Saildrone :: Long-Endurance, Wind & Solar-Powered Autonomous Vessels

Saildrone is a U.S.-based ocean technology company specializing in the design, manufacturing, and operation of unmanned surface vehicles (USVs) and autonomous maritime systems. Headquartered in Alameda, California, Saildrone has pioneered the development of long-endurance, wind- and solar-powered autonomous vessels capable of operating in the world’s harshest ocean environments for extended periods. With over 12 years of operational experience, more than 2 million nautical miles sailed, and 60,000+ days at sea, the company has become a trusted provider of persistent maritime intelligence, mapping, and mission effects for defense, scientific, and commercial applications.

Saildrone’s core innovation is its fleet of wind-powered USVs that combine proven autonomy, advanced sensors, and long-endurance propulsion. These robotic vessels operate with minimal human intervention, delivering real-time data and mission capabilities while reducing the need for large, expensive crewed ships. The company offers both data-as-a-service and platform-as-a-service models, allowing governments and organizations to access persistent ocean intelligence without owning or maintaining the hardware.

Key robot-based (autonomous maritime) products include:

• Saildrone Voyager: A versatile mid-size USV designed for maritime domain awareness, counter-narcotics, illegal migration monitoring, electronic surveillance, and coastal mapping. It serves as a reliable multi-mission platform for persistent presence in coastal and blue-water environments.
• Saildrone Surveyor: A larger, deep-ocean capable vessel optimized for high-resolution seabed mapping, undersea detection, persistent ISR (intelligence, surveillance, reconnaissance), and maritime power projection. It integrates advanced sensors for above- and below-surface operations.
• Saildrone Spectre: The company’s newest and most advanced platform, introduced as a next-generation naval USV. It comes in two variants — Silent Endurance (optimized for ultra-quiet anti-submarine warfare and long-duration ISR) and Stealth Strike (configured for low-observable, high-speed kinetic operations). Spectre features flexible payload capacity for sonar, launch systems, and containerized mission systems, addressing critical capability gaps in naval operations.

Saildrone USVs are equipped with sophisticated autonomy, satellite communications, and modular payloads for meteorological/oceanographic (METOC) data collection, bathymetry, fisheries monitoring, and defense missions. The company emphasizes operational resilience, data delivery speed, and cost-effective persistence compared to traditional crewed vessels. Saildrone continues to expand its capabilities in contested maritime environments, supporting national security and scientific objectives worldwide.