We are a world-leading marine technology company specialising in underwater acoustics. Our systems enable clients to comply with environmental regulations to protect marine life from the effects of sound in water. We provide expertise in Mitigation, Measurement and Modelling.

PrintStarted in 1996 to undertake underwater acoustics research projects, the company was involved in the early stages of Passive Acoustic Monitoring (PAM) development and is now the market leader in its field.

Seiche has a global reach via its offices in the UK, USA, Scandinavia and South Africa, and also maintains strong partnerships with industry, academics, and government agencies around the world.

In the recent Sunday Times Tech Track 100 Index, Seiche was placed as Number 1 manufacturer in the South West and Number 2 in the UK as a whole.

We are committed to supporting all our equipment in the field and provide 24/7 rapid response to all on-site queries.


Digital Thin Line Array

March 2017

Seiche’s Digital Thin Line Array is a high-performance, low-noise acoustic array that provides highly sensitive passive acoustic monitoring. The array measures just 20 mm in diameter and houses 8 digital hydrophone sensors, but can be configure for up to 32. The topside electronics are contained within a compact, robust housing. Each hydrophone sensor incorporates a […]


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RT @LSTN2hydro: Used the LSNT2 for Passive Acoustic Monitoring at #ECS2017 @SeicheTraining @WildlifeAcoust @MarineGadgets @Marine_Discover…
RT @AutoNautUSV: Probably the best underwater listening station in the world. Safe travels @SeicheTraining to #Middelfart #ECS2017 @EuroCet

AutoNaut USV for PAM with thin line digital or analogue array

February 2017

The AutoNaut is a near silent vessel and therefore ideal for Passive Acoustic Monitoring (PAM). Equipped with a Seiche hydrophone array system, the PAMAutoNaut provides a revolutionary new technique for marine acoustic surveys. It resolves the issues of traditional monitoring methods by providing both mobility and high signal-to-noise ratio and can unobtrusively monitor marine mammals.  […]

Modelling Training course

February 2017

This 2 day course equips delegates with a thorough knowledge of underwater acoustic modelling. The course is delivered by leading research professors and experts in their field, including Prof Georgy Shapiro, Dr Feng Chen and Dr Paul Lepper. Underwater Acoustic Modelling introduces all the key concepts and opens up a learning pathway to those wishing to […]

Wireless PAM

February 2017

The Seiche Wireless PAM system (W-PAM) enables transmission of full acoustic data from any marine platform in true real-time. This is necessary for effective mitigation (rather than near real-time or summary data). The system is integrated within Seiche buoys and rafts or can readily be installed on other platforms, such as Unmanned Surface Vehicles (USVs). […]