Masaki Yamamoto
Angel Investor
Tokyo, Japan
Masaki Yamamoto is a CEO at Chatwork.
- Total investments:
- 9
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries Masaki Yamamoto invests in
Stages Masaki Yamamoto invests in
Countries Masaki Yamamoto invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $1.4M–$3.7M
Investment Focus
Industry
- Human Resources 3 (33%)
- Freelance 2 (22%)
- Management Consulting 2 (22%)
- Gift 1 (11%)
- SaaS 1 (11%)
Stage
- Seed 4 (44%)
- Series A 2 (22%)
- Series B 1 (11%)
- Series D 1 (11%)
- Venture - Series Unknown 1 (11%)
Country
- Japan 8 (89%)
- United States 1 (11%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Compass is a Solve problems in the local labor market with Consultation x Technology | $1.5M / Series B / Dec 05, 2025 | ||
| StartPass is an IT firm that provides startups with a cloud-based management acceleration platform to solve problems. | $1.4M / Seed / Nov 05, 2025 | ||
| Tooon Inc. is a technology company that deals with development and operations of business management tools . | Venture - Series Unknown / Aug 22, 2024 | ||
| Orosy, a Tokyo-based company offering a wholesale marketplace for small retailers to discover and purchase makers, craft brands, smaller manufacturers. Orosy raised $3.4 million in Seed funding. | $2M / Series A / Feb 28, 2024 | ||
| MisakyTokyo provides food and beverage services. | $3.7M / Seed / Nov 21, 2023 | ||
| FreeC a platform that connects millions of employers and job seekers by utilizing intelligent matching technology that is powered by AI. | Series A / Jun 19, 2023 | ||
| Interstellar Technologies is a rocket development, manufacturing and launch service. | $29.6M / Series D / Jan 16, 2023 | ||
| Sollective is an invite-only freelancer network where companies can directly hire talent inside and outside of Japan. Sollective connects freelancers and companies that are ready to work together to maximize each's potential and lead the business to success. | $2.3M / Seed / Dec 07, 2022 | ||
| Villio provides talent experience SaaS which helps companies with human resource development and recruitment of talented engineers. | Seed / Jun 23, 2021 |
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FAQ
What does Masaki Yamamoto invest in?
Masaki Yamamoto invests primarily in Human Resources, Freelance and Management Consulting startups, most often at Seed and Series A stage. Most of the 9 investments tracked by Shizune back companies in Japan. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What round sizes does Masaki Yamamoto invest in?
Masaki Yamamoto typically joins rounds of $1.4M–$3.7M at Seed. These are whole funding-round sizes, not Masaki Yamamoto's own check, which is rarely disclosed: the 10th–90th percentile of the confirmed public funding rounds Masaki Yamamoto took part in.
How do I contact Masaki Yamamoto?
Public channels for Masaki Yamamoto include LinkedIn. 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 Masaki Yamamoto last invest?
The most recent investment recorded for Masaki Yamamoto closed in Dec 2025. Shizune tracks 9 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 Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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