300+ investors in your industry, stage, and region Get
Any industry
Community
Proptech
Biotech
Climate
Artificial Intelligence
Media (Entertainment)
Impact
FinTech
Marketplace
EdTech
Consumer
Agriculture (AgTech)
Web3
Clean Energy
B2B
Organic Food
Big Data
Video Games
Payments
Celebrity
Franchise
Mobile
Local
Social Network
Platforms
Crowdfunding
CleanTech
Film
Theatre
Life Science
Non Profit
Transportation
Gaming
Energy
Hardware
Health Care
Enterprise
Sustainability
Venture Capital
Restaurants
Fashion
Real Estate
Retail
Infrastructure
Mobile Apps
Beauty
LGBT
Publishing
Sporting Goods
Oil and Gas
Education
Renewable Energy
Food and Beverage
Cryptocurrency
Finance
Financial Services
Photography
Art
Medical
Digital Media
Music
Internet
Social Media
Manufacturing
Facebook
Blockchain
Legal
Android
Social Impact
Google
Construction
Sports
eSports
Enterprise Software
Email
Wellness
Hospitality
Travel
Fitness
Mobile Advertising
Cannabis
Recruiting
Biotechnology
Medical Device
Wine and Spirits
Automotive
Social
InsurTech
SaaS
Software
Any country
Qatar
South Korea
Africa
Asia
LATAM
Europe
Oceania
Middle East
Ireland
Singapore
Indonesia
Spain
Saudi Arabia
Belarus
Belgium
Colombia
Denmark
Ecuador
Czech Republic
Estonia
Ghana
Ethiopia
Finland
Barbados
Italy
Jersey
Cayman Islands
Mali
Malaysia
Mauritius
Poland
Rwanda
Togo
Slovenia
San Marino
Tanzania
Thailand
Uruguay
Venezuela
Portugal
Azerbaijan
Namibia
Bolivia
Latvia
Cyprus
New Zealand
United States
Germany
Australia
India
United Kingdom
Canada
China
South Africa
Brazil
Japan
Sri Lanka
Vietnam
Argentina
Armenia
Austria
Bangladesh
Bahrain
Bulgaria
Bermuda
Chile
Cameroon
Switzerland
Belize
Costa Rica
Algeria
Georgia
Egypt
Hong Kong
Gibraltar
Faroe Islands
Greece
Croatia
France
Hungary
Kuwait
Israel
Lebanon
Cambodia
Kenya
Jordan
Lithuania
Liberia
Liechtenstein
Myanmar
Kazakhstan
Morocco
Norway
Mexico
Panama
Malta
Peru
Philippines
Nicaragua
Pakistan
Russian Federation
Romania
Sweden
Serbia
Seychelles
Turkey
Puerto Rico
Sierra Leone
Senegal
Tunisia
Tajikistan
El Salvador
Uganda
Zambia
Uzbekistan
Taiwan
Ukraine
Zimbabwe
Bahamas
Guatemala
Iraq
Iceland
Nigeria
United Arab Emirates
Honduras
Isle of Man
Luxembourg
Oman
Angel Investors
VC Funds
All Investors
Download Find emails Save list
Open database

Top 15 Social Network Angel Investors in Japan (May 2026)

The most active angel investors investing in Japan Social Network startups. This investor list is updated monthly from the Shizune investor database, ranked by number of investments in Japan Social Network startup companies. Find investors to raise a Seed, Series A or Angel round with Shizune.
Investor Relevant Deals Geography Stage Focus Round Size
Kensuke Furukawa
Angel
3 Japan Seed, Angel Content, Media and Entertainment, Software $961k–$41M
Hironao Kunimitsu
Angel
2 Japan, United States Seed, Angel Content, Media and Entertainment, Virtual Reality
Otomi Tomohiro
Angel
1 Japan Seed, Angel Health Care, Travel, Content $5.5M–$8.2M
Kazuhiro Ishikura
Angel
1 Japan Seed, Angel Beauty, Content, Fashion $6.9M–$6.9M
Yuma Umeda
Angel
1 Japan Seed, Angel, Series A Gift, Internet, Software
Ayataro Nakagawa
Angel
1 Japan, Hong Kong, United States Seed, Angel Internet, Software, Information Technology $412k–$23M
Hiroaki Kitano
Angel
1 Japan, United States Seed, Angel, Debt Financing Health Care, Information Technology, Fitness $6.9M–$41M
Kazuma Ieiri
Angel
1 Japan Seed, Angel Content, Fashion, Recruiting $380k–$41M
Ryo Ishizuka
Angel
1 United States, Japan Seed, Series A SNS, Beauty, Content
Yuto Nagatomo
Angel
1 Japan Seed, Angel SNS, Sports, Content
Kamata Tomihisa
Angel
1 Japan, United States Seed, Angel Fitness, Medical, Genetics
Kentaro Ruichi
Angel
1
Yusuke Sato
Angel
1 Japan, Indonesia, United States Seed, Angel Internet, Content, Food and Beverage $2.1M–$41M
Yasuyuki Kin
Angel
1 Japan Seed, Angel, Pre-Seed Media and Entertainment, Information Technology, Career Planning $1.4M–$14M
Masao Ito
Angel
1 Japan Seed, Series A, Angel Content, Social Media, Information Technology $640k–$16M
Access all 18 angel investors in Japan Social Network startups.

