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Sonardyne International Limited


+44 (0)1252 872 288


+44 (0)1252 876 100


Blackbushe Business Park
GU46 6GD
United Kingdom


Maritime, Oil and gas, Ocean science, Defence, Blue economy, Marine resources, Survey and construction, Asset monitoring, Acoustic positioning, Dynamic positioning, INS, USBL, LBL, LUSBL, Drilling, Installation, Marine robotics, AUV tracking, ROV tracking, Data telemetry, Free space optics, Wireless data transfer, Edge analytics

Contact Name:

Graham Brown

Contact Position:

Sales and Marketing Director


Subsea technology for energy, science, security and other developing ocean industries. We are a leading independent global provider of underwater acoustic, inertial, optical and sonar technology. We track, we position, we control, we monitor, we detect, we recover, we image, we locate, we navigate, we avoid, we engineer, we service and we support. We can do this for you, wherever you are operating in the world, safely and responsibly, within your budgets and to your timescales. Find out how by getting in touch with us today.


Sonardyne was founded in 1971 with the vision of improving the safety and efficiency of underwater navigation for divers in the North Sea through innovation in acoustic signal processing, hardware design and custom engineering.  From those origins, innovation and performance have maintained our reputation for technical leadership and, today, we have an unrivalled portfolio of acoustic and non-acoustic technologies for use in the most challenging marine environments. Our vision in 2019 and beyond is to continue to facilitate safe, secure, economical and environmentally sound operations upon and within the world’s seas and oceans.

While underwater acoustics remain at the very core of what we do, our business now reaches far beyond this, driven by both the possibilities of new technologies and the needs of our clients. In just a few short years, sonar imaging, optical communications and inertial navigation technologies have emerged from our research programmes and we continue to break new ground, developing technologies that are already aiding the next generation of marine autonomous systems. Across industry and science, our investment in innovation provides great value to our customers. Survey operations become ever faster and more efficient, deep water vessels are able to operate safely in all conditions, seabed to surface data transfer is fast and reliable, unmanned platforms can be controlled and commanded over the horizon and waterside installations are better protected against the threat of intruders.

Our values are clear; a strong customer focus, passion for engineering excellence and innovation, meticulous attention to quality and a strong commitment to our employees and the community.


Acoustic Positioning

From shallow to deep, our Long BaseLine (LBL) and Ultra-Short BaseLine (USBL) acoustic positioning systems set the benchmark for performance and reliability - helping to precisely navigate underwater vehicles, install subsea structures and position surface vessels. Our new best-in-class LBL software Fusion 2 provides a whole new level of capability, enabling LBL and INS operations from one platform, supported by our latest Wideband 3 signalling protocol, with the fastest positioning update rates yet, plus integrated telemetry. 6G, our sixth generation hardware platform, provides robust performance, ease of use, greater functionality, equipment flexibility and compatibility with aided inertial technologies. No matter how deep, how shallow or how complex the subsea task is, our customers tell us "6G just works".

Inertial Navigation & Motion Sensing

With a track record spanning more than 10 years, our Lodestar gyrocompass and SPRINT inertial navigation system range has evolved to meet the needs of any subsea application, with a smaller housing and a new range of performance levels. When combined with our Syrinx DVL, Lodestar and SPRINT provide unprecedented levels of performance and a single offering for ROV and AUV guidance and survey. Our SPRINT-Nav instrument combines SPRINT and Syrinx into one tightly integrated unit, with a high accuracy intelligent pressure sensor, to provide one of the smallest high performance all-in-one subsea navigation instruments available on the market.

Participation in a recent Innovate UK technology development initiative has resulted in successful integration of an expanded range of position sensors with INS, including DVL water track and laser and radar relative surface positioning systems. This work provides an important step forward in the development of reliable and dependable positioning and navigation aids for autonomous ship operations in GNSS denied environments.

We are also extending the limits of ocean autonomy through another Innovate UK project designed to increase the navigational accuracy of autonomous underwater vehicle systems in the open ocean using a hybrid high-power to low-power INS set-up and the water current profiling capability of our DVL instruments.

Sonar Imaging

We have re-defined what is possible to achieve with high resolution imaging and detection sonars.  Our technology is helping to protect vulnerable waterside facilities and vessels from the threat of attack, to enable autonomous underwater vehicles to gather pixel-perfect imaging of the seabed around them and to monitor a billion cubic feet of water for the smallest of asset integrity breaches in deep water. Our latest generation Navigation, Obstacle Avoidance Sonar (NOAS)  provides an aid to vessels navigating in uncertain waters, detecting potential grounding and collision hazards beneath the waves so mariners can avoid them.

Wireless Communications

6G acoustic and high speed optical communication systems can be used for the extraction of large amounts of stored data from long-endurance subsea sensors or even the transmission of high definition imagery and real-time video. The possibilities are vast, from live monitoring of marine life to enabling autonomous surface vessels to retrieve large amounts of data from subsea vehicles. We regularly integrate a variety of in-house and third party sensors with our technologies to provide complete bespoke monitoring solutions.

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