# Oki Matsumoto

> Oki Matsumoto is a angel investor at Monex Group backing Information Technology and FinTech. See 8 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Monex Group](https://shizune.co/investors/profile/monex-group)
- Location: Tokyo, Japan
- Total investments: 8
- Last investment: Nov 2020
- Lead investor: 13%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/okimatsumoto/
- Facebook: https://www.facebook.com/oki.matsumoto

Oki Matsumoto is a angel investor at Monex Group in Tokyo focused on Information Technology and FinTech. Oki Matsumoto is based out of Tokyo, Tokyo and is the Executive Chairperson of Coincheck Group. Oki previously worked at JPX Market Innovation & Research as a Outside Director. Oki Matsumoto attended The University of Tokyo.

## Round sizes

| Stage | Round size |
| --- | --- |
| Angel | $2.1M–$20M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Information Technology | 3 | 38% |
| FinTech | 2 | 25% |
| Software | 2 | 25% |
| Blockchain | 2 | 25% |
| Cryptocurrency | 2 | 25% |

23 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Angel | 3 | 38% |
| Seed | 1 | 13% |
| Series A | 1 | 13% |
| Series B | 1 | 13% |
| Funding Round | 1 | 13% |

6 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| Japan | 5 | 63% |
| Taiwan | 1 | 13% |
| Australia | 1 | 13% |
| United Arab Emirates | 1 | 13% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Space Walker | SPACE WALKER specializes in the design, manufacture, and sale of reusable rockets and peripheral components. SPACE WALKER also plans and submits proposals for space-related events and other related businesses. | $19.8M | Angel | Nov 13, 2020 |  |
| Toposware | Toposware is developing a fully interoperable blockchain ecosystem powered by zero-knowledge proofs. | $1.8M | Angel | May 08, 2020 |  |
| CoolBitX | CoolBitX Ltd. (CBX) is an international blockchain security company building the next-generation infrastructure necessary to maximize digital asset adoption. Founded in 2014 by Michael Ou and backed by SBI Holdings, CoolBitX provides solutions for a rapidly-changing blockchain industry in order to foster the mass adoption of virtual assets throughits two product lines: CoolWallet and Sygna. CoolWallet is a credit card-sized hardware wallet that allows for Bluetooth-enabled pairing with users’ mobile phones. The Sygna line of regulatory compliance products are tailored toward Virtual Asset Service Providers (VASPs), simplifying the process for VASPs to meet the compliance standards of the traditional financial industry and improve the reputation of the virtual currency industry. | $16.7M | Series B | Feb 25, 2020 |  |
| Loyyal | Loyyal leverages blockchain and smart contract technology to provide loyalty and rewards network infrastructure solutions. It introduces interoperability to the currently fragmented industry, multi-branded coalitions, superior program liability management and dynamic issuance/redemption options customized for each unique relationship. |  |  | Aug 01, 2019 |  |
| Stakk | A purpose-led fintech and neobank. Taking an AI first approach to autonomously helping customers better manage their money and live financially healthier lives. |  | Corporate Round | Jun 19, 2019 |  |
| WATASHIHA | WATASHIHA is a communication company. | $6M | Seed | Dec 25, 2018 |  |
| ARTLOGUE | ARTLOGUE is an arts tech company that innovates in the art industry through technology. It is also a social art media that works to solve social problems that make use of art. It was established on July 7, 2017. | $2.1M | Angel | Jun 12, 2018 |  |
| Popshoot | Popshoot is a developer and operater of Pota coin. "Peta Coin" is an app that predicts the price of bitcoin the next day. Anyone, from beginners to experienced cryptocurrencies, can easily learn about Bitcoin while playing. | $56.7M | Series A | Aug 25, 2017 |  |

8 of 8 investments shown.

## Co-investors
- [AG Capital](https://shizune.co/investors/profile/ag-capital) — VC Fund, 1 deal together
- [ANRI](https://shizune.co/investors/profile/anri) — VC Fund, 1 deal together
- [Bitsonic](https://shizune.co/investors/profile/bitsonic) — VC Fund, 1 deal together
- [Digital Hollywood](https://shizune.co/investors/profile/digital-hollywood-30c2) — VC Fund, 1 deal together
- [Global Brain Corporation](https://shizune.co/investors/profile/global-brain-corporation) — VC Fund, 1 deal together
- [Gree](https://shizune.co/investors/profile/gree) — VC Fund, 1 deal together

## About Monex Group

VC Fund · Tokyo, Japan

Monex Group is a financial services company in Japan. The company aims to provide world-class financial services to individual investors as an integrated online financial services broker. It endeavors to build a true financial infrastructure for individuals and to provide the best possible services needed by individuals, thereby contributing tosociety. Monex was jointly established in April of 1999 by Oki Matsumoto and Sony Corporation under this philosophy, and opened for business in October of the same year in timing with the complete liberation of securities transaction fees.The company merged with Saison Securities Co., Ltd in June of 2001, and with Nikko Beans, Inc. in 2004, establishing the holding company Monex Beans Holdings, Inc. (currently Monex Group, Inc.) which was listed on the First Section of the following year.

5 contacts available at Monex Group.

| Name | Title | Profile |
| --- | --- | --- |
| Hiroshi Aikawa | General Manager, Financial Control Department | https://shizune.co/investors/profile/hiroshi-aikawa-c4bb |
| Jonathan Keith | Senior Technical Advisor | https://shizune.co/investors/profile/jonathan-keith-6953 |
| Oki Matsumoto | Founder ,Chairman & CEO | https://shizune.co/investors/profile/oki-matsumoto |
| Shoji Kuwashima | Managing Director/ Vice Chairman | https://shizune.co/investors/profile/shoji-kuwashima |
| Takashi Oyagi | Managing Director/ Chief Strategic Officer | https://shizune.co/investors/profile/takashi-oyagi |

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## FAQ

### What does Oki Matsumoto invest in?

Oki Matsumoto invests primarily in Information Technology, FinTech and Software startups, most often at Angel and Seed stage. Most of the 8 investments tracked by Shizune back companies in Japan. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Oki Matsumoto's check size?

Oki Matsumoto typically joins rounds of $2.1M–$20M at Angel. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Oki Matsumoto participates in.

### When did Oki Matsumoto last invest?

The most recent investment recorded for Oki Matsumoto closed in Nov 2020. Shizune tracks 8 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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