# QB Capital

> QB Capital is a VC fund in Fukuoka backing Manufacturing and Medical. See 54 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Fukuoka, Japan
- Total investments: 54
- Last investment: Nov 2025
- Lead investor: 22%
- Fund size: $429M
- Last fund: Sep 2015
- Last updated: Aug 2026
- X (Twitter): https://twitter.com/qb_capital
- Website: http://qbc.co.jp/
- Facebook: https://www.facebook.com/QB%E3%82%AD%E3%83%A3%E3%83%94%E3%82%BF%E3%83%AB%E5%90%88%E5%90%8C%E4%BC%9A%E7%A4%BE-1417385251924512/

QB Capital is a VC fund in Fukuoka focused on Manufacturing and Medical. QB Capital is make equity investments in venture companies.

## Contacts

5 contacts available for QB Capital. Shizune tracks 1 team members at QB Capital. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/qb-capital?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $641k–$35M |
| Series A | $1.3M–$213M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Manufacturing | 12 | 22% |
| Medical | 11 | 20% |
| Biotechnology | 9 | 17% |
| Health Care | 7 | 13% |
| Software | 4 | 7% |

84 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 14 | 26% |
| Funding Round | 13 | 24% |
| Series A | 9 | 17% |
| Series B | 8 | 15% |
| Venture - Series Unknown | 3 | 6% |

7 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Japan | 41 | 76% |
| Singapore | 1 | 2% |
| United States | 1 | 2% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Takeshi Sakamoto | Executive | 0 | https://shizune.co/investors/profile/takeshi-sakamoto |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Surv Biopharma | Surv Biopharma develops a drug discovery platform that facilitates research and development of veterinary drugs and pharmaceutical products. | $14.1M | Series B | Nov 11, 2025 |  |
| Mechano Cross | Mechano Cross is a mechanical company that offers mechanochemical organic synthesis technology for solution reactions. |  | Seed | Sep 05, 2025 |  |
| Mechano Cross | Mechano Cross is a mechanical company that offers mechanochemical organic synthesis technology for solution reactions. |  | Seed | Sep 05, 2025 |  |
| Alumnote | The alumni association management software developed by Alumnote allows schools to manage their alumni associations online. The focus of the company is to undertake loyalty building and marketing for potential donors such as graduates and provides digital tools, and supports the execution of donation acquisition. | $5.2M | Series A | Jul 22, 2025 |  |
| Medteria | Medteria is a medtech startup developing pathology AI. It is the provider of the “Medteria” communication cloud platform for healthcare professionals and medical students. | $640.5K | Seed | Jan 23, 2025 |  |
| Power Diamond Systems | Power Diamond Systems is a research and development firm that focuses on diamond semiconductor devices. | $4.5M | Seed | Nov 21, 2024 |  |
| Japan Carbon Cycle Lab | Japan Carbon Cycle Lab is a technology company that focuses on the research and development of CO2 capture and recycling techniques. | $2.7M | Series A | Oct 08, 2024 |  |
| Rege Nephro | Rege Nephro is a biotech company that specialized in R&D, production and marketing of renal disease therapeutics. | $15.2M | Series B | Oct 07, 2024 |  |
| Zip Infrastructure | Inquiry : https://docs.google.com/forms/d/e/1FAIpQLSfDmxd1TpPP331TY4VoRsvn0yWX3Ca5Jd-bfBiuPwvpD2SKtA/viewform | $2.1M | Series A | Sep 02, 2024 |  |
| Mechano Cross | Mechano Cross is a mechanical company that offers mechanochemical organic synthesis technology for solution reactions. | $1.3M | Seed | Jul 26, 2024 |  |

10 of 54 investments shown.

## Co-investors
- [Mitsubishi UFJ Capital](https://shizune.co/investors/profile/mitsubishi-ufj-capital) — VC Fund, 10 deals together
- [Nippon Venture Capital](https://shizune.co/investors/profile/nippon-venture-capital) — VC Fund, 7 deals together
- [NCB Venture Capital](https://shizune.co/investors/profile/ncb-venture-capital) — VC Fund, 6 deals together
- [UntroD Capital](https://shizune.co/investors/profile/real-tech-holdings) — VC Fund, 6 deals together
- [SMBC Venture Capital](https://shizune.co/investors/profile/smbc-venture-capital) — VC Fund, 5 deals together
- [Angel Bridge](https://shizune.co/investors/profile/angel-bridge) — VC Fund, 4 deals together

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## FAQ

### What does QB Capital invest in?

QB Capital invests primarily in Manufacturing, Medical and Biotechnology startups, most often at Seed and Funding Round stage. Most of the 54 investments tracked by Shizune back companies in Japan. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is QB Capital's check size?

QB Capital typically joins rounds of $641k–$35M at Seed and $1.3M–$213M at Series A. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds QB Capital participates in.

### How do I contact QB Capital?

Public channels for QB Capital include X (Twitter), the website linked on this profile and Facebook. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### Who are the partners at QB Capital?

The team at QB Capital includes Takeshi Sakamoto (Executive). The Team section lists each member with their title, investment count and links.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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