About One Capital
One Capital, an accelerator and incubator program founded in 2020, is based in Tokyo, Japan. With a presence in 4 countries, it has supported around 32 startups in sectors like Enterprise Applications, HealthTech. As of Jul 2026, One Capital has 1 unicorn under its belt and has witnessed 2 portfolio exits. Most notable companies in
its portfolio include Oura, Helpfeel and Yoii. The program is backed by a team of 7 people who primarily support Seed startups based in Japan. Its latest investment was a $4.72M Seed round in Senno Therapeutics on Apr 15, 2026, which also saw participation from Saisei Ventures and Mizuho Capital.
One Capital's List of Top Investments
One Capital has a portfolio of 32 companies, one of which is a Unicorn. Their most notable investments are in LOOV and Medmain.Their portfolio spans across Japan, Finland, Norway and 1 more locations. They have invested in Enterprise Applications, HealthTech, Consumer and 13 other sectors, across stages such as Seed, Series A and 2 more. Here is the list of top investments by One Capital:1. Oura
Developer of a smart ring for sleep, fitness, stress, and health. The ring collects personal health metrics and insights through biometric readings. It focuses on wellness, longevity, activity, fitness, heart health, women's health, and stress management. The device is designed for comfortable, continuous wear to provide data-driven health awareness.
Key facts about Oura
- Founded Year: 2013
- Location: Oulu (Finland)
- Annual Revenue: €100M - €500M as on Sep 30, 2024
- Valuation: $*****
- Stage: Series E
- Total Funding till date: $1.32B
- Employee Count: 1,410 as on May 31, 2026
- Investors: Fidelity Investments, Temasek and 70 Others
- Latest Funding Round: Series E, Oct 14, 2025, $*****
- Highlight: Editors' Pick

2. Helpfeel
Offering complaint management platform. The system helps to answer all customer questions and reduces the burden on customer service staff and call centers. It is a FAQ system that can handle ambiguous expressions that differ slightly from person to person, sensory expressions, and spelling mistakes.
Key facts about Helpfeel
- Founded Year: 2007
- Location: Kyoto (Japan)
- Stage: Series E
- Total Funding till date: $144M
- Employee Count: 73 as on May 31, 2026
- Investors: Opt, JP Investment and 14 Others
- Latest Funding Round: Series E, Jan 27, 2026, $*****
- Highlight: Editors' Pick

3. Yoii
Online marketplace for revenue-based financing. It is a fundraising platform that enables businesses to raise funds based on future revenue. Businesses can register on the platform by adding the required details. Once the targeted fund is obtained, the funds are transferred to the registered bank account.
Key facts about Yoii
- Founded Year: 2021
- Location: Tokyo (Japan)
- Stage: Series A
- Total Funding till date: $9.98M
- Employee Count: 23 as on May 31, 2026
- Investors: Global Brain, ITOCHU Technology Ventures and 9 Others
- Latest Funding Round: Series A, Dec 08, 2023, $*****
- Highlight: Editors' Pick
4. ROXX
Online recruitment marketplace agency. The solution features two platforms namely agent bank and backcheck. Agent back provides a job distribution platform that connects job companies and recruitment agencies. It provides a full referral fee with full monthly billing and referrals for jobs. Backcheck is a monthly reference check service.
Key facts about ROXX
- Founded Year: 2011
- Location: Minato City (Japan)
- Stage: Public
- Total Funding till date: $21.6M
- Employee Count: 48 as on May 31, 2026
- Investors: Global Brain, Mizuho Capital and 10 Others
- Latest Funding Round: Series B, Nov 02, 2022, $*****
- Highlight: Public

