# Kentaro Sakakibara

> Kentaro Sakakibara is a seed investor at A's Child (Tokyo) backing Finance and Marketing. See 5 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [A's Child](https://shizune.co/investors/profile/as-child)
- Location: Tokyo, Japan
- Total investments: 5
- Last investment: Jul 2025
- Lead investor: 20%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/in/kentarosakakibara
- X (Twitter): http://twitter.com/samurai_ken
- Facebook: https://web.facebook.com/sakakibara.kentaro

Kentaro Sakakibara is a seed investor at A's Child in Tokyo focused on Finance and Marketing. "At early stage of Axive.com, currently EC navi , ｈe tackled started up Sales department, Alliance & Sales strategy and ads product development. He joined Dentsu wonderman next, and performed direct marketing strategy to big communication companies, drink companies and financial institutes. Then, He was back to EC navi again, and workedfor started up West ads sales branch and Mobile site, reconstruction of Sales department and so on.In 2008, He launched Samurai Incubate Inc. specified for early ventures’ management, marketing, sales,human resource,and finance support. His company invests start up ventures and he also holds the posts of external director of some venture companies."

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $48k–$2.8M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Finance | 1 | 20% |
| Marketing | 1 | 20% |
| Advertising | 1 | 20% |
| Health Care | 1 | 20% |
| Crowdfunding | 1 | 20% |

14 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 4 | 80% |
| Series A | 1 | 20% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Anaguma | Anaguma handles business development based on the philosophy of helping people with a sustainable structure. The company's business objective is to eliminate concerns about purchases and reservations, and it delivers before-sales social networks. It also provides matching services exclusively for housekeepers' personal contracts. Thecompany also offers influencer marketing services with a focus on removing waste completely from advertising and realizing a world in which good products can be sold regardless of advertising costs.Anaguma was founded in January 2016 and is headquartered in Tokyo, Japan. |  | Series A | Jul 08, 2025 |  |
| Cardio Intelligence | Cardio Intelligence develops an AI automated diagnostic system. |  | Seed | Mar 11, 2024 |  |
| IDDK | IDDK specializes in semiconductor technology and optical technology. | $1.6M | Seed | Nov 28, 2023 |  |
| Elaly | Elaly Technology makes life better for people around the world.We aim to make the value of money and the experience gained from it flatter.As many people as possible will use technology to realize a happier life, independent of the money economy. | $2.8M | Seed | Oct 12, 2018 |  |
| Riham | Anipipo is the funding platform for animation projects. It provides a new way for animation creators to find funding to support the production of their animation, goods, event, and etc. Creators will also be able to utilize Anipipo as a platform to get connected with their fans from all over the world. | $48K | Seed | Oct 25, 2012 |  |

5 of 5 investments shown.

## Co-investors
- [Genesia Ventures](https://shizune.co/investors/profile/genesia-ventures) — VC Fund, 2 deals together
- [Mizuho Capital](https://shizune.co/investors/profile/mizuho-capital) — VC Fund, 2 deals together
- [NTT DOCOMO Ventures](https://shizune.co/investors/profile/ntt-docomo-ventures) — VC Fund, 2 deals together
- [W ventures](https://shizune.co/investors/profile/w-ventures-5f08) — VC Fund, 2 deals together
- [Asahi Media Lab Ventures](https://shizune.co/investors/profile/asahi-medialab-ventures) — VC Fund, 1 deal together
- [Big Bull](https://shizune.co/investors/profile/big-bull) — VC Fund, 1 deal together

## About A's Child

VC Fund · Tokyo, Japan

Digital parental control and personal data analysis service “Filii” for Children. Development and operation of Filii and related business.

3 contacts available at A's Child.

| Name | Title | Profile |
| --- | --- | --- |
| Atsushi Furuhata | Chief-Engineer | https://shizune.co/investors/profile/atsushi-furuhata |
| Kentaro Sakakibara | Outside Director | https://shizune.co/investors/profile/kentaro-sakakibara |
| Masashi Nishitani | Representative Director, CEO / Founder; Founder and CEO | https://shizune.co/investors/profile/masashi-nishitani |

## Similar investors

### Similar industry
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## FAQ

### What does Kentaro Sakakibara invest in?

Kentaro Sakakibara invests primarily in Finance, Marketing and Advertising startups, most often at Seed and Series A stage. Most of the 5 investments tracked by Shizune back companies in Japan. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Kentaro Sakakibara's check size?

Kentaro Sakakibara typically joins rounds of $48k–$2.8M at Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Kentaro Sakakibara participates in.

### When did Kentaro Sakakibara last invest?

The most recent investment recorded for Kentaro Sakakibara closed in Jul 2025. Shizune tracks 5 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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