# Hiroshi Oishi

> Hiroshi Oishi is a startup investor at Mizuho Capital. See 0 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Mizuho Capital](https://shizune.co/investors/profile/mizuho-capital)
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/hiroshi-oishi-078a77a4

Hiroshi Oishi is a startup investor at Mizuho Capital. Hiroshi Oishi - Director @ Mizuho Capital

## About Mizuho Capital

VC Fund · Tokyo, Japan

Mizuho is the venture capital firm affiliated to Mizuho Bank, the second-largest Japanese bank in terms of assets. The firm has headquarters in Tokyo.The firm has ¥49.6 billion JPY under management, focusing on information technology and biotechnology investments. Over 600 Mizuho companies have gone public. According to Nikkei, Mizuho is thefifth-largest venture capital firm in Japan.Mizuho Capital was formed in 2002 by the merger of Fujigin Capital, Tokyo Venture Capital and IBJ Investment. Three firms were subsidiaries of Fuji Bank, Dai-Ichi Kangyo Bank and the Industrial Bank of Japan respectively.

5 contacts available at Mizuho Capital.

| Name | Title | Profile |
| --- | --- | --- |
| Atsushi Sugao | Auditor | https://shizune.co/investors/profile/atsushi-sugao |
| Hajime Saito | President; President | https://shizune.co/investors/profile/hajime-saito |
| Hiroshi Oishi | Director | https://shizune.co/investors/profile/hiroshi-oishi |
| Hiroshi Yamamoto | Managing Director | https://shizune.co/investors/profile/hiroshi-yamamoto |
| Mitsumasa Matsumoto | General Manager, Investment Department | https://shizune.co/investors/profile/mitsumasa-matsumoto |

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