Graduated from the Faculty of Law at the University of Tokyo in 1986 and joined the Bank of Japan. Engaged in a wide range of operations, including Policy Planning Division, London Office, Management Strategy Division, Head of Monetary Division of Osaka Branch, General Manager of Kofu Branch (2009-2012), Media Relations Division, secondment to the Deposit Insurance Corporation of Japan, General Manager of Fukuoka Branch (2017-2018). In 2018, joined Rating and Investment Information Inc. as Senior Executive Managing Director. Current position from April 2023.

Graduated from Toyo University, Faculty of Law in 1997. He joined Seven-Eleven Japan, Inc. and worked as a instructor for franchise owners and moved to the Store Development Division where he executed more than 100 franchise agreements and land/building contracts for store openings. In 2013, he joined Mirai Co. a venture company of fully artificial light-type plant factory as Executive Officer of Operation Division. He was also involved in the restructuring of the company through civil rehabilitation in 2016. In October 2018, he joined GPSS Holdings, Inc.

Executive Officer
Geothermal Development & Investment Inc.
Executive Officer
Japan Bio Methane Inc.

Graduated from the Faculty of Law at the University of Tokyo in 2006 and joined the Sumitomo Mitsui Banking Corporation, pursuing corporate sales and compliance-related work. Joined ORSO Co., Ltd. in 2013 and engaged in project management work related to the production of content for smartphones. Joined GPSS Holdings Co., Ltd. in 2017, also engaging in project management work; has been in current position since November 2019.

He graduated from the Faculty of Economics at Keio University and holds a Masters of Space Studies from the International Space University in France.He was engaged in budgeting, organization, parliamentary affairs, and space science planning at the Japan Aerospace Exploration Agency (JAXA).In addition, he was promoting the Japan-Europe Cooperative Mercury Exploration Project as Acting Director of the Paris Representative Office.At Cosmotec Co.,Ltd.,he constructed a geothermal power plant in Beppu as General Manager of the New Energy Business Division.After that,he joined the predecessor company of GPSS in 2015, and is devoted to geothermal development.His favorite activities include surfing, canoeing as fishing, walking with his dog, and making sushi.

Representative Director
Geothermal Development & Investment Inc.
Representative Director
GPSS Energy Product Inc.

In 1986, Niimi graduated from the University of Tokyo, the Faculty of Law, and joined the Mitsubishi Bank, Ltd. (currently Mitsubishi UFJ Bank, Ltd.). After the secondment to Embassy of Japan in the USA (in Washington, D.C.), he experienced various corporate planning/business planning/HR planning functions in Regional Headquarters for the Americas (in New York), Corporate Planning Division, and Investment Banking Planning Division. From 2008 he served as Head of Strategic Alliance Office of Mitsubishi UFJ Financial Group, from 2013 served as Head of Corporate Planning Division of MUFG Securities Holdings, from 2016 served as Deputy CEO of MUFG Securities Americas Inc. (in New York), and from 2018 served as Executive Officer of Mitsubishi UFJ Financial Group in charge of Corporate Planning Division. 
In 2021, he joined GPSS Holdings, Inc. as the current position.

Graduated from Tokyo University with Bachelor of Economics and did Master’s degree in Science (Finance) at London Business School. Originally joined the Industrial Bank of Japan (IBJ) in 1989 and moved to IBJ International (London) in 1993 engaging in Debt Capital Markets (DCM) and Securitization business. Returned to Japan in 2000 and started careers in M&A advisory at IBJ and Mizuho Securities. In 2005, Hironobu joined the Morgan Stanley, and until 2016 and 2018, he had been among the market’s most experienced M&A bankers with extensive track record in both domestic and cross-border transactions focusing on industrial, technology and telecom sectors as a Managing Director at Morgan Stanley and Sangyo Sosei Advisory (M&A Boutique), respectively. Most recently responsible for private equity investment as a Managing Director at Japan Industrial Partners Inc.. Joined GPSS in January 2022. 

