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About us


ISFnet is one of Japan’s leading IT services and IT staff supply companies. Our clients choose us because of our commitment to provide high-quality IT support and skilled personnel. With many offices throughout Japan, and subsidiaries in China, South Korea, Singapore, India and the U.S. ISFnet can meet all your needs domestically and across the world.

If you are looking to outsource your IT functions, have a project that you need handling, or want skilled reliable staff for your IT division, contact us and talk with one of our service consultants.

We believe that there is no trade-off between corporate responsibility, profit and success. Employing good business practices is fundamental to providing our customers with the best and most creative solutions.

  • Tailored IT Business Solution

  • 24/7 Nationwide Support

  • Network System Setup
    & Management

  • Bilingual IT Engineers

  • Large Project Management

  • Nationwide Sales Support

Corporate Profile

ISFnet Inc Established: January 12th, 2000
Address Oak Akasaka Building 3F 7-1-16, Akasaka, Minato Ward, Tokyo, Japan 107-0052
TEL: +81-3-5786-2301 FAX: +81-3-5786-2309
President Yukiyoshi Watanabe
Directors Seiki Motomura, Yoshiharu Kojima, Kouhei Wakamoto
No. of Employees 1,798, 2,546 across ISFnet group(1st January, 2017)
Employees holding IT Qualifications CCNA, MSCA, LPIC, Oracle Gold Master, Network Specaliasts
Group Subsidiaries ISFnet Harmony Ltd,
ISFnet Care Ltd,
ISFnet Joy,
ISFnet Global,
China, India, Korea, US,
ISFnet Benefit