Spiral Capital is an independent venture capital firm based in Tokyo, Japan, that invests in startups transforming society with technology. The firm manages General Funds and CVC Funds, focusing on sectors including AI, DeepTech, FinTech, Healthcare, and Smart Infrastructure (including ClimateTech).
Deal activity increased 50% year-over-year (3 deals in the last 12 months). Average disclosed round size is $284.1M (across 20 rounds with reported amounts).
Portfolio
36
Fund Size
—
Top Stage
Seed
Last 12 Mo
4
Team
HIROSHI OKA
General Partner
KAZUHIRO KAMADA
General Partner
TAKASHI CHIBA
General Partner
TOMOKAZU OKUNO
General Partner, CEO
SHINICHIRO MAEDA
Managing Director / Corporate & Compliance Officer
MIZUKI YOSHIDA
Partner
AIKO KIKUCHI
Senior Director
AKIKO TAKEYA
Director
MACHIKO KAWANO
Director
RINA SHIMAZAKI
Director
RYOHEI YAMAMORI
Director
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
Portfolio
| Company | Round | Amount | Date |
|---|---|---|---|
 MOZU | Series B | — | Jul 2026 |
 Zevero | Series A | $7M | Mar 2026 |
 MiRESSO | Series A | — | Feb 2026 |
 Miresso Co Ltd | Series A | — | Jan 2026 |
 Tailor | Series A | $22M | Jun 2025 |
 Bloomo | Series A | — | Jan 2025 |
| MiRESSO | Series A | $1.8B | Jan 2025 |
| Miresso Co Ltd | Series A | $1.8B | Jan 2025 |
 HITOTSU | Bridge | — | Jan 2025 |
| GGITAI USA Inc. | Series B | $15.5M | Nov 2024 |
| Zevero | Seed | — | Sep 2024 |
 Dioseve | Unknown | $7M | Jan 2024 |
 Luup, Inc. | Series D | $30M | Apr 2023 |
 Yellow Metal | Unknown | $3M | Jan 2023 |
 CarbonEthics | Pre-Seed | $220K | Jan 2023 |
 Space Data | Seed | $1.4B | Aug 2022 |
 NirogStreet | Series B | $12M | Jan 2022 |
| Yellow Metal | Seed | $3M | Jan 2022 |
 enpay | Series B | — | Apr 2021 |
| Bloomo | Seed | — | — |
 Loglass | Series B | — | — |
| Loglass | Seed | — | — |
 Adacotech | Series B | — | — |
 inflow | Seed | $2M | — |
 carbase | Unknown | — | — |
Top Co-Investors
Last updated: 8 September 2026