SEAGUARD
Operational Protection Against the Undersea Threat Spectrum
• 10-50+ m (Site Dependent)
• Individual lengths up to 1500m
• Additional barriers can be deployed
• Port and Offshore Construction configurations
SYSTEM OVERVIEW
Non-kinetic UUV Defeat System
Developed by ThayerMahan, SeaGuard™ is an operationally validated non-kinetic UUV defeat system. A rapidly deployable, mission-durable, environmentally responsible underwater barrier system. Designed to protect mission‑critical assets below the waterline, SeaGuard is ideal for ports, offshore installations, military operations, and construction zones. The system:
- Defends against Unmanned Underwater Vehicle (UUV) threats
- Deters unauthorized diver or swimmer intrusion
- Shields high-value assets from tampering or sabotage
Solutions to Maritime Situations
Coastal, Port, and Waterway Security
Critical Infrastructure, Commerce & Interagency Maritime Security
Learn more
Why SeaGuard?
- Creates a multi-purpose subsea barrier
- Deters divers and defeats UUVs
- Non-permanent, rapidly recoverable, environmentally responsible deployment
FAQ
ask our experts
DAVID DOYLE
Vice President of Product Delivery Operations
Has SeaGuard been tested?
Yes. SeaGuard™ is the only system of its kind, and has demonstrated repeatable, operationally validated defeat performance across all evaluated exercises and trials.
Is SeaGuard in use?
Yes. ThayerMahan has fielded technology capable of protecting critical ports, assets, and infrastructure across U.S. government and commercial operators, with systems actively deployed today.
Can I order a SeaGuard System?
Yes. ThayerMahan’s SeaGuard system is open for orders from Government and Commercial customers. Contact our Team to begin your journey towards enhanced security with non-kinetic UUV defeat.