Sonardyne

Sonardyne International Ltd is a British engineering company that designs and manufactures subsea navigation, acoustic positioning, and underwater communication systems. Headquartered in the United Kingdom, it serves customers worldwide in the offshore energy, defense, and scientific sectors.

Core product areas include USBL (ultra-short baseline) and LBL (long-baseline) underwater positioning systems, inertial navigation systems, Doppler velocity logs, underwater acoustics and modem technology, subsea transceivers, and related sensors. The company’s equipment is used to locate, track, and survey submerged assets and vehicles, enabling precise positioning in challenging underwater environments.

Applications of Sonardyne technologies span remotely operated vehicles (ROVs) and autonomous underwater vehicles (AUVs), seabed mapping, offshore installation and intervention, salvage operations, and hydrographic surveying. The systems are designed to operate in deep water and support complex subsea operations with high reliability and resilience.

Sonardyne maintains a global presence through regional offices, distributors, and service centers, with manufacturing and testing facilities in the UK and other locations. The company collaborates with operators, researchers, and equipment integrators to support a range of marine projects, including offshore energy development, defense applications, and academic or industrial seabed research.

Overall, Sonardyne is recognized for its contributions to underwater navigation, acoustic telemetry, and subsea communication, providing foundational technology for modern subsea survey, construction, and exploration activities.