Access 48,091 investors

822 industries, 177 countries. Updated daily. Emails and phones included.

Browse database — It's Free!

Investor list

Kensuke Furukawa
Angel · Tokyo, Tokyo, Japan · 3 investments in Japan Social Network startups

Kensuke Furukawa was born in June 2, 1981. He graduated Waseda University majoring Political Science and Economics, and in 2000, he launched "Milkcafe", a student community, which has grown to a site with 10 million PV per month. In 2004, he became the CEO of Media Clip, which operates a rental bulletin board service "ShitarabaBBS". After that year, he had transfer "Shitaraba BBS" to Livedoor, and took charge of starting up the Consumer Generated Media sector. In 2006, he joined Recruit, and took charge of starting up a new business at Business development sector. In June of 2009, he left Recruit, and became the CEO of nanapi (formerly Rocket Start), which operates the How-to Site "nanapi".

Show more...

Investment focus

  • Industry: Content, Media and Entertainment, Software
  • Stage:Seed, Angel
  • Geography: Japan

Investor stats

  • Total investments: 37
  • Round size: Seed $961k–$41M
  • Lead/follow: 0% lead, 100% follow

Portfolio highlights

  • Plott — Plott producing youtube animation platform under Vision “Become a Content holder from YouTube”. In August 2019, the company name was changed from Fabo to Plott. Plott, the new company name, is derived from the plot that you make before writing novels, etc., and the idea that “I want to make content all the time” is put in the company name.
  • Now Do — Now Do provides online growth revolution platform.
  • FiNANCiE — FiNANCiE is a social networking service.
Show all investments...

Hironao Kunimitsu
Angel · Tokyo, Tokyo, Japan · 2 investments in Japan Social Network startups

Hironao Kunimitsu was born in Hyogo, Japan. After graduating from Okayama High School, he spent several years traveling around the world. He visited over 30 countries including the US, China, India, Canada, and others in Central and South America.In 1996 he entered Fudan University in China, and then later went on to study at Santa MonicaCollege in the US. In 2004 he entered Atmovie Inc. where he produced movies and televised dramas, and was appointed company director in the same year. In 2007 he founded gumi Inc., and it started listing on first section of the Tokyo Stock Exchange in December, 2014.

Show more...

Investment focus

  • Industry: Content, Media and Entertainment, Virtual Reality
  • Stage:Seed, Angel
  • Geography: Japan, United States

Investor stats

  • Total investments: 17
  • Lead/follow: 18% lead, 82% follow

Portfolio highlights

  • 1SEC — 1sec is a virtual influencers in Japan,develop in-house and management. IMPACT to CEKAI in 1 second. Based on the concept of making CEKAI happy in one second, US based in Los Angeles and Japan, based in Tokyo, virtual influencers × AI, fashion & music & The company will develop a number of CEKAI's first and first projects in Japan inthe field of enter teignment.
  • Gatari — Gatari is developing an AR audio platform, including the AR camera app Vismuth, which can call avatars in reality.
  • SPORTS CROWN — SPORTS CROWN engages in the development and operation of fantasy sports.
Show all investments...

Otomi Tomohiro
Angel · 1 investments in Japan Social Network startups

Otomi Tomohiro - CEO @ Tyrus

Show more...

Investment focus

  • Industry: Health Care, Travel, Content
  • Stage:Seed, Angel
  • Geography: Japan

Investor stats

  • Total investments: 6
  • Round size: Seed $5.5M–$8.2M
  • Lead/follow: 0% lead, 100% follow

Portfolio highlights

  • CUICIN — Quickin is changing the travel experience with the digital transformation.
  • HANOWA — HANAWA is a matching platform between freelance dental hygienists and dental clinics.
  • Magic Shields — Magic Shields is a manufacturer and seller of floors, nursing care, and welfare products.
Show all investments...

