# Naoya Koizumi

> Naoya Koizumi is a Series A investor at Optorun backing Apps and Software. See 1 investments, check sizes, portfolio and contact details. Updated Sep 2026.

- Type: Angel Investor
- Fund: Optorun
- Total investments: 1
- Last investment: Feb 2021
- Lead investor: 0%
- Last updated: Sep 2026

Naoya Koizumi is a Series A investor at Optorun focused on Apps and Software.

## Contacts

5 contacts available for Naoya Koizumi: 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/naoya-koizumi-6a08?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Apps | 1 | 100% |
| Software | 1 | 100% |
| Mobile Apps | 1 | 100% |
| Virtual Reality | 1 | 100% |
| Augmented Reality | 1 | 100% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Gatari | Gatari specializes in the planning, development, and operation of XR services. Auris, a futuristic audio guide, and Vismuth, a camera app that transforms reality into a story, are two of Gatari's services. | $952.3K | Series A | Feb 22, 2021 |  |

1 of 1 investments shown.

## Co-investors
- [Mainichi Future Creation Laboratory](https://shizune.co/investors/profile/mainichi-future-creation-laboratory) — VC Fund, 1 deal together
- [Nagoya TV Ventures](https://shizune.co/investors/profile/nagoya-tv-ventures-beaf) — VC Fund, 1 deal together
- OLM Digital — VC Fund, 1 deal together
- [U-Tokyo Entrepreneur Supporter's Club Incubation Fund](https://shizune.co/investors/profile/u-tokyo-entrepreneur-supporter-s-club-incubation-fund) — VC Fund, 1 deal together
- [W ventures](https://shizune.co/investors/profile/w-ventures-5f08) — VC Fund, 1 deal together

## About Optorun

VC Fund · Kawagoe, Japan

Optorun manufactures and sells optical thin film equipment. Their product categories such as product lineup deposition equipment, ion source beam-assisted deposition method, reactive plasma deposition method, metal mode sputtering method, atomic layer deposition method, component, ion source, and optical monitor.

1 contacts available at Optorun.

| Name | Title | Profile |
| --- | --- | --- |
| Naoya Koizumi | Office Manager | https://shizune.co/investors/profile/naoya-koizumi-6a08 |

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

## FAQ

### What does Naoya Koizumi invest in?

Naoya Koizumi invests primarily in Apps, Software and Mobile Apps startups, most often at Series A 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 Naoya Koizumi?

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 Naoya Koizumi last invest?

The most recent investment recorded for Naoya Koizumi closed in Feb 2021. 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 Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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