# K4 Ventures

> K4 Ventures is a VC fund in Osaka backing Energy, Renewable Energy and Retail. See 26 investments, check sizes, portfolio. Updated Aug 2026.

- Type: VC Fund
- Location: Osaka, Japan
- Total investments: 26
- Last investment: Jul 2026
- Lead investor: 38%
- Last updated: Aug 2026
- Website: http://www.k4v.co.jp/en/

K4 Ventures is a corporate venture capital arm of Kansai Electric Power based in Osaka, Japan. The firm prefers to invest in seed, early, middle, and later-stage companies. The firm focuses on the storage battery, mobility, artificial intelligence, internet of things, big data, robotics, and new technology sectors.K4 Ventures was established inSeptember 1998.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $167k–$37M |
| Series B | $9.6M–$553M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Energy | 6 | 23% |
| Renewable Energy | 4 | 15% |
| Retail | 2 | 8% |
| Medical | 2 | 8% |
| Software | 2 | 8% |

44 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series B | 7 | 27% |
| Seed | 5 | 19% |
| Funding Round | 5 | 19% |
| Series A | 3 | 12% |
| Venture - Series Unknown | 3 | 12% |

6 stages tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| T2 | T2 Co offers services like automatic driving of huge trucks to provide a trunk transportation service. | $30.8M | Series B | Jul 21, 2026 |  |
| Starlight Engine | Starlight Engine develops and commercializes fusion energy power plant technologies. | $37.4M | Seed | Jul 15, 2026 |  |
| ALGO ARTIS | ALGO ARTIS is a software company that offers optimization in plant operations, tanking, ship allocation plan, and logistics. | $9.6M | Series B | Jun 09, 2026 |  |
| Ms.Engineer | Ms.Engineer is an education platform that helps to study coding and get placed in companies for women. | $2.1M | Seed | Oct 06, 2025 |  |
| Enechain | enechain provides liquidity in Japan’s energy market by brokering OTC transactions of energy. | $38M | Series B | Apr 26, 2024 |  |
| Sharing Energy | Sharing Energy is providing energy supply and energy management services. | $25.9M | Series B | Apr 18, 2024 |  |
| Girasol Energy | Girasol Energy is an IoT Platform provides innovative PLC technologies that enable wiser PV Plants. |  | Series B | Mar 22, 2024 |  |
| Aakel Inc. | Aakel Technologies provides optimization services for energy use and mobility operations with the aim of realizing a decarbonized society. | $167.5K | Seed | Mar 06, 2024 |  |
| Kyoto Fusioneering | Kyoto Fusioneering is a research & development, design, and manufacture of parts related to fusion reactors. | $77M | Series C | May 16, 2023 |  |
| ALGO ARTIS | ALGO ARTIS is a software company that offers optimization in plant operations, tanking, ship allocation plan, and logistics. | $4.8M | Series A | Sep 15, 2021 |  |

10 of 26 investments shown.

## Co-investors
- [SMBC Venture Capital](https://shizune.co/investors/profile/smbc-venture-capital) — VC Fund, 5 deals together
- [UTEC - The University of Tokyo Edge Capital Partners](https://shizune.co/investors/profile/utec) — VC Fund, 5 deals together
- [Global Brain Corporation](https://shizune.co/investors/profile/global-brain-corporation) — VC Fund, 4 deals together
- [Mizuho Capital](https://shizune.co/investors/profile/mizuho-capital) — VC Fund, 4 deals together
- [Impact Capital](https://shizune.co/investors/profile/impact-capital-a7f2) — VC Fund, 3 deals together
- [Kansai Electric Power](https://shizune.co/investors/profile/kansai-electric-power) — VC Fund, 3 deals together

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## FAQ

### What does K4 Ventures invest in?

K4 Ventures invests primarily in Energy, Renewable Energy and Retail startups, most often at Series B and Seed stage. Most of the 26 investments tracked by Shizune back companies in Japan. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is K4 Ventures's check size?

K4 Ventures typically joins rounds of $167k–$37M at Seed and $9.6M–$553M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds K4 Ventures participates in.

### When did K4 Ventures last invest?

The most recent investment recorded for K4 Ventures closed in Jul 2026. Shizune tracks 26 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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