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Corporate Profile

Capital 2,125 million yen
Foundation October 1990
Founder Mamoru Nanamura(Honorary Chairman)
Business Overview Corporate management and overall control of group companies through ownership of shares and other forms of equity.
Business Establishment [Headquarters]
Sumitomo Fudosan Shinjuku Grand Tower 30th Floor,8-17-1 Nishishinjuku Shinjuku-ku,Tokyo 160-6130
Tel:+81-3-6863-5623 (Representative)
Koki Sato
Representative Director
Isamu Ueno
Representative Director
Tadahiro Matsuda
Etsuko Okajima
Outside Director
Yusuke Asakura
Outside Director
Yoshiki Ishikawa
Outside Director
Muneyoshi Nomura
Internal Auditor
Nobuo Kojima
Internal Auditor
Mamoru Furushima
Outside Auditor
Takeshi Okuyama
Outside Auditor
No.of Employees Septeni Group As of March 2020
1,129 permanent staff1,354 employees
Annual Fiscal Term Last day of September
Main Financing Banks MUFG Bank, Ltd. (Shinjuku Chuo Branch)
Mizuho Bank (Shinjuku Branch)
Mitsui Sumitomo Bank (Shinjuku West Gate Branch)
Industry Associations Association of New Economy
Council of Wellness Management
Accounting Auditor Deloitte Touche Tohmatsu LLC
Listing Market Tokyo Stock Exchange JASDAQ


  • Sumitomo Fudosan Shinjuku Grand Tower 30th Floor, 8-17-1 Nishishinjuku Shinjuku-ku,Tokyo 160-6130
    (Corporate reception is on 28th floor, Event hall is on 27th floor. )
  • TEL:+81-3-6863-5623(Representative) FAX:+81-3-6863-5624
  • 3 minutes walk from Tokyo Metro Marunouchi Line's Nishi Shinjuku Station Exit 1
    6 minutes walk from Toei Oedo Line's Tocho Mae Station Exit E5