Corporate Profile

Company Name



March 2005 (changed company name in March 2018 )

Fiscal Closing



132million yen


President & CEO Yoshikazu Sasaki


9F MG Ichigaya Building, 1-9 Gobancho, Chiyoda-ku, Tokyo, Japan

Number of Employees

100 ※As of April, 2020: Including full-time and part-time.

Main Business

IT-GRC/Security Related Solutions


worker dispatching undertaking (派13-311240)

fee-charging employment placement business (13ーユー301890)


Japan CISO Association

Japan Card Data Security Consortium (Steering Committee Member)



PCI DSS Qualified Security Assessor

Trading Performance

  • EMC Japan K.K.
  • ITOCHU Techno-Solutions Corporation
  • NRI SecureTechnologies, Ltd.
  • Clementec Co., LTD.
  • DOCOMO Systems,Inc.
  • NS Solutions Corporation.
  • Layers Consulting Co., Ltd.



Board of Directors

Yoshikazu Sasaki
President and CEO
(Chief Executive Officer)

After graduating from the University of Southern California, Department of Computer Science, Yoshi joined Hewlett-Packard Japan and engaged in security consulting. On March 2005, he founded Frontier X Frontier Co., Ltd. (former NANAROQ → current GRCS) and assumed the position of President and CEO.

Takuya Tsukamoto
Director and CTO
(Chief Technology Officer)

After graduating from the University of Southern California, Department of Computer Science, Takuya joined NEC Soft (now NEC Solution Innovator) and engaged in mobile phone development. After participating in GRCS in 2009, he was in charge of consulting and product development for GRC and security business mainly in the finance, communications and manufacturing industries. Director in charge of Technology.

Ikue Tanaka
Director and CCO
(Chief Corporate Officer)

After graduating from Seikei University, she joined a domestic independent consulting firm. After that, she participated in the founding of AGASTA Co., Ltd. and went public. In May 2014, she became a director of GRCS. In charge of Administration Division.

Keiichi Kubo
Outside Director

Graduated from the Faculty of Economics, Osaka University and joined Tohmatsu Audit firm.
After gaining experience in supporting stock listings, he started a risk consulting business and expanded the organization from 15 to 450 people. Served as a board member of Deloitte Tohmatsu Risk Service Co., Ltd., he also participated in government committees such as the Advisory Committee for Natural Resources and Energy and the Nuclear Facility Safety Information Declaration Investigation Committee. Auditor.


Koshi Oizumi
Corporate Auditor

After graduating from the Department of Economics at the University of Washington, joined Saitama Bank (now Resona Bank), mainly engaged in international operations. Then he served as full-time auditors such as Levi Strauss Japan and Symbio Pharmaceuticals and assumed a full time auditor at GRCS in April 2018.

Yasuo Shimada

Graduated from Keio University, University of Pennsylvania Wharton School (MBA), he was in charge of accounting audit and IPO support at Tohmatsu Audit firm (currently Deloitte Touche Tohmatsu LLC), and later engaged in investment banking and private equity investments at JPMorgan Securities, Deutsche Securities and Phoenix Capital. Certified Public Accountant.

Shino Asayama

Graduated from Hitotsubashi University School of Law and University of Chicago Law School (LL.M.). Registered as a lawyer in Japan and New York State. White & Case law firm lawyer.
In addition to domestic and cross-border M&A, she specializes in general corporate legal matters, including antitrust laws, data protection and employment. For two years from February 2009, she joined the Ministry of Economy, Trade and Industry's Industrial Policy Bureau Competition Environment Maintenance Office as a secondee government official for a period of time and engaged in antitrust law policies such as competition law compliance and business combination regulations.

Executive Officers

Taku Tokunaga
Executive Officer and CSO
(Chief Strategic Officer)

After graduating from Osaka University Graduate School of Engineering, he worked as a security consultant at Hewlett-Packard Japan. Contributed to the top market share by consulting on domestically developed security products, planning products, and formulating strategies. After that, he joined GRCS in 2016 and assumed responsibility for product and solution planning and development.

Kentaro Hirano
Executive Officer and CBO
(Chief Business Officer)

Graduated from Waseda University, Faculty of Science and Engineering. Previously worked as a security consultant, PM, pre-sales and global service sales at several foreign computer vendors. Most recently, at the Japan office of Secureworks Inc., he led the rapid growth from the beginning as a sales representative. From March 2018, he became the head of the GRCS Sales Department.

Atsushi Mochizuki
Operating officer

Joined DEC Japan as a new graduate and was responsible for NW software product development. Then, he worked as a security consultant in pre-sales, system development, and PM as a security consultant. Previously, he was the head of the Security Division at Hewlett-Packard Japan, where he oversaw the security business pre-sales and service departments.
Participated in GRCS in May 2018.

Yohei Kawajiri
Head of Corporate Planning Office and CFO
(Chief Financial Officer)

After graduating from Osaka University Graduate School of Engineering, joined Nomura Securities Investment Banking. He engaged in IPO of unlisted companies and M&A of PE funds. After that, he worked as General Manager and CFO of Media Management Company and joined the GRCS in December 2017.

General Counsel

Yoshihiro Takatori

Graduated from Harvard Law School (LL.M.). Registered as a lawyer in Japan and New York State. British Arbitrator Association (CIArb.) Given Senior Arbitrator (FCIArb.). Managing Director of Japan Arbitrators Association (JAA), Co-representative of British Arbitrators Association Japan Chapter. In addition to a representative role of the Orick Tokyo law firm litigation group, he is also responsible for the global Japan practices of Orick.
Mainly handles international lawsuits and arbitrations such as civil, commercial, intellectual property rights, product liability, antitrust laws, etc., which cover multiple jurisdictions, FCPA, UKBA compliance cases, labor law related disputes including whistleblowing, etc. This year, by the Financial Times, he was selected as the only Japanese lawyer among the top 10 lawyers in Asia Pacific (Innovative Lawyers).

Note: General Counsel is not responsible for quality checks and content assurance of our products or systems.


9F MG Ichigaya Building,
1-9 Gobancho, Chiyoda-ku,
Tokyo, Japan

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