
Global Brain is an independent venture capital firm founded in 1998 and headquartered in Tokyo, Japan, with offices across the US, UK, Germany, China, South Korea, India, and Singapore. The firm invests from seed to growth stages across sectors including AI, DeepTech, fintech, healthcare, robotics, and climate tech, and also manages corporate venture capital (CVC) funds and co-investment projects with large corporate partners.
Deal activity increased 82% year-over-year (20 deals in the last 12 months). Average disclosed round size is $28.4M (across 155 rounds with reported amounts).
Portfolio
192
Fund Size
—
Top Stage
Series A
Last 12 Mo
20
Team
Akeo Ito
Platform Group Managing Partner
Ayu Shinoyama
Corporate Management Group Managing Partner
Harue Hayashi
Fund Management Group Managing Partner
Masamune Shin
Platform Group Managing Partner
Noriko Usui
Fund Management Group Managing Partner
Shohei Hirota
Platform Group Managing Partner
Takahiro Mizuno
Corporate Management Group Managing Partner
Daisuke Nishida
Investment Group General Partner
Jiro Kumakura
Investment Group General Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
Portfolio
| Company | Round | Amount | Date |
|---|---|---|---|
| NNoxtua | Series C | — | Sep 2026 |
| Series A | — | Sep 2026 | |
| OOptQC Corp. | Unknown | — | Aug 2026 |
| Series A | — | Jun 2026 | |
| Series C | — | Jun 2026 | |
| Series A | $13M | May 2026 | |
| Unknown | — | Mar 2026 | |
| Unknown | — | Feb 2026 | |
| Unknown | — | Feb 2026 | |
| Seed | $26M | Feb 2026 | |
| Unknown | — | Feb 2026 | |
| Unknown | — | Feb 2026 | |
| Unknown | — | Feb 2026 | |
| Seed | $3.3M | Jan 2026 | |
| Unknown | — | Jan 2026 | |
| Unknown | — | Jan 2026 | |
| Unknown | — | Jan 2026 | |
| Unknown | — | Jan 2026 | |
| Growth | $5.2M | Jan 2026 | |
| Series E | $10M | Jan 2026 | |
| Series C | — | Jan 2026 | |
| Series A | $22M | Nov 2025 | |
| Series A | — | Nov 2025 | |
| Unknown | — | Nov 2025 | |
| Series A | — | Oct 2025 |
Top Co-Investors
Last updated: 7 October 2026