Marubeni IT Solutions and Home Party Join Japan Customer Success Association

The Japan Customer Success Association (JCSA), headquartered in Chuo City, Tokyo, is pleased to announce the induction of two new regular members: Marubeni IT Solutions and Home Party. This membership aims to advance customer success practices across Japan, fostering sustainable growth for businesses and their clients.

Vision and Objectives of JCSA

The JCSA's mission is to create a society where both customers and businesses can thrive together through customer success initiatives. The organization focuses on promoting the development of customer success in Japan by publishing annual reports like the "Customer Success White Paper," hosting large-scale conferences such as the "Japan CS Summit," and establishing standardized guidelines for Customer Success Managers (CSMs). Additionally, JCSA produces the podcast series "CS INITIATORS" to share insights and best practices from industry leaders.

Insights from New Members

Marubeni IT Solutions
Yohei Sumita, from the Customer Success Division, expressed his honor to join JCSA. He emphasized their commitment to providing personalized support to clients, ensuring successful implementation and maximization of various solutions, including Box. Their dedication to customer success has been recognized in the past with the Best Customer Success Award from Box Japan. Sumita aims to deepen collaboration with fellow members to expand the long-term value of cloud solutions in Japanese businesses, stressing the importance of continuous customer engagement beyond initial setup.

Home Party
Jun Tawara, the CEO of Home Party, shared his excitement about joining the association. His company focuses on "Attack Customer Success," highlighting their proactive approach to customer success. They serve mainly SaaS clients by undertaking BPO customer success tasks, focusing on continuous proposals and strategic actions rather than a passive approach. Through JCSA, Tawara hopes to align their efforts with current market demands and contribute to the growth of the customer success sector in Japan.

Membership Opportunities

The Japan Customer Success Association is actively recruiting new regular members. Interested parties can reach out through the admission form available on their website. Please note that membership applications are subject to review.

Membership Application Form

Current Regular Members (as of January 2026)

- Marubeni IT Solutions (New Member)
- Home Party (New Member)
- Funai Soken Holdings
- Unirita Corporation
- Right Touch, Inc.
- Scene Live, Inc.
- GigWorks AdValu, Inc.
- STORES Corporation
- Phone Appli, Inc.
- Medix, Inc.
- SMAS (Sumitomo Mitsui Auto Service)
- Sales Robotics, Inc.
- MNTSQ, Inc.
- Atomica, Inc.
- String Isle LLC
- NEC Corporation
- SmartCamp, Inc.
- Adition, Inc.
- Japan Business Systems, Inc.
- Works Human Intelligence, Inc.
- SmartHR, Inc.
- PKSHA Technology, Inc.
- Ricoh IT Solutions, Inc.
- Gainsight, Inc.
- kubell, inc.
- Cybozu, Inc.
- Scalebase, Inc.
- Obic Business Consultant, Inc.
- WingArc 1st, Inc.
- Sansan, Inc.
- BizReach, Inc.
- Money Forward, Inc.
- Box Japan, Inc.
- Raksul Inc.

About Japan Customer Success Association

Established to promote customer success as a means for businesses and clients to thrive together, the JCSA works on organizing customer success within organizations, sharing knowledge, and enhancing Japan's industrial competitiveness. The association focuses on advancing customer success through activities such as promoting industry usage, human resource development, and awareness campaigns.

Organization Overview:

- Name: Japan Customer Success Association
- Established: November 2024
- Location: Ginza, Chuo City, Tokyo
- Activities: Implementation support for customer success, consulting, seminars, publications, and research reports.

For inquiries, please contact: [email protected]

Media Inquiries:
Japan Customer Success Association PR Representatives: Nakagama, Goto, Wakiya
[email protected]