Excellence in Sound. GeoAcoustics Ltd is a leading provider of high-quality underwater acoustic solutions for customers working in both inland waterway and marine hydrographic surveying, dredging and marine-research fields. With a global presence through our network of channel partners we specialise in the design, development, manufacture and commissioning of advanced side scan, bathymetry and sub-bottom profiling sonar-systems. GeoAcoustics' history started in 1978 as Ferranti ORE. From 1992 to until 2008 it traded as GeoAcoustics. In 2008 it became part of Kongsberg Maritime AS until December 2020 when it returned to independent ownership.