About Us

Company name

Saison Information Systems Co., Ltd.


September 1, 1970

Paid-up capital

1,367,687,500 Yen

Annual sales

23,952 million Yen (as of March 31, 2023, consolidated)


715 (as of March 31, 2023 consolidated)

Stock listing

The Standard Market on TSE

Business fields

Software package business
System development and operations business

List of offices

19F, Akasaka Intercity AIR, 1-8-1 Akasaka, Minato-ku, Tokyo 107-0052, Japan
Phone: +81 3 6370 2000 (Central Reception)

West Japan Office
4F, Higobashi MID Bldg., 1-5-16 Edobori, Nishi-Ku, Osaka-Shi, Osaka 550-0002, Japan
Phone: +81 6 6479 1151

Central Japan Office
Dai Nagoya Building, 3 Chome-28-12 Meieki, Nakamura Ward, Nagoya, Aichi 450-6490, Japan
Phone: +81 52 856 5541 (Central Reception)

List of group companies

Chairman:Yoshihisa Yamamoto
Chief Executive Officer (CEO):Yasushi Kure

CEO:Masahiro Maruyama

HULFT Pte. Ltd.
CEO:Takeshi Mitsunaga


ISO/IEC27001: 2013 Certification Acquisition StatusISMS certification

Saison Information Systems has obtained ISO/IEC 27001: 2013 certification, which is an international standard for information security management systems.

Registration Number/Registration Date

JMAQA-S030 (March 14, 2003)

Range of Inspection for Registration
  1. System development, system maintenance, support based on customer requirements, and combining all three providing system design and services
  2. Sales, design and development of package software, providing incidental services (technical support, training, implementation support, etc.)
  3. Design, development and implementation of XaaS.
  4. Providing center management services
Applicable Standards

JISQ27001:2014 (ISO/IEC27001:2013)

Inspected Organization

Japan Management Association Quality Assurance Registration Center

Registration Expiration Date

March 13, 2024