Start-up to foundation building period

In 1951, Atsuo Fukada, an assistant of Hokkaido University, collected an enormous amount of ammonite in order to investigate the stratigraphy of the upper Cretaceous layer, which extends into the flooded area of the planned dam site. The geologic maps and geologic sections produced by Fukada caught the eyes of the people involved in dam construction and were found to be very useful for determining the location and design of dam sites and quarry sites (the mountain from which the materials necessary to construct the dam were collected). This led to the establishment of the Fukada Geological Research Institute, which is the predecessor of OYO Corporation, to create the interface between the geological field and the civil engineering field.
In 1957, the OYO Geological Survey Office was established under the banner of "Creating Geological Engineering." The company had capital of 5 million yen, 68 shareholders, and 21 employees. The company's name "OYO" can deal with the ground as a whole, and is proud of the fact that it is the first class in the field of "geology application."

Growth period

As Japan entered a period of high economic growth, large-scale infrastructure such as the Meishin Expressway, the Tomei Expressway, and the Tokaido Shinkansen were built one after another. At the same time, demand for geological surveys increased rapidly, and the OYO Corporation business grew dramatically.
Through a combination of detailed geological surveys, geophysical exploration, and boring, we have developed a new standard for geological surveys in the construction business by creating the interface between civil engineering and geology. The necessary instruments for the survey were made by us, and it was developed into the manufacturing and sales business of measuring instruments.
Meanwhile, the Niigata Earthquake occurred in 1964, and we dispatched a disaster investigation team voluntarily for the first time, because we thought that, as Japan is a country with many natural disasters such as earthquakes and storms and floods, we should aim to use our own research technologies for mitigating the damage caused by those disasters. This led us to dispatch the investigation team in response to large-scale earthquake disasters in Japan and overseas, and to continue to study the mechanisms of disasters and the actual conditions of damage.
In 1965, we exhibited measuring instruments at the Japan Industrial Exhibition held in Beijing and Shanghai. We took the first step as a manufacturer, and at the same time, we entered overseas markets for the first time.

Revolution period

Environmental business as “a creation of the interface between civil engineering and chemistry”, rivers business and energy fields business had shifted in high gear.
1979, the 25th anniversary of founding. We have grown into a company with 700 employees and sales of more than ¥10 billion.
Starting with the establishment of the first overseas subsidiary in Houston, Texas, in 1980, we established branches in UK and Singapore. Our overseas business activities had shifted in high gear.
Meanwhile, in Japan, the business environment deteriorated due to the economic recession following the second oil crisis and to the restraint of public investment. As the results, in fiscal 1983, sales and operating income declined for the first time since the establishment of the Company. Beyond the geological survey industry, where the market had begun to shrink, the company had shifted its business direction to a comprehensive consultant, including design and construction management in the construction field, maintenance and management of infrastructure facilities, environmental fields such as industrial waste and groundwater pollution countermeasures, disaster prevention, and regional development. On May 20, 1985, we changed our name to "OYO Corporation" in order to clarify our corporate vision for the 21st century.
Starting with the acquisition of Geospace Inc. in US in 1986, we acquired Kinemetrics Inc. in US (1991) and Geometrics Inc. (1997). Overseas mergers and acquisitions had become more active.
In 1992, the “Core-Labo Testing Center” was established as a comprehensive testing and research center for rock, soil, and water.
Listed on the First Section of the Tokyo Stock Exchange on June 1, 1995.

1995 Listed on the First Section of the Tokyo Stock Exchange (Upper)/
1982 Kansai International Airport soil investigation (below)
Aerial survey of volcano structure
by electromagnetic and magnetic exploration

New Growth period

In 1997, the 40th anniversary of founding. Established the OYO Bionomical Engineering Institute in Miharu-cho, Fukushima Prefecture with the aim of "integration of civil engineering and ecology".
In 2009, the long-term management vision "OYO 2020" was formulated, in which the vision that the Group should aim for and the basic policy for achieving the vision were specified, as construction-investment-type public works was shrinking, and the social situation was changing rapidly. We aimed to expand our business by eliminating our past success experience (i.e. a conventional business during our high growth period) and by changing our business style.
In 2014, the third medium-term management plan "OYO Step14" was formulated. In the plan, we challenged for replacing the shrinking old-style businesses with new-style businesses.
In 2018, the fourth medium-term management plan “OYO Jump18” was announced. In the plan, we are aiming to accelerate the challenges we have tackled so far, and to expand our business and further strengthen our management foundation in order to achieve sustainable growth of the Group.

2009 Formulated long-term management vision "OYO2020" (top)/
BCP Solution “ServiBers” (bottom)
BIM (Building Information Modelling)