About us

Company Profile

Company Name
Nakamoto & Associates
Established
February 1998 (Founded in 1993)
Capital
100,000,000 yen
Shareholder Structure
Marubeni I-DIGIO Holdings Co.,Ltd.
Address
Head Office
 Iidabashi First Tower, 2-6-1,
Koraku, Bunkyo-ku, Tokyo
 112-0004 Japan
TEL
+81 3-4512-3710
Qualified Invoice Issuer Registration Number
T6010001030857
Qualifications and Awards
  • 2025 Oracle Partner Award-Fusion Apps Breakthrough Award
  • 2021 ISO/IEC27001 Certified (Registration number:JQA-IM1834)
  • 2020 Certificate of appreciation by Oracle Japan (equivalent to Excellence Awards)
  • 2019 Oracle Excellence Awards (ERP Cloud)
  • 2019 Oracle Cloud Excellent Implementer (ERP Cloud)
Board of Directors
President & CEO
Kazuhiko Yoshihara
Non-Executive Director
Yoshihiro Sato
Non-Executive Director
Yoji Ueno
Non-Standing Auditor
Masashi Mikoshiba
Vice President & COO
Tomohisa Kiyose
Exective Officer
Akihiro Konishi
Exective Officer
Rika Meguro
Exective Officer
Mariko Akizuki
Exective Officer
Hidekazu Yokota

Top Message


Amid the rapid advancement of AI and the widespread adoption of cloud and SaaS solutions, the IT industry is undergoing structural transformation at an unprecedented pace. In this environment, many enterprises face the complex challenge of maintaining and modernizing existing systems while simultaneously driving new digital initiatives with limited resources. Nakamoto & Associates is addressing these challenges by leveraging its long‑established expertise and strong track record in Oracle products as its core strength. By further integrating this foundation with the advanced IT technologies and solution capabilities of the Marubeni I-DIGIO Group, as well as the extensive and diverse industry networks of the Marubeni Group, Nakamoto & Associates is enhancing its ability to deliver practical, execution‑driven transformation. Through this unique combination, Nakamoto & Associates aims to clearly position itself as a trusted transformation partner for customers both within and beyond the Marubeni Group, supporting their business evolution with tangible results. We invite you to look forward to the continued growth and advancement of Nakamoto & Associates as part of the ever‑evolving Marubeni I-DIGIO Group.

Kazuhiko Yoshihara
President & CEO


We would like to express our sincere gratitude for your continued support. My name is Tomohisa Kiyose, COO of Nakamoto & Associates. Since our founding in 1993, we have specialized exclusively in Oracle products, delivering ERP implementation services both domestically and to overseas subsidiaries, thereby expanding our business on a global scale. Through the capital participation from Marubeni I-DIGIO, we have further strengthened our corporate structure and operational foundation. This strategic partnership enables us to provide even more stable services and take on larger, more ambitious challenges. With this robust new backing, we are committed to growing stronger and reaching greater heights together with our valued clients and partners, including Oracle Corporation. We look forward to your continued support and partnership as we embark on this exciting new chapter.

Tomohisa Kiyose
Vice President & COO

Corporate Governance

Corporate Governance

Our customers are leading companies in their respective industries, so we take on a great responsibility in building and operating their enterprise systems. Therefore, we are working to strengthen our governance systems based on our conviction that “sound and secure management” is necessary to provide stable high-quality services on a sustainable basis so that our customers can engage in their businesses with peace of mind.

Audits and Reviews

To further strengthen and secure internal controls, we conduct IT security audits, project-specific soundness reviews, and ISO internal and external audits.