GateHouse A/S ni mtoa ya bidhaa na huduma kama vile offshore uhandisi washauri,ndogo ya bahari uzalishaji wa kudhibiti washauri,offshore mafuta ya petroli uhandisi washauri,geotechnical uhandisi washauri,echo huduma sounding,tafiti, seismic,baharini seismic utafiti washauri,tafiti, geophysical utafutaji,wapima ardhi, seabed,tafiti, kijiografia, angani au ardhi.