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

LinkQuest 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. More information is available at

LinkQuest Inc. is a leading manufacturer of precision acoustic instruments for offshore oil exploration, construction, drilling, survey, environmental study and other oceanographic applications. Our innovative Broadband Acoustic Spread Spectrum (BASS) Technology sets new standard for acoustic communication and positioning. LinkQuest’s FlowQuest Acoustic Current Profilers and NavQuest Doppler Velocity Logs provide highly competitive solutions for current profiling or precision underwater navigation applications. LinkQuest's EchoSweep 300 Multibeam Echosounder is a high-resolution, highly robust and cost-effective swath bathymetric system for mapping of sea floor, inland waterways and reservoirs. LinkQuest Inc. 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, LinkQuest has earned an extraordinary reputation in terms of product performance, product quality and customer support.

LinkQuest is the dominant supplier of underwater acoustic modems in the world. Its SoundLink High Speed Acoustic Modems 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 SoundLink acoustic modems have formed the world's largest underwater acoustic communication networks with hundreds of nodes.

LinkQuest's line of TrackLink Acoustic Tracking Systems provide the world's most robust, accurate and cost-effective Ultra Short Baseline (USBL) solutions. The TrackLink systems are the world's best selling USBL tracking systems.

FlowQuest Acoustic Current Profilers
are ideal for measuring currents and flows in oceans, harbors, lakes and rivers. With its capability for significantly longer range, standard deepwater depth rating and seamless integration with third-party sensors and LinkQuest acoustic modems, the FlowQuest system is not just a current profiler but also serves as a focal point for underwater deployments.

NavQuest Doppler Velocity Logs (DVL)
are ideal for precision navigation and positioning of underwater vehicles. With their capability for fast and accurate velocity output, significantly longer range and smaller minimum altitude comparing against similar products, the NavQuest Doppler Velocity Logs are the excellent choices for underwater precision navigation applications.

EchoSweep 300 Multibeam Echosounder is a high-resolution, highly robust and cost-effective swath bathymetric system for mapping of sea floor, inland waterways and reservoirs. The EchoSweep system is a useful tool for hydrographic and bathymetric surveys, underwater inspections, dredging, pipeline inspection, cable-laying, and many other underwater applications.

LinkQuest's PinPoint LBL Acoustic Positioning Systems are highly accurate and robust. These long baseline positioning systems excel in narrowly confined, long-range shallow water and noisy environments.

LinkQuest's Precision Marine Geodetic System is the world's only commercial acoustic positioning system capable of better than 0.5 cm in accuracy. These systems have been extensively deployed for Tsunami and earthquake monitoring and prediction.


Recent News


Ultra Long-range FlowQuest 75 Acoustic Current Profilers Delivered to Spanish University

TrackLink 1500HA USBL Systems Delivered to Japan

LinkQuest Completed Delivery of Acoustic Modems to a Large Offshore Wind Turbine Project

Tracking and Communicating with Multiple Manned Submersibles

New Product:  FlowQuest 600 Micro Acoustic Current Profiler

FlowScout 2000 Acoustic Flow Meter Shortens Minimum Measurement Distance

New Product:  LinkQuest Enters Multibeam Echosounder Market

LinkQuest Acoustic Modems Continue their Successes in Offshore Oilfields

TrackLink 1500HA USBL System Delivered to Japan

LinkQuest Delivers a TrackLink 5000HA System to Israel Oceanographic & Limnological Research


Trade Shows

Oceanology International 2020
March 17-19, 2020
Booth L20
ExCel London
London, UK

Oceanology International 2018
March 13-15, 2018
Booth F10
ExCel London
London, UK

Oceanology Internatinal North America 2017
February 14-16, 2017
Booth A18
San Diego Convention Center
San Diego, CA, USA

LinkQuest, Inc. 1999    Last Updated August 2021