The undersea domain has never been more strategically important. From the proliferation of submarines and underwater vehicles, to the protection of subsea energy and communications infrastructure, maritime security now extends well beneath
The undersea domain has never been more strategically important. From the proliferation of submarines and underwater vehicles, to the protection of subsea energy and communications infrastructure, maritime security now extends well beneath the ocean surface. As a result, defense agencies worldwide are investing heavily in underwater energy, navigation, sensing, autonomy, and communication systems to maintain domain awareness and respond to emerging threats. The companies featured in this year’s MTR100 are leaders in these areas, with innovations shaping a new era of persistent, distributed, and scalable subsea defense capabilities.
Power & Energy Systems: Enabling Persistence
As defense missions extend into deeper waters and demand longer endurance, reliable power infrastructure has become critical. Companies like SubCtech are at the forefront with rechargeable lithium-ion battery packs rated for depths up to 6,000 meters. Its modular SmartPowerBlock technology powers AUVs and ROVs on long-duration operations, while OceanPack monitoring systems support uninterrupted environmental data collection, capabilities that are essential for subsea surveillance and maritime domain awareness.
Teledyne Marine’s Subsea Supercharger (SSC) is another breakthrough - a compact, fuel cell-based “mini power plant” engineered for long deployments in remote environments. The SSC can charge resident AUVs/ROVs, power control nodes, and support fully autonomous operations without frequent
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