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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.
Key Metrics
Founded Year
2020
Location
Tokyo, Japan
Portfolio Companies
Stages of Investment
Seed, Series A & 2 more
Locations of Investment
Unicorn in Portfolio

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
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

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
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

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.
Here are One Capital's investments by stage:
Stage of entry
No. of Investments
Seed
14
Series A
6
Series B
4
Series C
2
Breakdown of One Capital's investments by stage of entrySeed (14)Series A (6)
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.
Here are One Capital's investments by sector:
Sector
No. of Investments
Enterprise Applications
16
Consumer
4
HealthTech
4
Business Services
3
Vertical SaaS
3
Others
17
Breakdown of One Capital's investments by sectorsEnterprise Applic... (16)Consumer (4)
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.
Here are One Capital's investments by geography:
Country
No. of Investments
Japan
23
Finland
1
Norway
1
Romania
1
Breakdown of One Capital's investments by countriesJapan (23)Finland (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
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
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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.

Recent News related to One Capital

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FAQs about One Capital

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