This sub-class includes land surveying services. Units in this sub-class are primarily engaged in: •conducting of cadastral survey and/or strata survey •conducting of geodetic survey •conducting of topographical survey •conducting of photogrammetry mapping (airborne and terrestrial) •conducting of 2D and/or 3D Mapping (including using laser scanning and/or drone) •conducting of engineering survey (including setting out survey, tunnels monitoring, ground monitoring) •land and/or boundary surveying activities •subsurface surveying activities •cartographic and/or spatial information activities