WM & Sanno Tech
2026-03-02 06:01:48

WM Partners and Sanno Tech Forge Strategic Partnership for Growth

WM Partners, an independent investment firm recognized for its unique approach in the private equity sector, has recently entered into a strategic partnership with Sanno Tech Co., Ltd., situated in Wako City, Saitama Prefecture. This collaboration aims to bolster Sanno Tech's growth trajectory by leveraging their technical expertise and industry insights alongside WM Partners' investment acumen.

Founded in 1981 and led by President Isamu Yoshioka, Sanno Tech excels in providing comprehensive services across numerous facets of mobility. Their offerings range from development design, computer-aided engineering (CAE) analysis, and 3D modeling to patent research and technical documentation production. This diverse skill set has positioned Sanno Tech as an essential partner in supporting advancements in the mobility sector, meeting the growing and evolving R&D demands effectively.

The decision to engage in capital business collaboration stemmed from a mutual recognition of the need for strategic partnerships to achieve further growth in a competitive landscape. By combining Sanno Tech's profound industry knowledge and technological capabilities with WM Partners' resources, both entities aim to enhance management structures, expedite talent acquisition, and address core operational challenges.

The mobility industry is set for significant investments in research and development, presenting ample opportunities for market expansion. WM Partners is committed to collaborating effectively with Sanno Tech’s leadership and staff, ensuring sustained support for their progression and success as they navigate the complexities of the mobility landscape.

Overview of Sanno Tech Co., Ltd.


  • - Company Name: Sanno Tech Co., Ltd.
  • - Headquarters: 2-3-7 Chuo, Wako City, Saitama Prefecture
  • - CEO: Isamu Yoshioka
  • - Established: September 1981
  • - Business Areas: Development design, CAE analysis, 3D modeling, development support, patent research and analysis, editing and production of technical documents, information systems, translation and interpretation, staffing services.
  • - Website: sannotec.co.jp

WM Partners, established in July 2013, represents a team of seasoned investment professionals with a wealth of experience across varied business backgrounds. Unlike typical venture capital or acquisition-focused buyout funds, they maintain a distinct investment strategy tailored for growth-minded management teams, providing both capital and comprehensive shareholder policies.

Their investment approach goes beyond mere funding. WM Partners also focuses on resolving issues related to business succession, facilitating corporate reorganization, and rectifying capital structures. They aim to serve as equity partners for middle and small-sized enterprises, supporting their ongoing growth.

WM Partners Overview


  • - Established: July 2013
  • - Key Executives: Masayoshi Matsumoto, Yasuo Tokunaga
  • - Capital: 30 million yen
  • - Shareholders: Partners, Development Bank of Japan
  • - Headquarters: 4th Floor, Kagimi Koji-machi Building, 2-3 Koji-machi, Chiyoda-ku, Tokyo
  • - Business Areas: Investment in unlisted stocks, management of private equity funds
  • - Funds Operated:
- WM Growth No. 3 Investment Limited Partnership (2014 - present, total investment 6.2 billion yen)
- WM Growth No. 4 Investment Limited Partnership (2017 - present, total investment 10.6 billion yen)
- WM Growth No. 5 Investment Limited Partnership (2022 - present, total investment 12.1 billion yen)


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Topics Business Technology)

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