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is an innovative American high-tech company with 20 years of successful operating history in San Diego, California.

Link Quest is specialized in developing and manufacturing sophisticated electronic systems using advanced acoustics, Doppler, array signal processing, digital signal and imaging processing technologies for underwater and medical applications.

Link Quest manufactures full function diagnostic ultrasound imaging systems with premium image quality, the FDA-approved SQ860 General Diagnostic Ultrasound System and the SQ810 OEM Ultrasound Imaging System. is a leading manufacturer of precision acoustic instruments for offshore oil exploration, construction, drilling, survey, environmental study and other oceanographic applications.

Our innovative Technology sets new standard for acoustic communication and positioning.

Link Quest’s Flow Quest Acoustic Current Profilers and Nav Quest Doppler Velocity Logs provide highly competitive solutions for current profiling or precision underwater navigation applications.

Link Quest's Echo Sweep 300 Multibeam Echosounder is a high-resolution, highly robust and cost-effective swath bathymetric system for mapping of sea floor, inland waterways and reservoirs. is the only company in the world capable of producing sophisticated underwater acoustic modems, USBL tracking systems, acoustic current profilers, Doppler velocity logs and multibeam echosounders.

Over years, Link Quest has earned an extraordinary reputation in terms of product performance, product quality and customer support.

Link Quest is the dominant supplier of underwater acoustic modems in the world.

Its transport more than 95% of the world's acoustic communication data.

These systems have set a series of technical performance records in field deployments all over the world.

The Sound Link acoustic modems have formed the world's largest underwater acoustic communication networks with hundreds of nodes.

Link Quest's line of are ideal for measuring currents and flows in oceans, harbors, lakes and rivers.