# Sasaki Tsutomu

> Sasaki Tsutomu is a funding round investor at Non Brokers backing Internet and Enterprise. See 3 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Non Brokers](https://shizune.co/investors/profile/non-brokers)
- Location: Fukuoka, Japan
- Total investments: 3
- Last investment: Aug 2024
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/tsutomu-sasaki-5a011b39/

Sasaki Tsutomu is a funding round investor at Non Brokers in Fukuoka focused on Internet and Enterprise. Tsutomu Sasaki is the CEO at i3Systems, Inc.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Internet | 2 | 67% |
| Enterprise | 2 | 67% |
| Information Services | 2 | 67% |
| Information Technology | 2 | 67% |
| Mobile | 1 | 33% |

9 industries tracked in total.

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Tooon | Tooon Inc. is a technology company that deals with development and operations of business management tools . |  | Venture - Series Unknown | Aug 22, 2024 |  |
| i3Systems | i3Systems provides cloud and mobile solutions, focus on the development and provision of the enterprise mobile management service. Their service creates innovation in each company's activities and leads people's lives to a richer direction. When such a society is realized, IT should be on their side as a more familiar thing. They flexiblytake new values ​​and contribute to the creation of new value and idealization. They strive to make their company and each employee healthy and healthy, and use the best technology and best engineering to provide solutions that make people smile. As a result, they will operate a business where customers, their company and each employee, family members and people involved will smile. | $56.7M |  | Jun 29, 2018 |  |
| i cubed systems | i cubed systems provides information technology-related solutions for mobile devices. | $3.6M |  | Jun 29, 2018 |  |

3 of 3 investments shown.

## Co-investors
- [JAFCO](https://shizune.co/investors/profile/jafco-co-ltd) — VC Fund, 2 deals together
- [NCB Capital](https://shizune.co/investors/profile/ncb-capital) — VC Fund, 2 deals together
- [DOGAN beta](https://shizune.co/investors/profile/dogan) — VC Fund, 1 deal together
- [FFG Venture Business Partners](https://shizune.co/investors/profile/ffg-venture-business-partners) — VC Fund, 1 deal together
- [Minnano Market](https://shizune.co/investors/profile/minnano-market) — VC Fund, 1 deal together

## About Non Brokers

VC Fund · Tokyo, Japan

Non Brokers is a provision of existing housing distribution activation service using the Internet.

4 contacts available at Non Brokers.

| Name | Title | Profile |
| --- | --- | --- |
| Sasaki Tsutomu | PM | https://shizune.co/investors/profile/sasaki-tsutomu |
| Kazuma Tomine | CEO and Founder | https://shizune.co/investors/profile/kazuma-higashimine |
| Masaya Sugawara | Design | https://shizune.co/investors/profile/masaya-sugawara |
| Terada Yosuke | Director/CTO | https://shizune.co/investors/profile/terada-yosuke |

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## Featured in investor lists
- [Mobile Angel Investors in Japan](https://shizune.co/investors/mobile-angel-investors-japan)

## FAQ

### What does Sasaki Tsutomu invest in?

Sasaki Tsutomu invests primarily in Internet, Enterprise and Information Services startups, most often at Funding Round stage. Most of the 3 investments tracked by Shizune back companies in Japan. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Sasaki Tsutomu last invest?

The most recent investment recorded for Sasaki Tsutomu closed in Aug 2024. Shizune tracks 3 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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