Top 10 Social Impact 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 |
|---|---|---|---|---|---|
|
Sotaro Karasawa
Angel
|
1 | Japan | Seed, Pre-Seed, Angel | Software, Blockchain, Art | $948k–$14M |
|
Tatsuo Sakamoto
Angel
|
1 | Japan | Seed, Angel, Pre-Seed | Information Technology, Content, Education | $272k–$17M |
|
Keito Noguchi
Angel
|
1 | Japan | Seed | Wellness, Lifestyle, Elder Care | |
|
Toru Ei
Angel
|
1 | Japan | Seed | Wellness, Lifestyle, Elder Care | |
|
Kenji Kasahara
Angel
|
1 | Japan, United States | Seed, Pre-Seed, Series A | Information Technology, Aerospace, Education | $329k–$7.7M |
|
Kyung wook Han
Angel
|
1 | Japan | Seed | Freelance, Consulting, Business Development | |
|
Takuma Iwai
Angel
|
1 | Japan | Seed | Wellness, Lifestyle, Elder Care | |
|
Katsuhiro Tamukai
Angel
|
1 | Japan | Seed | Wellness, Lifestyle, Elder Care | |
|
Maiko Kojima
Angel
|
1 | Japan | Seed | Consulting, Information Technology, Social Entrepreneurship | |
|
Koichi Noda
Angel
|
1 | Japan | Seed | Consulting, Information Technology, Social Entrepreneurship | |
| Access all 1 angel investors in Japan Social Impact startups. | |||||
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Tatsuo Sakamoto is a Head of Sales, Japan at MOLOCO. He Attended The University of Tokyo.
Show more...Investment focus
- Industry: Information Technology, Content, Education
- Stage:Seed, Angel, Pre-Seed
- Geography: Japan
Investor stats
- Total investments: 20
- Round size: Seed $457k–$17M; Pre-Seed $272k–$9.9M
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- bgrass — bgrass is a consultation support platform for women working in the IT industry.
- Kids Snack Lab — Kids Snack Lab is a food manufacturing firm that produces and sells nutritional sweets for children.
- Metaverse Creators — Metaverse Creators is a feature-rich virtual platform providing gamers with a wide range of games, creation tools, and avatar editing tools.
Keito Noguchi is a Brave group Representative Director, and Angel Investor.
Show more...Investment focus
- Industry: Wellness, Lifestyle, Elder Care
- Stage:Seed
- Geography: Japan
Investor stats
- Total investments: 1
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- AgeWell Japan — Age Well Japan is a conference and festival aimed at understanding Japan's super-aged society and defining new values for the future. The purpose of the gathering is to bring together young people and the elderly to exchange ideas.
Toru Ei is a Kaizen Platform CGO, and Beautydoors CEO.
Show more...Investment focus
- Industry: Wellness, Lifestyle, Elder Care
- Stage:Seed
- Geography: Japan
Investor stats
- Total investments: 1
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- AgeWell Japan — Age Well Japan is a conference and festival aimed at understanding Japan's super-aged society and defining new values for the future. The purpose of the gathering is to bring together young people and the elderly to exchange ideas.
Born in 1975, Kenji Kasahara grew up in Osaka Prefecture. He graduated from the Department of Economics at the University of Tokyo. Inspired by the case studies of IT business he studied in a university seminar on management strategy and by the rapid rise of Internet business in Silicon Valley in the USA, he started up “Find Job !”, an online jobinformation site, in 1997. In 1999 Kasahara established eMercury, Inc. (mixi, Inc.) and assumed the post of representative director.
Show more...Investment focus
- Industry: Information Technology, Aerospace, Education
- Stage:Seed, Pre-Seed, Series A
- Geography: Japan, United States
Investor stats
- Total investments: 15
- Round size: Seed $329k–$2.5M; Series A $3.1M–$7.7M
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- Voicetep — Voicetep is a unique dating app that enables users to begin meaningful connections without needing to share photos or exchange messages, instead fostering relationships through voice-based interactions that emphasize personality, authenticity, and genuine communication from the very first encounter.
- AVIATE — AVIATE Inc. is a Tokyo-based technology startup that designs and builds AI-driven business automation systems. The company develops TASKBASE, an operational workflow layer that allows enterprise teams to run backend business operations entirely from natural language prompts.
- Nicoli — Nicoli is a company that creates content and advertisements that increase happy time for parents and children .
Kyung-wook Han is an Individual Investor.
Show more...Investment focus
- Industry: Freelance, Consulting, Business Development
- Stage:Seed
- Geography: Japan
Investor stats
- Total investments: 2
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- bgrass — bgrass is a consultation support platform for women working in the IT industry.
- Tooon — Tooon Inc. is a technology company that deals with development and operations of business management tools .
Takuma Iwai Co-CEO of Advisor Time.
Show more...Investment focus
- Industry: Wellness, Lifestyle, Elder Care
- Stage:Seed
- Geography: Japan
Investor stats
- Total investments: 1
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- AgeWell Japan — Age Well Japan is a conference and festival aimed at understanding Japan's super-aged society and defining new values for the future. The purpose of the gathering is to bring together young people and the elderly to exchange ideas.
Katsuhiro Tamukai is a COO of Cost Science.
Show more...Investment focus
- Industry: Wellness, Lifestyle, Elder Care
- Stage:Seed
- Geography: Japan
Investor stats
- Total investments: 1
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- AgeWell Japan — Age Well Japan is a conference and festival aimed at understanding Japan's super-aged society and defining new values for the future. The purpose of the gathering is to bring together young people and the elderly to exchange ideas.
Co-Founder and Vice President CTO/CFO at Prime Again Inc.
Show more...Investment focus
- Industry: Consulting, Information Technology, Social Entrepreneurship
- Stage:Seed
- Geography: Japan
Investor stats
- Total investments: 1
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- bgrass — bgrass is a consultation support platform for women working in the IT industry.
Koichi Noda - Chief Human Resources Officer @ Works Human Intelligence
Show more...Investment focus
- Industry: Consulting, Information Technology, Social Entrepreneurship
- Stage:Seed
- Geography: Japan
Investor stats
- Total investments: 1
- Lead/follow: 0% lead, 100% follow
Portfolio highlights
- bgrass — bgrass is a consultation support platform for women working in the IT industry.
Social Impact Angel investor funding in Japan at a glance
Stats across 1 deals from 1 investors.
Access all 1 angel investors in Japan Social Impact startups.
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Sotaro Karasawa - Chief Technology Officer @ STAR FESTIVAL
Show more...Investment focus
Investor stats
Portfolio highlights
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Taian
— Taian, which specializes in bridal industry services and software. They also provide ''Concept Marry,'' which allows couples to design invites and seating charts that match their wedding theme, as well as display guest information on Oiwaii.
-
Cloudbase
— Cloudbase is an information technology company that specializes in the fields of cloud services and management.
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OPERA TECH
— OPERA Lead is a sales-focused AI web chatbot service from Opera Technology that turns websites into 24/7 "exhibit booths" for lead generation.It deploys AI sales assistants on existing sites (via simple tag embedding, no redesign needed) to engage the 99% of visitors who don't convert via inbound methods alone. Key capabilitiesinclude direct booking of meetings, guiding users to whitepapers/webinars, and targeted lead qualification for efficient deal progression.
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