Managing director Roy Wyatt, 65, set up this Devon business in a barn in 1998. It specialises in the development of acoustic systems for monitoring marine mammals such as dolphins and whales. Seiche also provides specialist cameras, software and modelling techniques for the same purpose. Its technology is used by the likes of Shell, BP and Exxon Mobil to measure and mitigate the effects of activities such as seismic surveys on marine life. Turnover hit £5.6m in 2014.

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Company details
Year2015
Rank61
CompanySeiche
ActivityMarine detection systems developer
LocationDevon
Average 3 year sales growth57.83%
Latest sales £000s5,581
Staff37
Founded1998
Websitewww.seiche.com

If applicable:

* supplied by company † annualised figure