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.




SPL TOOLBOX is Seiche’s new proprietary Source Pressure Level Field Data Processing and Analysis Software. It allows underwater acoustic and navigation data to be processed, analysed and interpreted for actionable and understandable results to clients. Regulators are increasingly recognising the value of field data and mandating their use in operational planning. SPL TOOLBOX has the […]


RT @Mark_J_Burnett: With the Ashridge Engineering team at @thameswater Supplier Day today. Hoping the gazebo doesn’t take off... https://t…
Pics from our #PAM course boat trip. Our next PAM course in NZ 1-5 Oct, New Orleans 18-20 Oct, and UK 5-7 Dec. If… https://t.co/wCiwhMvhA5
RT @AutoNautUSV: #blackandwhitechallenge accepted! One of our beautiful boats looking moody. No explanation, no humans (no problem). Man…
Thrilled to announce our Official Partnership with The Ocean Cleanup the revolutionary system to fight back against… https://t.co/bmsKF239yk


The new MicroPAM is a full PAM monitoring and mitigation system in small, highly portable package. It is IP67-rated and designed for use in tough, marine environments. Featuring interchangeable hydrophone cables in single or multi-sensor arrays it may be used as an autonomous sound recorder, or linked to a laptop computer for real-time monitoring.   […]

6 x Hydrophone Array

Seiche has been putting its recently developed 6xHydrophone Array into active service as part of a package with 3×120°TI/HD Camera Systems, plus PAM and Camera Operators. Our latest project commenced at the end of 2017 and ran for period of six months. Contracted by AIS, and working for Fugro, we undertook a Geophysical/Geotechnical survey utilising […]

Middelfart Listening Station

Middelfart is a marine protected area containing a high density of harbour porpoises. Seiche is working in partnership with Aarhus University and Naturpark Lillebaelt to provide real-time monitoring of porpoise activity and levels of ambient sound. The aim of the Listening Station is to help gain an understanding of why this area is important for […]