OYO Corporation provides geological survey services in Japan and internationally. The company operates in four segments: Infrastructure Maintenance, Management, and Renovation, Natural Disaster Prevention and Mitigation, Environment, and Natural Resources and Energy. The Infrastructure Maintenance, Management, and Renovation segment provides underground facility information services; social infrastructure maintenance/ longevity services; non-destructive buried-pipe exploration radar system; construction support services for 3D ground information technology; 3D ground information analysis systems; transportation environment management services; and under-road cavity exploration services. The Natural Disaster Prevention and Mitigation segment offers seismic motion calculation and damage prediction services; tsunami simulation / inundation area prediction services; hazard mapping sensor solutions; landslide disaster measures support services; watershed/flood control services; fire spread prediction and prevention systems; seismometer network system; and volcano monitoring system. The Environment segment provides disaster waste disposal plan/ rapid treatment support services; Fukushima reconstruction support-related services; green infrastructure services; soil/groundwater pollution investigation/measures support services; asbestos analysis and removal services; environmental stewardship support services; and environmental analysis/ environmental assessment services. The Natural Resources and Energy segment offers offshore wind power generation support services; energy facility disaster prevention measures support services; geothermal power business support services; methane hydrate development research business support; and ground-source heat implementation support services, as well as engages in the manufactures and sells natural resource exploration equipment. The company was founded in 1954 and is headquartered in Tokyo, Japan.