After Environmental Engineering Ph.D.,Daisuke began to be engaged in research and development of composting, methane fermentation, etc.at a public research institute in 2005. From 2007, he worked in management support for university-launched venture companies at a quasi-public institution.At the same time, he was also a specially appointed assistant professor at Osaka University.
In 2010, he joined Rimatech Corporation, a waste recycling company, where he was engaged in business planning and R&D focusing on subcritical water-methane fermentation.
After the Great East Japan Earthquake in 2011, he was engaged in disaster waste management planning and treatment in Iwate Prefecture.Through the subsequent activities for reconstruction, he reaffirmed the significance of building a recycling system for local production and consumption and the potential of biogas power generation in this system.
Therefore, in 2014, the methane fermentation division was spun off as an independent company to establish Rinajen Corporation, which is responsible for biogas power generation EPC.
In 2017, he founded Arsec, Inc.to create biogas power generation projects and provide consulting services for resource recycling. He joined GPSS Group in April 2021.
Representative Director
Arsec Vietnam

Graduated from Hatakeyama Gakuen Toryo High School in 1990. Until 1996, while he worked, he acquired a beautician license. In 1997, he returned to Iwate Prefecture, which is known as the prefecture that has an abundant nature. There, he immersed himself in skiing, which he learned in his childhood. 
Yuichi is a Ski Association Japan (SAJ) instructor and B class examiner, who has traveled not only across Japan, but through the southern hemisphere, and around Europe.
In 2016, he met Mr. Mezaki and Mr. Kurata, (Co-CEO of GPSS Group) and their passion for the future of Japan and agriculture x energy resonated with him. With GPSS, he established Mirai Chiiki Co. Ltd. in 2017, where he has remained up to present.

Yoshihiro Maruyama graduated from Tokyo University of Science in 1996 (major in physics) and received a Master’s degree in Earth and Planetary Physics from the University of Tokyo in 1998. He joined Fujitsu Limited in 1998 and engaged in the development and operation of ground systems for earth observation satellites.
In 2005, he joined CRC Solutions Corp. (currently ITOCHU Techno-Solutions Co., Ltd.) to oversee the development of various simulators using VR technology, sales support, and analysis work for production logistics and process simulation software.
From 2009, he was in charge of the consulting services related to the spread of renewable energy centered on wind power and solar power (promotion of services commissioned by national government agencies and independent administrative agencies, such as research, R & D, and demonstration projects for the development of renewable energy, consulting for renewable energy power generation companies, system development, etc.).
Since October 2019,  Maruyama has been the CEO of Geoscience Enterprise Inc. (GSE) of the GPSS Group. 

Upon graduating from the Business Management Department at National Cheng Kung University (NCKU) in Taiwan, commenced work at the container shipping service company, Maersk Line (Denmark).
After a successful stint at Maersk, joined NOL (Singapore) as sales manager in Taiwan and later took up the role as vice president for a Sino-French joint-venture, also in Taiwan, focusing on the sale of indoor and outdoor polycarbonate cellular sheet construction material. Later, served as senior director at an LCD/LCM manufacturing factory for a Sino-Japanese joint-venture in China, and then relocated to the U.S. as sales director.
Also served as general manager for a Taiwan-backed UPVC/CPVC manufacturing factory in China and later as sales director at Nano Architecture Research Corporation, the sales agency company which held an exclusive licensing agreement with Alcatel Group (France), promoting vacuum plasma applications in Taiwan for use in the semiconductor field.
After 10 years as sales director in the fields of PV solar cell, module manufacturing and power system operations, joined Japan Mega Solar in Tokyo in 2016, and in July 2019, helped establish GPSS Taiwan in Taipei, and currently serves as managing director.

Graduated from Waseda university, the School of International Liberal Studies in 2010.
Joined to measurement instrument company and engaged sales to EU mobile phone and base station vendors. Joined to agriculture start-up in 2013 and engaged in overseas plant sales of artificial light indoor farm, At the opportunity of Russia Khabarovsk project, joined predecessor company of GPSS HD in 2016. Engaged in domestic geothermal business development through collaboration with local communities in Miyagi and Niigata area. Newly responsible overseas renewable energy business development from Dec.2023.

