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Company Profile
Company Name | Okasan Information Systems Co., Ltd. |
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Address | 1-22-16 Asakusabashi, Taito-ku, Tokyo 111-0053 JAPAN |
Phone Number | +81-3-6385-8300 (main) |
Date of Business Commencement | July 1, 1980 |
President | TONO Hideki |
Business Details | Information Process Services Business |
Capital | 100,000,000 Yen |
URL | https://www.ois-okasan.co.jp/ |
Message from Okasan Information Systems Co., Ltd.

Okasan Information Systems Co., Ltd. started its business in 1980 as a company with the primary mission of overseeing systems development for the Okasan Securities Group. As an organization of securities systems professionals, it supports securities businesses through systems development and operations for securities firms within and outside the Group, including Okasan Securities.
The company's activities transcend traditional systems. It offers front-end systems for online securities trading and is currently moving forward with an eye on securities systems that will account for future needs. These efforts will help propel the Okasan Securities Group toward rapid and continuing growth in the world of financial IT, an industry sector that continues to expand, as evidenced by the growth of FinTech technologies, at an accelerating pace.
Group Companies
- Okasan Securities Co., Ltd.
- Okasan Niigata Securities Co., Ltd.
- Sanen Securities Co., Ltd.
- Securities Japan, Inc.
- Sanko Securities Wealth Management Co., Ltd.
- Sanko Securities Co., Ltd.
- Okasan International(Asia) Limited
- Okasan Capital Partners Co., Ltd.
- Okasan Business & Technology Co., Ltd.
- Okasan Kogyo Co., Ltd.