Marathon Capital Partners Form Strategic Partnership to Support Local Employment with Shiraishi Design Group

Strategic Partnership Announcement

Marathon Capital Partners, headquartered in Chiyoda, Tokyo, has announced a strategic partnership with Shiraishi Design Corporation and Sasuke IT Service, both based in Ehime Prefecture. The partnership, established through a special purpose company financed by Iyogin Capital, will focus on architectural design and employment continuation support services. This collaboration aims to bolster local employment and drive further growth in the region.

Background of the Companies

Marathon Capital Partners

Founded in April 2021, Marathon Capital Partners specializes in managing private equity funds. Their expertise lies in developing and managing investment strategies that support local businesses and foster growth within their sectors.

Shiraishi Design Corporation

Established in April 1997, Shiraishi Design has carved out a niche in the market by focusing on structural drafting and architectural design. Over the past three decades, they have serviced various sectors, particularly providing fabrication drawings for certified steel manufacturing plants. Their innovative approach includes utilizing AI for annotation and diversifying their services to include information technology sectors.

Sasuke IT Service

Founded in March 2015, Sasuke IT Service operates a Type A employment continuation support office and is also an integral part of the Sasuke Group. This organization is committed to providing employment support primarily focusing on individuals with disabilities. As of October 2025, the Sasuke Group employs over 637 individuals across 13 sites mainly in the Chugoku and Shikoku regions, successfully merging high-quality technical services with employment aids for disabled workers.

The Role of Iyogin Capital

Iyogin Capital, established in August 1985, specializes in venture investment and the management of growth support funds. Leveraging the strong networks of the Iyo Bank Group, Iyogin Capital has a long history of nurturing regional companies and supports sustainable business growth in Ehime and surrounding areas through its funds.

The Significance of the Partnership

Marathon Capital recognizes the stability and community-centric approach that the Sasuke Group has developed over the years. Through this partnership, they aim to enhance service areas, deepen client relationships, and strengthen organizational capacity and recruitment efforts to pave the way for further growth of the Sasuke Group's operations.

This strategic alliance not only marks a significant step for all involved entities but also serves as a vital contribution to the local economy, ensuring the sustainable employment of individuals in the region. By combining expertise from the financial and architectural sectors, they are set to drive positive changes within the community over the coming years.

For more details on each company and their initiatives, visit the following URLs: