Keiei Sanbou Co., Ltd. and Shiragata Research Institute Co., Ltd. Jointly Commercialize the "Sanbou" Executive Community. Significantly Strengthening the Customer Success (CS) System to Further Pursue "Being Useful to the President"

Keiei Sanbou Co., Ltd. (Headquarters: Shinjuku-ku, Tokyo, Representative Director: Kenji Araya) is pleased to announce that it has jointly commercialized the executive community "Sanbou (Staff)" with Shiragata Research Institute Co., Ltd. (Headquarters: Chuo-ku, Tokyo, Representative Director and President: Tetsuya Ishikawa) and transitioned to a new operational structure.

Background and Purpose of Joint Commercialization

Since its founding, Keiei Sanbou Co., Ltd. has provided practical learning environments (study sessions) and networks to many executives through the executive community "Sanbou," based on the philosophy of "being useful to the president."

Recently, as the business environment changes rapidly, the challenges faced by executives are becoming increasingly complex and diverse. Under these circumstances, we determined that in order to realize our philosophy even more deeply, it is an urgent task to significantly strengthen our Customer Success (CS) system tailored to the situation of each individual member company.

Therefore, we have welcomed Shiragata Research Institute, which has an extensive track record and know-how in consulting for small and medium-sized enterprises, as the optimal partner, and have decided to operate "Sanbou" as a joint business.

"Unchanging Strengths" and "New Value" in the New Structure

In this structural change, we will expand our support system while firmly protecting the elements that have been well-received by our members so far.

1. [Unchanging Strength] High-quality "Planning and Operation of Study Sessions"

   Regarding the planning and operation of the study sessions, which are the heart of "Sanbou," our company (Person in charge: Araya) will continue to take responsibility as before. Utilizing our extensive knowledge, we will continue to strive to maintain and improve quality, and provide valuable content that provides hints for management.

2. [Value Strengthened in the New Structure] Generous "Individual Support (CS)" by Shiragata Research Institute

   Shiragata Research Institute will newly join as the customer support (CS) representative. In addition to lecturing on specific ways to utilize "Sanbou," we will build a generous and polite individual support system, such as consultation on concerns tailored to the management situation of each company. As a result, we will strongly support the implementation of learning into the company's own management, without leaving it as "just learning."

Greetings from the Representatives of Both Companies

We would like to convey the thoughts of both representatives regarding the "joint operation of the business," which was realized precisely because they deeply understand each other's worldviews.

Kenji Araya

Representative Director, Keiei Sanbou Co., Ltd.

We have made the decision to jointly commercialize the "Sanbou" business, which we have carefully nurtured, with Shiragata Research Institute, who understands and loves it the most. I will continue to bear the responsibility of providing a place for you to learn and belong, and the backup system in times of emergency will become significantly stronger with the participation of Shiragata Research Institute. Please look forward to the more evolved "Sanbou" in the future.

Tetsuya Ishikawa

Representative Director and President, Shiragata Research Institute Co., Ltd.

The community business created by Mr. Araya is truly the best. It is the best input place to eliminate the risk of the president "not knowing," and I myself have personally experienced its greatness. We will absolutely protect that wonderful goodness, and at the same time, we will provide our full support from behind when you decide to "put it into practice!"

Future Outlook

Keiei Sanbou Co., Ltd. and Shiragata Research Institute will further evolve the executive community "Sanbou" through this powerful partnership that maximizes the strengths of each. Under our raison d'être of "being useful to the president," we will eliminate the loneliness of executives nationwide and support corporate growth.

About the Executive Community "Sanbou"

"Sanbou" is a membership-based community exclusively for executives, operated by Keiei Sanbou Co., Ltd. Based on the concept of "providing information and energy to executives who take on challenges," it offers a one-of-a-kind place where executives, who tend to feel isolated, can converse openly without being overly formal.

[Main Features]

• Unlimited Participation in Practical Seminars and Study Sessions

  We regularly hold practical study sessions directly linked to your company's management, such as management case studies, know-how to increase sales, and the use of digital tools for operational efficiency.

• Make "True Executive Friends" Beyond Conflicts of Interest

  Unlike general business card exchange events or networking events, you can build a natural network where you can share and empathize with the worries unique to executives. Extracurricular activities such as golf and futsal are also actively held.

• Support Top Decision-Making with Information

  We organize what is necessary for management from a vast amount of information, and strongly back up the "better decision-making" of the president, who is the commander of the company.

Official Website: http://www.ksanbou.co.jp/

Company Profile

Keiei Sanbou Co., Ltd.

• Representative: Representative Director, Kenji Araya

• Location: Adhoc Shinjuku Building 4F, 3-15-11 Shinjuku, Shinjuku-ku, Tokyo

• Established: November 2, 2025

• Business Content: Executive community "Sanbou"
  Business community bar "Sanbou BAR"
  Management consulting

• URL: http://www.ksanbou.co.jp/

Shiragata Research Institute Co., Ltd.

• Representative: Representative Director and President, Tetsuya Ishikawa

• Location: Sanko Building 7F, 4-11 Nihonbashi Kodenmacho, Chuo-ku, Tokyo

• Established: October 2, 2014

• Business Content: Comprehensive management consulting business
  Recruitment consulting business
  - Referral recruiting
  - Social recruiting
  Human resource development consulting business / Training business
  Organization building consulting business
  Work style reform consulting business
  M&A consulting business

• URL: https://www.ssoken.co.jp/