Corporate Profile

Company name

Business Associates K.K.


27 November, 1987


100 million yen


First Okada Bldg. 7F,4-3-5 Shiba, Minato-ku,Tokyo 108-0014


Business Associates Singapore Pte.Ltd.
180 Cecil Street #12-02
Singapore 069546

Affiliated company

ORIX Shinagawa Bldg.4F, 2-5-3 Konan, Minato-ku, Tokyo, Japan 108-0075


Provision of business system solutions optimized for our client companies using our own application package which we know best. 

 Implementation support and on-going support services for our clients for their effective and continuous usage of our provided or proposed solutions. 

Business and system consulting by our experienced consultants from the standpoint of the management

Research and development of business application packages using most advanced IT technology.


We have a number of clients who are foreign affiliated companies operating in Japan (Gaishi-kei), who use bilingual function supported by our package system.

We have a number of users of Plaza-i Accounting system, which supports not only bilingual and multi-currency functions but also necessary functions for group companies.

We have many clients who are Japanese midsize firms, and who use "Plaza-i" in full scale as their business management system.

We have in-house consultants and support staff as well as system engineers and programmers. 

We have clients who expand their business overseas and therefore who need multi-currency and bilingual functions in their system.


Hiroshi Sugimoto
Representative Director

Takeshi Saitoh
Senior Managing Director, Certified public accountant, System audit technician, Oracle Certified Professional

Hitoshi Miyagi
Managing Director, Certified public accountant, Licensed tax accountant

Masatoshi Ishikawa
Auditor, Licensed tax accountant

Corporation lawyer

Shinjuku Law Office
Shinjuku Building 4th floor, 
1-8-1 Nishi-shinjuku Shinjuku-ku, Tokyo
Japan 160-0023

Affiliated organizations

The Tokyo Chamber of Commerce and Industry 

GCCIJ(German Chamber of Commerce and Industry in Japan)

JETRO(Japan External Trade Organization) Members 

 Oracle Partner Network