Top 10 Social Angel Investors in Japan (August 2026)
For AI agents: Short investor table (Markdown), Detailed investor list (Markdown)
| Investor | Relevant Deals | Geography | Stage | Focus | Round Size |
|---|---|---|---|---|---|
|
Yuki Ota
Angel
|
1 | Japan, United States | Seed, Series A, Venture - Series Unknown | SaaS, Sales, Events | $940k–$1.6M |
|
Shunsuke Masaki
Angel
|
1 | Japan | Seed | Social, E-Commerce, Sustainability | |
|
Ogawa Ryo
Angel
|
1 | Japan | Seed | Apps, Social, Finance | $420k–$6.8M |
|
Nobuaki Chonan
Angel
|
1 | Japan | Seed | Apps, Social, E-Commerce | $645k–$1M |
|
Shinsuke Sakimoto
Angel
|
1 | Japan | Series A, Venture - Series Unknown | Sales, Social, Sports | |
|
Suzuki Yuto
Angel
|
1 | Japan | Seed, Series A, Venture - Series Unknown | SaaS, Social, Content | |
|
Tetsuya Nagashima
Angel
|
1 | Japan | Seed | Social, E-Commerce, Sustainability | |
|
Shinji Senba
Angel
|
1 | Japan | Seed | Social, E-Commerce, Sustainability | |
|
Hirofumi Miki
Angel
|
1 | Japan | Seed, Angel, Pre-Seed | Content, Internet, Software | $2.8M–$16M |
|
Yoshihiro Yamauchi
Angel
|
1 | Japan | Seed | Social, E-Commerce, Sustainability | |
| Access all 14 angel investors in Japan Social startups. | |||||
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Investor list
Mr. Masaki joined Mitsui Ventures in May 2008 as Venture Partner, and since has been focused on investments in retail and service sector. Previously, he worked at Fujita Corporation, a large operator of restaurants and retail chain, where he was responsible for store development and merchandising in Tokyo area. After several successfulyears at Fujita, he took a position with Service Business Division of Mitsui & Co., Ltd., in charge of developing new business utilizing the franchise method.
Show more...Investment focus
- Industry: Social, E-Commerce, Sustainability
- Stage:Seed
- Geography: Japan
Investor stats
- Total investments: 1
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- Gab — Gab is a company that works to solve social problems as well as develops and markets ethical products.
Ogawa Ryo - CEO @ Timee
Show more...Investment focus
- Industry: Apps, Social, Finance
- Stage:Seed
- Geography: Japan
Investor stats
- Total investments: 4
- Round size: Seed $420k–$6.8M
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- LivCo — LivCo is a support service company that offers HR, life support, real estate rental brokerage, and media platform solutions for foreigners.
- Givearth — Givearth app enable users to make donations just by carrying out their daily shopping and consumption activities.
- Media Aid — Media Aid is an advertising agency that provides recruitment, marketing, web creation, and SNS management services
Nobuaki Chonan - Outside Director @ Gumi
Show more...Investment focus
- Industry: Apps, Social, E-Commerce
- Stage:Seed
- Geography: Japan
Investor stats
- Total investments: 2
- Round size: Seed $645k–$1M
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- iiba — Iiba is a geospatial platform that specializes in providing location information related to child-rearing.
- Gab — Gab is a company that works to solve social problems as well as develops and markets ethical products.
Born in Osaka in 1982. After graduating from Dai-ichi Senior High School, Shinsuke Sakimoto matriculated to Kansai University while also joining the Gamba Osaka J-League professional soccer team. Upon retiring from soccer, Sakimoto worked and learned at his father’s recycling shop. In 2007, Sakimoto opened Nanboya , a luxury brand item buyingoffice in the Kansai region of Japan. In 2011, he established SOU Inc. (now Valuence Holdings Inc.), serving as representative director and president. From buying offices located throughout Japan to auctions, antiques and art objects, and even a personal asset management app, Sakimoto has led the way in building businesses that bring visibility to the value of personal goods. In March 2018, he led the company through a successful IPO on the Mothers section of the Tokyo Stock Exchange. Today, Shinsuke Sakimoto continues working to expand the Valuence business throughout the world and generate ever-increasing levels of customer lifetime value.
