# Mayumi Hara

> Mayumi Hara is a seed investor backing Apps and Blockchain. See 1 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: Angel Investor
- Total investments: 1
- Last investment: Oct 2022
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/hara-mayumi-58799b37
- X (Twitter): http://twitter.com/yume_mayu
- Website: https://x.com/yume_mayu
- Facebook: http://www.facebook.com/hara.mayumi

Mayumi Hara is a seed investor focused on Apps and Blockchain. Mayumi is a serial entrepreneur has been creating businesses and developing brands for 10 years with a vision in various industries. In 2014 she found that Japanese traditional artisans dealing with national treasures were undervalued, then founded FRAME00. Crypto startup project "Dev" makes the creator's challenges sustainable.

## Contacts

5 contacts available for Mayumi Hara: work email, personal email, work phone, personal phone and socials. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-email/hara-mayumi?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Apps | 1 | 100% |
| Blockchain | 1 | 100% |
| Information Technology | 1 | 100% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Dev Protocol | Dev Protocol lets GitHub users tokenize their OSS projects in a few clicks. Creating an OSS token allows projects to access sustainable funding, create underlying economic models for their project, and distribute incentives at scale. For the first time, OSS projects have a scalable solution to unlock their value. | $1.7M | Seed | Oct 26, 2022 | https://devprotocol.xyz |

1 of 1 investments shown.

## Co-investors
- [01booster](https://shizune.co/investors/profile/01booster) — VC Fund, 1 deal together
- [B Dash Ventures](https://shizune.co/investors/profile/b-dash-ventures) — VC Fund, 1 deal together
- [Gmjp](https://shizune.co/investors/profile/gmjp) — VC Fund, 1 deal together
- [SKY Perfect JSAT Corp](https://shizune.co/investors/profile/sky-perfect-jsat-corp) — VC Fund, 1 deal together

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## Featured in investor lists
- [Web3 Angel Investors in Japan](https://shizune.co/investors/web3-angel-investors-japan)
- [Blockchain Angel Investors in Japan](https://shizune.co/investors/blockchain-angel-investors-japan)

## FAQ

### What does Mayumi Hara invest in?

Mayumi Hara invests primarily in Apps, Blockchain and Information Technology startups, most often at Seed stage. Most of the 1 investments tracked by Shizune back companies in Japan. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Mayumi Hara?

Public channels for Mayumi Hara include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### When did Mayumi Hara last invest?

The most recent investment recorded for Mayumi Hara closed in Oct 2022. Shizune tracks 1 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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