About Us

GSE is an end-to-end service provider offering services ranging from preliminary study to interpretation through data acquisition and processing as well as consulting in Geology, Geophysics, Geochemistry, Groundwater, Marine Geoscience, Agronomy, Biogas, Geothermal Feasibility Studies and Production.

Our vision is to contribute to the advent of sustainability globally by providing our clients with the best solutions to optimize their resources development.

The focus of our business is rooted in the understanding that the exploitation of energetic, mineral, and land resources has been the backbone of human civilizations throughout the ages. Naturally, inherent to the exploitation of these resources are challenges such as identifying them, quantifying them, and integrating them in a circular framework that increases efficiency and ensures sustainability.

We utilize science together with cutting-edge technological tools and concepts to meet the aforementioned challenges.

Our core strengths

Multi- and Interdisciplinarity

We integrate several fields of science with cutting-edge technology.

Highest Standards

We perfectly understand and use state-of-the-art methods and technologies.

Maintaining the edge

Our industry-oriented and innovative R&D approach is strengthened by academic collaborations.

International collaboration

Our partner institutions are recognized as world leaders in all or part of the resources development process.

Our core values


To achieve your goals and contribute to sustainability.


Quality is our creed.


Paves the road to optimization.


Constantly looking for new and better ways to do better.


Yoshihiro Maruyama

Yoshihiro Maruyama is graduated from Tokyo University of Science in 1996 (major in physics) and completed the master’s program at the University of Tokyo in 1998 (major in earth and planetary physics).

He joined Fujitsu Limited in 1998 and engaged in the development and operation of ground systems for earth observation satellites.

After that, he joined CRC Solutions Corp. (currently ITOCHU Techno-Solutions Co., Ltd.) in 2005, to oversee the development of various simulators using VR technology, sales support, and analysis work for production logistics and process simulation software.
In 2009, he was in charge of the consulting services related to the spread of renewable energy centered on solar power (promotion of services commissioned by national government agencies and independent administrative agencies, such as research, R & D, and demonstration projects for the spread of renewable energy), Consulting for renewable energy power generation companies, system development, etc.).

And since October 2009, he is appointed as Geoscience Enterprise’s CEO.

Corporate Profile

Corporate Name
GSE (Geoscience Enterprise Inc.)

Yoshihiro Maruyama

Head office
Shibakoen ND Bldg. 6F, 2-5-10 Shiba, Minato-ku, Tokyo 105-0014, Japan