Show more...Investment focus
- Industry: Sales, Social, Sports
- Stage:Series A, Venture - Series Unknown
- Geography: Japan
Investor stats
- Total investments: 2
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- HALF TIME — HALF TIME provides branding and marketing as well as recruitment services to corporate clients. They provide valuable services with new ideas for such industries and social issues.
- Saurus Japan — SAURUS JAPAN is an online store that sells sports supplements. They provide athletes with protein and amino acids. They provide quality raw materials and formulations with a focus on safety and security. Their nutrients serve the purpose that professionals need.
Suzuki Yuto
Show more...Investment focus
- Industry: SaaS, Social, Content
- Stage:Seed, Series A, Venture - Series Unknown
- Geography: Japan
Investor stats
- Total investments: 3
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- Gab — Gab is a company that works to solve social problems as well as develops and markets ethical products.
- Aidemy — Aidemy is a web service where you can learn AI programming online.
- Bizibl Technologies — Bizibl Technologies provides SaaS services for recruitment events.
Tetsuya Nagashima - Director COO @ Gunosy
Show more...Investment focus
- Industry: Social, E-Commerce, Sustainability
- Stage:Seed
- Geography: Japan
Investor stats
- Total investments: 1
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- Gab — Gab is a company that works to solve social problems as well as develops and markets ethical products.
Shinji Senba is a Director of Green Innovations Holdings.
Show more...Investment focus
- Industry: Social, E-Commerce, Sustainability
- Stage:Seed
- Geography: Japan
Investor stats
- Total investments: 1
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- Gab — Gab is a company that works to solve social problems as well as develops and markets ethical products.
After JTB Co., Ltd. and CYBIRD Co., Ltd. as an initial member of Glee Co., Ltd. is responsible for business development. Currently, he is mainly engaged in venture support in the Internet area, investing in venture and venture capital, and served as management advisor for dozens of companies. Hands-on business development, growth strategydevelopment, financing advice, HR organization design support, partner referral and Recruit Support. He is also engaged in business support for ventures in the healthcare and university venture fields. He served as Digital Health Meetup Advisor, NEDOTCP Mentor and Future 2016 Mentor.
Show more...Investment focus
- Industry: Content, Internet, Software
- Stage:Seed, Angel, Pre-Seed
- Geography: Japan
Investor stats
- Total investments: 27
- Round size: Seed $2.8M–$16M
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- AceRNA Technologies — AceRNA contributes to regenerative medicine and drug discovery through the discovery of novel miRNA functions. It began operation in April 2018, with its headquarters in Kyoto in Japan.
- Epicbase — Epicbase is an AI-based automatic voice transcription service based on voice recognition technology.
- Flagellin — Flagellin is a pharmaceutical and medical industry.Development and sales of SaaS that supports sales and marketing of database and analysis services in the pharmaceutical and medical industries
Yoshihiro Yamauchi is a individual investor.
Show more...Investment focus
- Industry: Social, E-Commerce, Sustainability
- Stage:Seed
- Geography: Japan
Investor stats
- Total investments: 1
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- Gab — Gab is a company that works to solve social problems as well as develops and markets ethical products.
Social Angel investor funding in Japan at a glance
Stats across 3 deals from 14 investors.
Access all 14 angel investors in Japan Social startups.
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Yuki Ota
Show more...Investment focus
Investor stats
Portfolio highlights
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Retreat
— Corporate Retreat Planning | Retreat helps to plan execute custom Corporate Retreats that inspire employees, in unique locations around the globe.
-
Pictoria
— Pictoria produce total events for entertainment.They handle a wide range of events, from talk events to events using advanced technologies such as 3D motion capture.
-
HALF TIME
— HALF TIME provides branding and marketing as well as recruitment services to corporate clients. They provide valuable services with new ideas for such industries and social issues.
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