Mizuho Capital is the venture capital arm of Mizuho Bank (part of Mizuho Financial Group), founded in 1983 and headquartered in Tokyo, Japan. It invests across IT, biotech, healthcare, manufacturing, and services from early-stage to growth-stage companies.
Average disclosed round size is $135.0M (across 29 rounds with reported amounts).
Portfolio
81
Fund Size
—
Top Stage
Series A
Last 12 Mo
9
Team
KS
Kiyonori Suzuki
Partner
RK
Rikizo Kurosaki
Partner
YO
Yusuke Omachi
Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
88 investments
| Company | Round | Amount | Date |
|---|---|---|---|
| OOptQC Corp. | Unknown | — | Aug 2026 |
 MOZU | Series B | — | Jul 2026 |
 Triorb | Series B | — | Jun 2026 |
 Magic Shields | Series B | — | Apr 2026 |
| Magic Shields | Growth | — | Apr 2026 |
 Solafune, Inc. | Series A | $30M | Jan 2026 |
 IVRy | Series D | — | Nov 2025 |
 Rendez-vous Inc. | Series A | — | Sep 2025 |
 Rowan Digital Infrastructure | Unknown | $1.2B | Sep 2025 |
 Kakehashi | Series D | — | Jun 2025 |
 Logiless | Series B | — | Mar 2025 |
| AAeterlink, Inc. | Unknown | — | Feb 2025 |
 Neusignal Therapeutics | Series A | — | Jan 2025 |
 Gaudi Clinical | Growth | — | Jan 2025 |
| GGaudi Clinical Co. Ltd. | Growth | — | Jan 2025 |
| PPLAINER | Series A | — | Jan 2025 |
 Avantus | Bridge | $500M | Jan 2025 |
 Lecto | Series A | — | Nov 2024 |
 Coreweave | Growth | $650M | Oct 2024 |
 Zap Energy | Series D | $130M | Oct 2024 |
 Soxai Inc | Unknown | — | Jun 2024 |
 Synspective | Series C | $44M | Jun 2024 |
| Pprecal, Inc. | Unknown | — | Jan 2024 |
 Tabist Inc. | Growth | — | Jul 2023 |
| CCanly | Unknown | — | May 2023 |
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Top Co-Investors
SMBC Venture Capital42 shared
Mitsubishi UFJ Financial Group, Inc.21 shared
JAFCO Group Co., Ltd.20 shared
JIC Venture Growth Investments16 shared
DNX Ventures8 shared
CyberAgent Capital8 shared
Global Brain Corporation8 shared
ITOCHU Technology Ventures, Inc.7 shared
GREE Ventures7 shared
SBI Investment6 shared
SPARX Group Co., Ltd.6 shared
NTT DOCOMO Ventures5 shared
STRIVE5 shared
Coral Capital5 shared
Development Bank of Japan Inc.5 shared
Boost Capital Partners4 shared
Globis Capital Partners4 shared
Dentsu Ventures4 shared
Delight Ventures4 shared
Last updated: 8 September 2026