1990: Graduated from National Institute of Technology, Tokyo College, Department of Civil Engineering.1990: Joined a general construction company in Kanagawa Prefecture. Engaged in construction management of public and private civil engineering works. He was also involved in the construction of Shiokaze (Odaiba) Park that was a part of the cancelled World City Exposition in Tokyo. 2000: Left the company after obtaining a national qualification. 2004: Founded a civil engineering construction company in Yokohama City. He is involved in public works and large-scale construction of housing lots. He owned many jumbo trucks and dump trucks, a dream of his since he was a child. 2013: Joined the predecessor company of GPSS Holdings at its inception. He now engages in construction management and construction work and investing in personnel development.

Bachelor of Mechanical, Faculty of science and engineering, Waseda University. Joined Mitsubishi Heavy Industries, LTD in 1997 and started his career in the industrial power plant such as waste to energy steam power plant, biomass power plant, combined heat and power plant, gas turbine based power plant for both domestic and oversea customers. Since 2010, he had been focusing on combined cycle gas turbine power plant for oversea utility customer. From 2017 to 2021, he had been in United Kingdom and Germany as an Expat to explore capable consortium partners and engage the agreement with them, manage the bid preparation and contract negotiation. Joined GPSS in January 2022.

Joined the famed Mitsubishi Corporation in 1974, as a member of the the Iron Ore Department. Upon obtaining an MBA from the European Business School (INSEAD) in 1981, joined the Investment Summary, Examination Division of Mitsubishi Corporation. Member of the planning staff on European Mitsubishi Corporation invested in Europe and Africa Strategy since 1986. Established MCF Financial Services (London) in 1990 and assumed the position of advisory president of business of acquisitions between Japan and Europe, Merchant · banking investment in Europe, LBO finance etc. Non-dye business In 1994, he returned to Mitsubishi Corporation headquarters and founded an investment company in Asia, promoted private equity investment, promoted advisory work in China and Asia, moved to Ripple wood Holdings (New York) since 1996. In 1999, as a founding member of Nippon Fund’s Japan base set up by Ripple wood, participated in management of RHJ Inn 2005 Appointed over the National Representative Director.
Participated in Crosspoint Advisors, an independent advisory firm, gathered from global investment banks and general trading companies since 2012. He is engaged in advisory business on cross border M & A, business revitalization advice, fund placement support and others.
· Crosspoint Advisors Corporation, Representative Director
· Joyful Co., Ltd. Honda, Outside Director
· General Association Social Investment Partners, Founding Director
· Music Masters Course of the General Association, Director
· Asian Venture Philanthropy Network (Singapore), Outside Director
· Waseda University Business School, part-time lecturer (in charge of business revitalization)

Engaged for almost 30 years in various capital market and investment banking activities, including private equity investments and corporate finance services. As Senior Vice President, Division Chief Operating Officer, managed the Financial Services Division of Mitsubishi Corporation. Advisor of Financial Products Group Co. and a corporate auditor to Japanese corporations, including The Hachijuni (82) Bank. Former visiting professor and lecturer in the field of business administration at the Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology.
H. Lawrence Hull, Jr. Leadership Awardee and a lifetime member of Pacific Pension Institute and former member of the Board of Directors.
B.A. in Law, University of Tokyo, Japan (1971) M.B.A, Stanford University (1981)
· President of Kadota & Co., Inc.
· Representative Director of Institute of Corporate Governance, Japan
· Corporate Auditor of The Hachijuni (82) Bank

Previously involved in investment banking for over 30 years, including at Morgan Stanley and Merrill Lynch, since first joining Yamaichi in 1974. Served as financial advisor for many major Japanese corporations and financial institutions. Retired as Vice Chairman of Merrill Lynch Japan in 2005. Has been engaged in the management of industrial corporations including Ebara Foods, Olympus, Pacific Metal, Cyberdyne and 3DOM as outside board director, as well as at other corporations.　 Also served as president at Recof, a boutique M&A advisory firm, from 2008 through 2010. Lectured on M&A for Executive MBA at Aoyama Gakuin University from 2010-2013.

B.A. in Economics, Keio University (1974) MBA, Columbia University (1980)
· Outside Director of PACIFIC METALS CO.,LTD.
· Outside Director of CYBERDYNE, INC.
· Chairman of 3DOM Inc.

