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 $136.4M (across 49 rounds with reported amounts).
Portfolio
106
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
132 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 elleThermo | Growth | — | Aug 2026 |
| OOptQC Corp. | Series A | — | Aug 2026 |
| BBestat | Series A | — | Jul 2026 |
 MOZU | Series B | — | Jul 2026 |
 TriOrb | Series B | — | Jun 2026 |
 Magic Shields | Series B | — | Apr 2026 |
| Magic Shields | Growth | — | Apr 2026 |
 Space BD | Series C | — | Jan 2026 |
 Solafune | 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 |
 Aeterlink, Inc. | Unknown | — | Feb 2025 |
 Neusignal Therapeutics | Series A | — | Jan 2025 |
 Gaudi Clinical | Growth | — | Jan 2025 |
| PPLAINER | Series A | — | Jan 2025 |
 Avantus | Bridge | $500M | Jan 2025 |
 Turing | Unknown | $111M | Jan 2025 |
 Lecto | Series A | — | Nov 2024 |
 CoreWeave | Growth | $650M | Oct 2024 |
 Zap Energy | Series D | $130M | Oct 2024 |
| TriOrb | Series B | — | Sep 2024 |
 PartnerSuccess | Series A | — | Sep 2024 |
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Top Co-Investors
SMBC Venture Capital59 shared
JAFCO Group Co., Ltd.26 shared
Mitsubishi UFJ Financial Group, Inc.25 shared
JIC Venture Growth Investments17 shared
SBI Investment14 shared
CyberAgent Capital13 shared
ITOCHU Technology Ventures, Inc.13 shared
Global Brain Corporation13 shared
SPARX Group Co., Ltd.12 shared
DNX Ventures11 shared
GREE Ventures10 shared
Delight Ventures9 shared
NTT DOCOMO Ventures6 shared
STRIVE6 shared
Coral Capital6 shared
Dentsu Ventures6 shared
Development Bank of Japan Inc.6 shared
JAPAN POST CAPITAL Co., Ltd.5 shared
Spiral Capital5 shared
Last updated: 20 October 2026