# RKB Mainichi Broadcasting

> RKB Mainichi Broadcasting is a VC fund in Fukuoka backing AgTech, Content and Fitness. See 4 investments, check sizes, portfolio. Updated Aug 2026.

- Type: VC Fund
- Location: Fukuoka, Japan
- Total investments: 4
- Last investment: Nov 2024
- Lead investor: 0%
- Last updated: Aug 2026
- X (Twitter): https://twitter.com/RKB_TV
- Website: https://rkb.jp/

RKB Mainichi Broadcasting is a commercial broadcasting services provider.

## Round sizes

| Stage | Round size |
| --- | --- |
| Series A | $1.2M–$7.3M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| AgTech | 1 | 25% |
| Content | 1 | 25% |
| Fitness | 1 | 25% |
| Wellness | 1 | 25% |
| Marketing | 1 | 25% |

12 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 1 | 25% |
| Series B | 1 | 25% |
| Corporate Round | 1 | 25% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| ACCEL Stars | ACCEL Stars is a fitness and wellness firm that offers sleep diagnosis and examinations like sleep health, hygiene and medical devices. | $7.3M | Series A | Nov 29, 2024 |  |
| Desamis | Desamis is a major consumer electronics manufacturer who has been engaged in the agribusiness. | $4.2M | Series B | Mar 18, 2024 |  |
| Peco Free | Peco Free is a school meal pre-order service that is selected using a smartphone. | $1.2M | Series A | Mar 08, 2024 |  |
| FIREBUG | FIREBUG enables comedians, actresses, models, artists, managers, and creators to develop their skills. They arrange production plans for numerous talents and create IP and advertising items based on the social networking sites of the talents. Additionally, they offer marketing solutions built around a range of talent-focused content. They offerbasic marketing assistance and advertising for businesses. | $20.4M | Corporate Round | Jul 27, 2017 |  |

4 of 4 investments shown.

## Co-investors
- [Avex](https://shizune.co/investors/profile/avex) — VC Fund, 1 deal together
- [Azusa Institute of Research](https://shizune.co/investors/profile/azusa-institute-of-research) — VC Fund, 1 deal together
- [Chugin Capital Partner](https://shizune.co/investors/profile/chugin-capital-partner) — VC Fund, 1 deal together
- [ENEOS Innovation Partners](https://shizune.co/investors/profile/eneos-innovation-partners) — VC Fund, 1 deal together
- [FFG Venture Business Partners](https://shizune.co/investors/profile/ffg-venture-business-partners) — VC Fund, 1 deal together
- [Miraidoa](https://shizune.co/investors/profile/future-venture-capital) — VC Fund, 1 deal together

## Similar investors

### Similar industry
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
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### Similar stage
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### Similar country
- [Mitsubishi UFJ Capital](https://shizune.co/investors/profile/mitsubishi-ufj-capital) — VC Fund
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- [Fitness Investors in Japan](https://shizune.co/investors/fitness-investors-japan)

## FAQ

### What does RKB Mainichi Broadcasting invest in?

RKB Mainichi Broadcasting invests primarily in AgTech, Content and Fitness startups, most often at Series A and Series B 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.

### What is RKB Mainichi Broadcasting's check size?

RKB Mainichi Broadcasting typically joins rounds of $1.2M–$7.3M 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 RKB Mainichi Broadcasting participates in.

### When did RKB Mainichi Broadcasting last invest?

The most recent investment recorded for RKB Mainichi Broadcasting closed in Nov 2024. 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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