# Keitaro Masui

> Keitaro Masui is a Series A investor at Hirogin Capital Partners backing Automotive and Commercial. See 4 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Hirogin Capital Partners](https://shizune.co/investors/profile/hirogin-capital-partners)
- Location: Hiroshima-shi, Japan
- Total investments: 4
- Last investment: Mar 2025
- Lead investor: 25%
- Last updated: Aug 2026

Keitaro Masui is a Series A investor at Hirogin Capital Partners in Hiroshima-shi focused on Automotive and Commercial. Keitaro Masui is the current CEO of Hirogin Capital Partners.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Automotive | 2 | 50% |
| Commercial | 1 | 25% |
| Real Estate | 1 | 25% |
| Manufacturing | 1 | 25% |
| Carbon Capture | 1 | 25% |

9 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 2 | 50% |
| Series D | 1 | 25% |
| Funding Round | 1 | 25% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Linough | It is a system development company specializing in real estate. Development of real estate management for the system and the application, real estate utilization site operator manufacturing and sale of real estate management for hardware. |  |  | Mar 24, 2025 |  |
| EV Motors Japan | EV Motors Japan provides sales and services for commercial vehicles in the automotive industry. | $651.1K | Series D | Nov 29, 2024 |  |
| ByWill | ByWill creates and distributes environmental value while eventually becoming carbon neutral. | $1.2M | Series A | May 09, 2024 |  |
| KG Motors | KG Motors is an automotive firm that manufactures electric vehicles that can be moved comfortably and safely by one person. | $2.4M | Series A |  |  |

4 of 4 investments shown.

## Co-investors
- [Chugin Capital Partner](https://shizune.co/investors/profile/chugin-capital-partner) — VC Fund, 1 deal together
- [Gifu Shinkin Bank](https://shizune.co/investors/profile/gifu-shinkin-bank) — VC Fund, 1 deal together
- [Higin Capital](https://shizune.co/investors/profile/higegin-capital) — VC Fund, 1 deal together
- [Iyogin Capital](https://shizune.co/investors/profile/iyogin-capital) — VC Fund, 1 deal together
- [Japan Green Investment Corporation for Carbon Neutrality](https://shizune.co/investors/profile/japan-green-investment-corporation-for-carbon-neutrality) — VC Fund, 1 deal together
- [Future Creation Capital](https://shizune.co/investors/profile/mirai-soso-capital) — VC Fund, 1 deal together

## About Hirogin Capital Partners

VC Fund · Hiroshima-shi, Japan

Hirogin Capital Partners provides financial support through equity finance and management support centered on temporary staffing.

1 contacts available at Hirogin Capital Partners.

| Name | Title | Profile |
| --- | --- | --- |
| Keitaro Masui | CEO | https://shizune.co/investors/profile/keitaro-masui |

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund

## FAQ

### What does Keitaro Masui invest in?

Keitaro Masui invests primarily in Automotive, Commercial and Real Estate startups, most often at Series A and Series D stage. Most of the 4 investments tracked by Shizune back companies in Japan. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Keitaro Masui last invest?

The most recent investment recorded for Keitaro Masui closed in Mar 2025. Shizune tracks 4 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### 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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