5. AstroX
Developer of satellite launch rockets using the Rockoon method. The company focuses on advancing space transportation through its launch vehicle development program. It aims to address challenges within the space industry. The company's activities include research and development related to space launch technology. The executive team includes expertise in aerospace engineering and rocket launch operations.
Key facts about AstroX
- Founded Year: 2022
- Location: Minamisoma (Japan)
- Stage: Series A
- Total Funding till date: $17.7M
- Employee Count: 11 as on May 31, 2026
- Investors: Mizuho Financial Group, Shizuoka Financial Group and 16 Others
- Latest Funding Round: Series A, Feb 04, 2026, $*****
- Highlight: Editors' Pick
One Capital's Year-on-Year Investment Trends
One Capital has invested in 32 companies over the last 6 years, with an average of 4 new investments annually in the last 5 years. In 2025, it made 8 investments, while as of Apr 2026, it has made 6 investments in this year. Its most recent first time investment was in Senno Therapeutics and most recent follow-on round was in Digireha.Year | No. of Investments | ||
|---|---|---|---|
1st Round | Follow-on | Total | |
2026 (YTD) | 5 | 1 | 6 |
2025 | 6 | 2 | 8 |
2024 | 5 | 0 | 5 |
2023 | 1 | 3 | 4 |
2022 | 4 | 2 | 6 |
2021 | 3 | 0 | 3 |
2020 | 2 | 0 | 2 |
One Capital's Investments by Stage
One Capital has made 14 investments in Seed stage with an average round size of $2.87M, 6 investments in Series A stage with an average round size of $5.33M, 4 investments in Series B stage with an average round size of $10.6M and 2 investments in Series C stage with an average round size of $52.2M.Stage of entry | No. of Investments |
|---|---|
Seed | 14 |
Series A | 6 |
Series B | 4 |
Series C | 2 |
Note: We have considered here, only first round of investments
One Capital's Investments by Sector
One Capital has a diverse portfolio, with companies operating in the Enterprise Applications, Consumer, HealthTech, Business Services and Vertical SaaS. Notably, it has invested in 26 Tech companies, 24 Enterprise (B2B) companies, 21 Software companies and at least 15 companies focusing on Saas.Sector | No. of Investments |
|---|---|
Enterprise Applications | 16 |
Consumer | 4 |
HealthTech | 4 |
Business Services | 3 |
Vertical SaaS | 3 |
Others | 17 |
Note: We have considered here, only first round of investments
One Capital's Investments by Geography
One Capital has made most investments in Japan (23), followed by Finland where it has made 1 investment.Country | No. of Investments |
|---|---|
Japan | 23 |
Finland | 1 |
Norway | 1 |
Romania | 1 |
Note: We have considered here, only first round of investments
One Capital's recent investments
One Capital has made 6 investments in 2026 so far. Senno Therapeutics and CRISP are the latest among them.Here are the most recent investments by One Capital:
Date | Company | Location | Round Details | Round Amount | Co-Investors |
|---|---|---|---|---|---|
Apr 15, 2026 | Japan | Seed | 2588 | [+1] | |
Mar 31, 2026 | Japan | Series B | 8024 | ||
Mar 31, 2026 | Japan | Series C | 7942 | ||
Mar 11, 2026 | Japan | Seed | 9617 | ||
Feb 27, 2026 | Japan | Seed | 2905 |
Unicorns in One Capital's Portfolio
One Capital has 1 unicorn in its portfolio - Oura. The most recent unicorn in their portfolio is Oura which became a unicorn in 2022.Here is a list of unicorns in One Capital's portfolio:
Tracxn Score | Company | Short Description | Founded year | Sector | Location | Company Stage | First Investment/ Acquisition Details |
|---|---|---|---|---|---|---|---|
79 | Developer of a smart ring for sleep, fitness, stress, and health | 2013 | Oulu | Series E | gfvlwxz |
IPOs and Publicly Listed companies in One Capital's Portfolio
2 of One Capital's portfolio companies have become public. Basic got listed on the Tokyo Stock Exchange (TYO), in Mar 2026 at marketcap of $27.4M and ROXX got listed on the Tokyo Stock Exchange (TSE) at marketcap of $101M.Here are One Capital's portfolio companies that went public:
Company | IPO Date | First Invested on | First Round of Investment | Round Size |
|---|---|---|---|---|
Mar 25, 2026 | - | - | 7322 | |
Sep 25, 2024 | Nov 02, 2022 | Series B | 8084 |
Team profile of One Capital
One Capital has a team of 7 members including 4 Partners and 2 Principals located in Japan. One Capital's team does not sit on the board of any company as of now.Here is a list of all team members in One Capital:
Name | Designation | Location | Board Memberships | Contact Details |
|---|---|---|---|---|
Partner | Tokyo | - | ||
Partner | Japan | - | ||
Partner | Tokyo | - | ||
Partner | Tokyo | - | ||
Principal | Tokyo | - | ||
Principal | Japan | - | - |
Co-investors of One Capital
Over the past 6 years, 168 investors have co-invested in One Capital's portfolio companies. This includes funds and angels.
- Invested before One Capital: Mitsubishi UFJ Capital, Mizuho Capital and 66 others have invested in rounds before One Capital. There are 3 companies where Mitsubishi UFJ Capital has invested before One Capital and 2 companies where Mizuho Capital has invested before One Capital.
- Top Co-investors of One Capital: 68 investors entered a company along with One Capital. These include investors like Plug and Play Tech Center (2 companies).
- Invested after One Capital: A total of 32 investors have invested in One Capital's portfolio after their investments. Top Investors include Global Brain (2 companies) and Siena Secondary Fund (1 company).
Recent News related to One Capital
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Digireha, provider of digital rehabilitation tools, raises funds.Sogyo Techo•Feb 27, 2026•Digireha, One Capital, Beta.Ventures, DGHD
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Digiriha, the pre -series A2 round funding is implemented.Cumulative procurement amount ...Biglobe•Oct 25, 2024•Digireha, One Capital Management, Beta.Ventures, Ymm and 7 others
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