Subnero
Designs underwater acoustic modems and communication systems for marine robotics, sensing, and data transfer.
Subnero develops underwater wireless communication and subsea data systems built around acoustic smart modems, networking software, and integrated sensing products. Its core offering is a wireless networked communications platform for underwater environments, designed to support communication, monitoring, localization, and IoT across subsea missions. The company's technology is presented as a complete ecosystem that combines hardware and software so users can deploy and manage underwater networks rather than build everything from scratch.
A major part of Subnero's business is the WNC product series, which includes acoustic smart modems and the UnetStack software ecosystem. The modems are positioned for underwater connectivity across different needs, including long-range, versatile, and high-speed links, with separate bands and series for different operating conditions. The software side centers on UnetStack, which provides a programmable network stack, a full simulation environment, and integration with Subnero's smart modems. Subnero also offers tools for software-defined networking that can operate across acoustic, optical, and RF links under a unified framework, along with simulation and hardware-in-the-loop tools for design, testing, and deployment.
The company also serves subsea sensing and data collection use cases through the Subnero Wireless Integrated Suite (SWIS). SWIS brings together acoustic communication, sensor integration, and edge processing to support autonomous subsea data collection and reliable connectivity. It is described as useful for survey operations and long-term ocean monitoring, and the SWIS - ADCP Edition specifically supports wireless retrieval of data from Acoustic Doppler Current Profilers. That edition includes a web-based interface and Content-Aware Processing to help manage deployments, reduce maintenance burden, and simplify multi-site operations.
Subnero's solutions extend beyond individual products into complete subsea communication layers and operational systems. Its Autonomous Subsea Data Operations offering uses acoustic data harvesting and software-defined networking to move information from seabed sensors to an endpoint over satellite or cellular backhaul, reducing dependence on crewed recovery vessels. Its Subnero Underwater Network is described as a configurable network stack connecting AUVs, sensors, and divers to the surface, shore, and cloud, with support for centralized and ad hoc mesh topologies, handover, asset tracking, and a full toolchain. The company positions these systems for defense, energy, research, and marine robotics users, as well as broader subsea applications that need scalable connectivity and remote data access.