About Us

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Company Profile


Company Name SanseiCorporation
Yokohama HQ:
1-7-1 Sonix171 Build.2F, Kitayamata,
Tsuzuki-ku, Yokohama, Kanagawa, 224-0021, Japan
TEL: 045-594-3851
FAX: 045-590-4875

Sansei Groups

Taiwan Sansei International Co.,Ltd.

6-11F, 318 Songjiang Road, Zhongshan District, Taipei, 10468, Taiwan
Tel:+886-2-2542-9770 Fax:+886-2-2542-9279


69/24 Moo 6 Soi Kingkaew 54, Kingkaew Rd., Rachatewa, Bangplee, Samutprakarn, 10540
Tel:+66-2-175-2314 Fax:+66-2-175-2317

ITE Inc. (Data Center)

3-17-44 Chigasaki Higashi, Tsuzuki-ku, Yokohama, Kanagawa, 224-0033, Japan
Tel:+81-45-309-7237 Fax:+81-45-309-7238

R&D Center

3-1-28, Minamiyamata, Tsuzuki-ku, Yokohama, Kanagawa, 224-0029, Japan


  • Construction industry license
  • Electrical installation notification (general-purpose electric equipment)
  • Advanced medical control equipment sales license
  • Antique business permission
  • ISO9001
  • ISO14001
  • ISO27001

Work content

  • General construction bisiness
  • General facility business
  • Equipment for medical treatments and diagnosis
  • Design and construction of a date center and a server room.
  • Medical and IT facilities total-maintenance bisiness
  • Advanced managed-medical-care apparatus trading business

Company History

1994 Sansei Integrated Facility Co., Ltd. is established in Yokohama.
2000 Due to office extension, it moved to Minami-Yamata, Tsuzuki-ku, Yokohama-city
2003 The company name changed to Sansei Co., Ltd.
2004 Fukuoka office is established in Fukuoka.
2012 Taiwan office is established in Taipei city
2012 Certified ISO27001:2006 (Registration No. JMAQA-S119)
2012 Certified ISO9001:2008 (Registration No. JMAQA-2507)
2013 Kita-Kantou Office (Utsunomiya Show Room and Test Center) established at Tochigi.
2013 Certified ISO14001:2004 (Registration No. JMAQA-E879)
Increased its capital to $86.5million.