# Femto Partners

> Femto Partners is a VC fund backing Information Technology and Internet. See 22 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Tokyo, Japan
- Total investments: 22
- Last investment: Nov 2025
- Lead investor: 5%
- Last updated: Aug 2026
- Website: https://femto.vc/
- Facebook: https://www.facebook.com/femtopartners/

Femto Partners is a VC fund in Tokyo focused on Information Technology and Internet. Femto Partners, a venture capital firm, focuses on early-stage startups in Japan. We are dedicated to nurturing and advancing startups poised to revolutionize existing industries.Our services include:· Providing strategic guidance · Assembling the ideal team · Growing the customer base · Attracting new investorsOur investments areshowing results.Two notable IPO’s are:PLAID, a CX platform and a leading SaaS company in Japan, committed to crafting exceptional customer experiences. https://plaid.co.jp/en/note, a C2C Content Platform that enables a wide range of creators, supporting the creator economy. https://ir.note.jp/enWe are deeply convinced of the transformative power of startups and work closely with entrepreneurs and management teams to achieve this vision.

## Contacts

5 contacts available for Femto Partners. Shizune tracks 6 team members at Femto Partners. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/femto-growth-capital?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $460k–$2.2M |
| Series B | $6.7M–$170M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Information Technology | 4 | 18% |
| Internet | 3 | 14% |
| Software | 2 | 9% |
| E-Commerce | 2 | 9% |
| Employment | 2 | 9% |

40 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series B | 4 | 18% |
| Funding Round | 4 | 18% |
| Seed | 3 | 14% |
| Series C | 3 | 14% |
| Series A | 2 | 9% |

8 stages tracked in total.

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Hiroshi Onose | Senior Manager | 2 | https://shizune.co/investors/profile/hiroshi-onose |
| Isozaki Tetsuya | General Partners | 0 | https://shizune.co/investors/profile/isozaki-tetsuya |
| Katsuhiko Okubo | Managing Partner | 1 | https://shizune.co/investors/profile/katsuhiko-okubo |
| Sakamoto Takanobu | Director | 0 | https://shizune.co/investors/profile/sakamoto-takanobu |
| Shingo Yamada | Principal | 3 | https://shizune.co/investors/profile/shingo-yamada |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| IVRy | Ivry offers cloud based telephonic answering service. | $26.2M | Series D | Nov 06, 2025 |  |
| Henry | Henry develops and provides a cloud-based electronic medical record and receipt system for small and medium-sized hospitals. | $6.7M | Series B | Jul 30, 2025 |  |
| Marsdy | Marsdy is a numerical management and update solution that combines robots and manual operations. Combining robots and manual operations can reach the needs of your business and produce the perfect output you desire. It can handle various tasks, from sales and marketing figures to automating back-office accounting.It's headquarters is locatedin Tokyo Minato-ku Shiba, Japan. | $4.7M | Series A | Jun 16, 2025 |  |
| Leading Mark | Leading Mark, a rising human resources startup in Japan. Leading Mark is branching out into mid-career and international hiring. It currently has a one-man team in China working to bring the top Japanese-speaking Chinese students to domestic companies. He also touts his startup’s focus on the average job seeker. “We want to make sure that the usersget the info that he or she needs the most,” he says. Large scale, legacy players can sometimes prioritize the needs of the hiring company, and their commission, over the needs of applicants themselves. This leads to frustration and short-circuited careers. | $10.6M | Venture - Series Unknown | Feb 05, 2025 |  |
| IVRy | Ivry offers cloud based telephonic answering service. | $19.1M | Series C | May 23, 2024 |  |
| IVRy | Ivry offers cloud based telephonic answering service. | $19.1M | Series C | May 23, 2024 |  |
| YOUTRUST | YOUTRUST is a startup to operate YOUTRUST a referral recruitment platform for side-job change. |  | Series C | May 13, 2024 |  |
| Marsdy | Marsdy is a numerical management and update solution that combines robots and manual operations. Combining robots and manual operations can reach the needs of your business and produce the perfect output you desire. It can handle various tasks, from sales and marketing figures to automating back-office accounting.It's headquarters is locatedin Tokyo Minato-ku Shiba, Japan. | $2.2M | Seed | Oct 10, 2023 |  |
| IVRy | Ivry offers cloud based telephonic answering service. |  | Series B | Mar 01, 2023 |  |
| IVRy | Ivry offers cloud based telephonic answering service. |  | Series B | Mar 01, 2023 |  |

10 of 22 investments shown.

## Co-investors
- [SMBC Venture Capital](https://shizune.co/investors/profile/smbc-venture-capital) — VC Fund, 12 deals together
- [Bricks Fund Tokyo](https://shizune.co/investors/profile/bricks-fund-tokyo) — VC Fund, 9 deals together
- [Mitsubishi UFJ Capital](https://shizune.co/investors/profile/mitsubishi-ufj-capital) — VC Fund, 7 deals together
- [All Star SAAS Fund](https://shizune.co/investors/profile/all-star-saas-fund) — VC Fund, 6 deals together
- [Globis Capital Partners](https://shizune.co/investors/profile/globis-capital-partners) — VC Fund, 4 deals together
- [Boost Capital](https://shizune.co/investors/profile/boost-capital-ae75) — VC Fund, 3 deals together

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## FAQ

### What does Femto Partners invest in?

Femto Partners invests primarily in Information Technology, Internet and Software startups, most often at Series B and Funding Round stage. Most of the 22 investments tracked by Shizune back companies in Japan. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Femto Partners's check size?

Femto Partners typically joins rounds of $460k–$2.2M at Seed and $6.7M–$170M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Femto Partners participates in.

### How do I contact Femto Partners?

Public channels for Femto Partners include the website linked on this profile and Facebook. 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.

### Who are the partners at Femto Partners?

The team at Femto Partners includes Hiroshi Onose (Senior Manager), Isozaki Tetsuya (General Partners) and Katsuhiko Okubo (Managing Partner), among 6 team members tracked by Shizune. The Team section lists each member with their title, investment count and links.

### 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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