Mami Yoda started her career as a securities analyst at Credit Suisse Tokyo Branch, where she was responsible for equity and industry research since she joined in 1986. She also received a corporate scholarship from Credit Suisse for her study at the master’s program at MIT Sloan School of Management. In 1997, she joined Standard & Poor’s International LLC as a credit rating analyst, where she was responsible for rating major Japanese, Korean, and Chinese corporations and local governments. Since she was promoted to a Management Director in 2005, she became responsible for managing analytical teams in charge of securitization and corporate/ government ratings. In 2009, Mami left Standard & Poor’s to pursue her interest in regional revitalization and entered the doctoral program at Hokkaido University’s Graduate School of International Media, Communication, and Tourism Studies. After working on projects related to community revitalization and organizational development and serving as a committee member and board member of non-profit organizations, she joined the Faculty of Arts and Sciences at Sagami Women’s University in 2017, where she participated in the launch of the Graduate School of Social Entrepreneurship.
Bachelor of Arts in Literature, Tsuda College (1984), Master of Science in Management, Sloan School of Management, Massachusetts Institute of Technology (1992); Doctor of Philosophy in Tourism Studies, The Graduate School of International Media, Communication, and Tourism Studies, Hokkaido University（2018）.
・Professor, Graduate School of Social Entrepreneurship and Arts and Sciences, Sagami Women’s University
・Director, Concordia Financial Group (Outside)
・Director, NPO “The Most Beautiful Villages in Japan”

In 1975, Yasuhiko Matsumoto joined Sanwa Bank, Ltd. He worked in the banking department for 30 years, after which he was involved in mergers, later becoming the Iidabashi Branch Manager. In 2002, he also served as the Executive Officer of UFJ Bank, Ltd., and First General Secretary. In 2004, he became the Managing Executive Officer.

In 2006, he joined Takashimaya Co., Ltd. He operated in a wide range of areas including Planning, Management, Sales, CSR, IT, Reform Promotion, and Overseas Development. In 2009, he became the Managing Director followed by the position of Senior Managing Director (representative director) in 2010. Finally, in 2014, he became the President of Toshin Development Co., Ltd, and retired from this role in 2018. He is a graduate of the Faculty of Economics, Keio University (1975).

Shuhei Miyamoto joined Nippon Oil Engineering Co., Ltd. in 1979. He was engaged in engineering related to oil and natural gas development. After working in Saudi Arabia, he supported the local operation of offshore oil field development in Bohai Sea in China. After that, he provided advisory services to the Ministry of Petroleum and state-owned oil companies, where he consulted with Export-Import Bank of Japan, JICA, Japan National Oil Corporation (JNOC), and other trading companies. In 1998, he was transferred to Teikoku Oil Co., Ltd. as Director and General Manager of the Office, where he was in charge of overall business planning domestic planning of natural gas business and was also responsible for the development of trunk pipeline networks and LNG introduction plans.
In 2006, he oversaw the business’ integration with INPEX CORPORATION. He has been in charge of INPEX CORPORATION since 2011 as Managing Executive Officer and Deputy General Manager of Corporate Planning Division, also as the General Manager of America & Africa Business Division from 2012.
In 2018, he became the Managing director of Sakhalin Oil & Gas Development Co., Ltd.
He is a graduate of the Faculty of Engineering, University of Tokyo (1979) and obtained an MBA from the Yale University School of Management in 1993.
Current positions:
– INPEX CORPORATION | Special Counselor
– Sakhalin Oil & Gas Development Co., Ltd. | Managing Director

Joined Kansai Electric Power Co.,Inc. in 1994. After 3 years’ experience as an engineer at thermal power plant, engaged in various tasks mainly related to corporate planning, such as capital investment plans and business strategies to adapt to changing circumstances of energy sector in Japan. From 2010 to 2013, seconded to The Federation of Electric Utility Companies, involved in negotiation with government agencies as a representative and coordinated opinions among utility companies, regarding Japanese energy policy, renewable energy policy (Feed-in-Tariff), and deregulation of energy sector.
After resignation from Kansai Electric in 2016, experienced investment fund related businesses, and established IGALABO Inc. in 2018. Since then, have provided advisory services to companies mainly in energy sector.
Bachelor of Engineering from University of Tokyo (1994)
Master of Business Administration (MBA) from University of Michigan, Ross School of Business (2002)
・President of IGALABO Inc.