Kazuhiro Ishikura
Angel · Tokyo, Tokyo, Japan · 1 investments in Japan Social Network startups

Kazuhiro Ishikura served as the head of the Akatsuki Business Management Department in 2013 and as a corporate auditor of Akatsuki in 2014, contributing to the company's listing on the TSE Mothers and TSE 1st sections. Appointed 3minute CFO in 2015, engaged in business start-up and organizational design, and succeeded in large-scale M & Adeal with Glee. After leaving the company, he became a WARC director in November 2018. Certified public accountant.

Show more...

Investment focus

  • Industry: Beauty, Content, Fashion
  • Stage:Seed, Angel
  • Geography: Japan

Investor stats

  • Total investments: 11
  • Round size: Seed $6.9M–$6.9M
  • Lead/follow: 9% lead, 91% follow

Portfolio highlights

  • Neith — Neith is a apparel manufacturer, seller and a whoelseller of water absorbing bralette, lingerie and shorts for women.
  • WARC Japan — WARC provides hands-on support for business management departments as well as mergers and acquisition advisory services.
  • Vitalogue Health — Vitalogue Health offers Canvas, a home-based hormone testing service for women.
Show all investments...

Yuma Umeda
Angel · 1 investments in Japan Social Network startups

Yuma Umeda

Show more...

Investment focus

  • Industry: Gift, Internet, Software
  • Stage:Seed, Angel, Series A
  • Geography: Japan

Investor stats

  • Total investments: 5
  • Lead/follow: no public data

Portfolio highlights

  • XMart — Xmart is a Costs can be reduced by simply sending invoices for one month.
  • AGRI SMILE — AGRI SMILE is a platform that focuses on sharing agricultural technology.
  • Another works — Another works is a internet platform & the industry's first service that allows you to directly approach the talent you are interested in from a database of a variety of ready-to-work and multi-tasking personnel. You can also use the performance fee for free.
Show all investments...

Ayataro Nakagawa
Angel · 1 investments in Japan Social Network startups

2011 At university, participated in the founding period as a director of Atcole Co., Ltd., and started the web service experience.2012 Founded Peroli Co., Ltd., which operates a curation platform for women "MERY" .2014 Founded Peroli Co., Ltd. Sold to DeNA 2015 Jointly established Tokyo Founders Fund as an angel investor and startedinvesting in startups in Japan and overseas 2019 Appointed outside director of FIREBUG Co., Ltd.

Show more...

Investment focus

  • Industry: Internet, Software, Information Technology
  • Stage:Seed, Angel
  • Geography: Japan, Hong Kong, United States

Investor stats

  • Total investments: 41
  • Round size: Seed $2.4M–$23M; Angel $412k–$7.1M
  • Lead/follow: 10% lead, 90% follow

Portfolio highlights

  • Meetscare — Meetscare provides correct information and supports the self-awareness of all people involved in care. The company provides a wealth of information to ensure optimal care and create a mechanism for the realization. Users can make a telephone consultation and web diagnosis and search for free information using the system.Meetscare was founded on2016 and is headquartered in Arakawa, Tokyo.
  • SPORTS CROWN — SPORTS CROWN engages in the development and operation of fantasy sports.
  • Recipio Japan — Recipio is a service that can suggest recipes just by entering ingredients the user already has at home. The app can also refine suggestions based on the user's mood, the occasion, and how many people the user is eating with, and more.
Show all investments...

Hiroaki Kitano
Angel · 1 investments in Japan Social Network startups

Hiroaki Kitano is the SVP at Softbank Mobile. He attended Waseda University.

Show more...

Investment focus

  • Industry: Health Care, Information Technology, Fitness
  • Stage:Seed, Angel, Debt Financing
  • Geography: Japan, United States

Investor stats

  • Total investments: 6
  • Round size: Seed $6.9M–$41M
  • Lead/follow: 0% lead, 100% follow

Portfolio highlights

  • GPx — GPx is a biotech company that revolutionizes remote chronic disease management with bloodless blood tests. It is dedicated to transforming the standard of care of cardiorenal diseases and enabling patients to better understand their condition, much like the continuous glucose monitor has transformed diabetes care.The company was founded in 2020and is based in Boston, Massachusetts.
  • Epistra — Epistra accelerates research and development in life sciences.
  • Activaid — Activaid owns and operates a social data platform for patients with inflammatory bowel disease. It allows patients to support and exchange information within the patient community with the same disease; provide information necessary for new drug development and matching to clinical trials that suits them; and improve medical treatment. YasuakiHasebe founded Activaid in 2018. It has its headquarters in Tokyo in Japan.
Show all investments...

