research
Analysis of adaptive algorithms linking data streams to operational status (OT) for optimal response times.
Physical hardening engineering
Development of concepts such as anti-drone netting and (underwater) barriers protecting against both sabotage and extreme weather conditions.
Asset-specific vulnerability analyses
Tailored advice for offshore wind farms (marine parks), battery storage, and vital subsea infrastructure.
Compliant-by-design
By advising within the frameworks of the Wwke and the CER Directive, we help operators become directly physically compliant. Our approach reduces the vulnerability of critical infrastructure and minimises operational risks.
Contact Us
Ready to protect your maritime assets? Our defence specialists are standing by.
Headquarters
Terwenakker 15,
3011 XS Rotterdam,
The Netherlands
Phone
+31 10 261 34 34_BELGIUM OFFICE
We look forward to assisting you
Our team of defence specialists is ready to help protect your port infrastructure with tailored solutions.