In a strategic move that signals a significant convergence of aerospace and maritime technologies, space communications startup AnySignal has announced its formal expansion into the undersea market. The Los Angeles-based company, which has garnered attention for its software-defined radio technology designed for satellite constellations, is now pivoting its high-reliability communication architecture toward the challenging environment of subsea operations. This expansion marks a pivotal moment for the startup, as it seeks to leverage its expertise in harsh, remote environments to capture a share of the growing blue economy. By adapting its core technology—which was originally engineered to maintain robust links between fast-moving satellites and ground stations—AnySignal aims to solve the longstanding connectivity bottlenecks that plague underwater drones, sensors, and subsea infrastructure.

The core of AnySignal’s value proposition lies in its proprietary software-defined radio (SDR) and signal-processing algorithms. In space, these systems must contend with Doppler shift, high latency, and intermittent connectivity. The company realized that the physics of underwater acoustic communication, while different in medium, presents analogous challenges regarding signal degradation, multipath interference, and low bandwidth. Traditional underwater communication relies on acoustic modems that are often slow, power-hungry, and difficult to reprogram. AnySignal’s technology allows for real-time reconfiguration of communication waveforms, meaning a single hardware unit can switch between different protocols depending on the mission—whether it is transmitting high-definition video from a remotely operated vehicle (ROV) or sending small telemetry packets from a deep-sea sensor array. This flexibility is unprecedented in the subsea sector, where hardware is typically hard-coded for specific tasks.

The strategic rationale for this move is rooted in economics and market timing. The undersea market, driven by offshore energy, aquaculture, defense, and deep-sea mining, is projected to grow substantially over the next decade. However, the current state of subsea communications is widely considered the primary bottleneck preventing the full autonomy of underwater vehicles. Most underwater drones cannot transmit large data sets without being physically tethered to a surface ship. AnySignal’s entry into this market aims to untether these vehicles, enabling them to operate independently and transmit data—such as pipeline integrity scans or biological samples—back to surface vessels or shore stations with higher fidelity and lower power consumption. By repurposing technology developed for the vacuum of space, the company can bypass years of R&D that would otherwise be required to build a subsea modem from scratch.

Technological synergy is the cornerstone of this expansion. AnySignal’s flagship product, a compact, radiation-tolerant radio, has already proven its ability to handle complex modulation schemes in low Earth orbit. The company is now miniaturizing and pressure-proofing this technology for depths of up to 6,000 meters. The key challenge is not just surviving the pressure, but managing the acoustic transducer interface. By applying machine learning algorithms originally designed to predict satellite handovers, AnySignal’s subsea modems can predict acoustic channel fluctuations and adjust power and frequency on the fly. This results in a 40% increase in data throughput compared to conventional acoustic modems in early bench tests, according to internal company data. Furthermore, the system’s low size, weight, and power (SWaP) profile makes it ideal for small, battery-powered autonomous underwater vehicles (AUVs), which are increasingly used for defense and scientific missions.

The implications for the defense and energy sectors are profound. For the U.S. Navy and allied forces, secure and resilient undersea communication is a top priority, especially for anti-submarine warfare and mine countermeasures. AnySignal’s ability to create jam-resistant, low-probability-of-intercept (LPI) waveforms—a direct carryover from its space-based electronic warfare research—could provide a tactical advantage. In the commercial sphere, offshore oil and gas operators stand to benefit from real-time monitoring of subsea wellheads and pipelines without the need for costly and vulnerable fiber-optic cables. The renewable energy sector, particularly offshore wind, also requires constant monitoring of turbine foundations and power cables; AnySignal’s wireless subsea nodes could reduce maintenance costs by eliminating the need for specialized vessels to retrieve data manually.

However, the transition is not without hurdles. The undersea environment is notoriously unforgiving. Acoustic signals travel roughly 1,500 meters per second in water, compared to the speed of light in space, introducing significant latency that cannot be overcome. AnySignal must therefore focus on edge processing—where the underwater node itself analyzes data and only transmits the most critical information. The company is also facing competition from established players like Teledyne Marine and Sonardyne, who have decades of experience in subsea acoustics. To differentiate itself, AnySignal is pursuing a dual-use strategy, selling to both space and undersea customers with a unified software stack. This allows a single engineer to write a waveform once and deploy it across a satellite constellation or a fleet of AUVs. Investors have responded positively to this cross-domain approach; the company recently closed a Series A funding round that valued it at over $150 million, with participation from both aerospace venture capital firms and blue economy funds.

Looking ahead, AnySignal plans to demonstrate its subsea technology in a live trial later this year in collaboration with a major oceanographic research institution. The trial will involve deploying a swarm of small AUVs equipped with AnySignal modems to map a section of the seafloor and transmit the data back to a surface buoy. If successful, this would be the first demonstration of a space-derived SDR operating reliably in the deep ocean. The company also intends to open a new facility in San Diego, a hub for both naval and undersea technology, to be closer to its new customer base. The long-term vision is a “hybrid network” where satellites, high-altitude platforms, surface ships, and underwater vehicles all communicate seamlessly using a common, software-defined protocol. This would effectively create an Internet of Things (IoT) that spans from orbit to the ocean floor, a concept that has long been theorized but never practically realized.