Kazuma Ieiri
Angel · Tokyo, Tokyo, Japan · 1 investments in Japan Social Network startups

Born in 1978 and raised in Fukuoka prefecture, Kazuma founded paperboy&co. inc. (currently GMO Pepabo) and went on to become the youngest CEO ever (at the time) to take a company public in Japan by taking paperboy&co. public on the JASDAQ Japanese stock exchange. After leaving paperboy&co, he continued his startup trail by foundingBASE, CAMPFIRE, and XIMERA. Kazuma also dabbled in the food services industry via the founding of On The Corner (a cafe) and is active in the startup investment scene. He also started the Liverty-house project which attempts to create shared housing for young people in need.

Show more...

Investment focus

  • Industry: Content, Fashion, Recruiting
  • Stage:Seed, Angel
  • Geography: Japan

Investor stats

  • Total investments: 16
  • Round size: Seed $380k–$41M; Angel $989k–$7.1M
  • Lead/follow: 6% lead, 94% follow

Portfolio highlights

  • Taliki — Taliki is a Coworking Space Operates Social Entrepreneurs Development Support for Intrepreneur Development.
  • ONE NOVA — One Nova (ワンノバ) is a lifestyle brand and online platform that offers a range of innerwear products, such as men's boxers.
  • vivid garden — vivid garden is an Agriculture company.
Show all investments...

Ryo Ishizuka
Angel · San Francisco, California, United States · 1 investments in Japan Social Network startups

Ryo Ishizuka is the co-founder and CEO of Mercari, a hassle-free peer-to-peer mobile marketplace app. After founding the company in Japan and following its successful launch, Ryo leads Mercari's international expansion as the company grows globally. Prior to founding Mercari, Ryo was the Chief Architect at RockYou, a Silicon Valley startupbacked by Sequoia. At RockYou, he was responsible for developing the core infrastructures to support its rapidly growing traffic, serving more than 20 billion PVs per month. He later served as COO at RockYou Asia to lead its Asian expansion. Born in Japan and raised in the US, Ryo has spent his life constantly moving and building bridges between the two countries.

Show more...

Investment focus

  • Industry: SNS, Beauty, Content
  • Stage:Seed, Series A
  • Geography: United States, Japan

Investor stats

  • Total investments: 5
  • Lead/follow: 20% lead, 80% follow

Portfolio highlights

  • .sfty — Teatis is a plant-based sugar-blocking superfood powder for diabetic consumers.
  • Flyp — Grow resale business with easy access to inventory and free automation tools. Join 10,000+ resellers today.
  • HOMMA — Inspired Modern Living. Homes to elevate healthy urban lifestyles. Design. Build. Technology.
Show all investments...

Yuto Nagatomo
Angel · 1 investments in Japan Social Network startups

Yuto Nagatomo - President, CEO, and Founder @ Cuore Co., Ltd.

Show more...

Investment focus

  • Industry: SNS, Sports, Content
  • Stage:Seed, Angel
  • Geography: Japan

Investor stats

  • Total investments: 8
  • Lead/follow: 0% lead, 100% follow

Portfolio highlights

  • MIL — MIL is a marketing company it can be used for a wide range of video marketing such as video commerce , O2O measures , recruitment videos , and landing videos.
  • Now Do — Now Do provides online growth revolution platform.
  • SAURUS JAPAN
Show all investments...

Access 48,091 investors

822 industries, 177 countries. Updated daily. Emails and phones included.

Browse database — It's Free!
Kamata Tomihisa
Angel · Tokyo, Tokyo, Japan · 1 investments in Japan Social Network startups

Dr. Kamada earned his Ph.D. at the University of Tokyo. In 1984, he pursued his journey to establish his own business that focused on information appliances and mobile software, namely ACCESS Co., Ltd.. With great success, the company entered the Tokyo Stock Exchange Mothers Market in 2001. He left ACCESS Co., Ltd. in 2011, and founded TomyK Ltd.in 2012 where he supports startups possessing revolutionary business ideas that revitalize the Japanese economy.

Show more...

