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Grant Thornton Taiyo Inc.

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Grant Thornton Taiyo Inc., established in 1971, is a firm with over a quarter of a century of experience offering the professional services of domestic and international accounting and tax consulting.  We provide clients with top class service including business consulting to privately held business, international business support, comprehensive support to foreign companies, and business process re-engineering.

  • Capital management
  • Outbound/overseas business support
  • Business succession/international inheritance/family office services
  • Tax services for public interest corporation


Name: Grant Thornton Taiyo Inc.
Founded: January 1971
Managing Partner: Hiroyuki Hamamura
Partners: Yoichi Ishizuka, Yoichiro Sato, Eiji Miura



Tokyo Office (Headquarters)
Aoyama Bldg. 12F
1-2-3 Kitaaoyama, Minato-ku
Tokyo 107-0061 Japan 


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Notice of temporary restriction to building access


Osaka OfficeUmeda Center Building 13F
2-4-12 Nakazaki-Nishi, Kita-ku
Osaka 530-0015 Japan


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