Investment focus

  • Industry: Fitness, Medical, Genetics
  • Stage:Seed, Angel
  • Geography: Japan, United States

Investor stats

  • Total investments: 3
  • Lead/follow: 0% lead, 100% follow

Portfolio highlights

  • Activaid — Activaid owns and operates a social data platform for patients with inflammatory bowel disease. It allows patients to support and exchange information within the patient community with the same disease; provide information necessary for new drug development and matching to clinical trials that suits them; and improve medical treatment. YasuakiHasebe founded Activaid in 2018. It has its headquarters in Tokyo in Japan.
  • Genomelink — Genomelink is a platform where people discover more with their DNA data and help businesses build, market and do research with it. The best founders in consumer genomics with real experience in the industry for many years, including M3, Inc. ($13B valued Meditech in Japan), a founding member of the Japanese version of 23andMe, and leadbioinformatician and software engineer at a joint-venture between Illumina and Sony. Raised $4M for Seed Round from Berkeley SkyDeck, SONY, and top-tier Japanese VCs. Supported by Illumina Accelerator, Carlos Bustamante Lab at Stanford University among others.
  • MinD in a Device — MinD in a Device Co., Ltd. is a university-launched venture that aims to port human consciousness to devices (machines and computers) in the medium to long term based on long-term research results on consciousness. As the first step toward realization, we will evolve and deepen the "generation model" considered to be the source ofconsciousness, and promote the development of next-generation AI and social implementation.
Show all investments...

Kentaro Ruichi
Angel · 1 investments in Japan Social Network startups

Ruichi Kentaro is an Angel Investor.

Show more...

Investor stats

  • Total investments: 1
  • Lead/follow: no public data

Portfolio highlights

  • Graffity — Graffity to provide AR experiences globally and enrich life more conveniently and invent the AR entertainment experience and provide it globally.
Show all investments...

Yusuke Sato
Angel · 1 investments in Japan Social Network startups

Yusuke Sato is the Co-Representative and Co-Founder at Pulit.

Show more...

Investment focus

  • Industry: Internet, Content, Food and Beverage
  • Stage:Seed, Angel
  • Geography: Japan, Indonesia, United States

Investor stats

  • Total investments: 57
  • Round size: Seed $2.1M–$41M; Angel $3.8M–$41M
  • Lead/follow: 0% lead, 100% follow

Portfolio highlights

  • AirX — AirX is a management service company specializing in air transportation agency business and travel arrangement business. The company leverages technology to transform the notion of mobility into an unprecedented experience. It also provides services such as CodeShare, AIROS Skyview, and AIROS Air Loss. AirX will create the movement of the futuresociety, sightseeing and the way of life of helicopter, Empty MaaS, Flying taxi, eVTOL, and Next-generation traffic.AirX was established on February 23, 2015, and is based in Shinjuku-ku, Tokyo, Japan.
  • yup — yup is providing services to support freelance people's funding.The freelance population in Japan has been shown to continue to increase in many Chosa. While working styles are diversified, they are not able to respond to the development of the working environment, and they will develop their business to change the situation where problemssuch as funding, credit, sexual harassment, and power harassment are accumulated.
  • Meetscare — Meetscare provides correct information and supports the self-awareness of all people involved in care. The company provides a wealth of information to ensure optimal care and create a mechanism for the realization. Users can make a telephone consultation and web diagnosis and search for free information using the system.Meetscare was founded on2016 and is headquartered in Arakawa, Tokyo.
Show all investments...

Yasuyuki Kin
Angel · Tokyo, Tokyo, Japan · 1 investments in Japan Social Network startups

Yasuyuki Kin

Show more...

Investment focus

  • Industry: Media and Entertainment, Information Technology, Career Planning
  • Stage:Seed, Angel, Pre-Seed
  • Geography: Japan

Investor stats

  • Total investments: 16
  • Round size: Seed $1.4M–$14M
  • Lead/follow: 13% lead, 87% follow

Portfolio highlights

  • Onepair — Onepair is a job consulting and recruiting company. Onepair is to co-creating careers by talking about real-world ace with active ace.
  • Strainer Co., Ltd. — Strainer Co., Ltd. is an information distribution platform that conveys corporate information centered on financial data. Although there are not a few media to deliver financial information, the company's strengths are strong to be easily viewed, including financial information of overseas companies.
  • LAMILA — LAMILA develops system that improves the creation of retail stores.
Show all investments...

Masao Ito
Angel · 1 investments in Japan Social Network startups

Masao Ito is a Founder & CEO at User Local.

Show more...

Investment focus

  • Industry: Content, Social Media, Information Technology
  • Stage:Seed, Series A, Angel
  • Geography: Japan

Investor stats

  • Total investments: 17
  • Round size: Seed $640k–$16M; Series A $12M–$13M
  • Lead/follow: 6% lead, 94% follow

Portfolio highlights

  • mikai — mikai is a virtual YouTuber management, VR / AR content development.
  • Tokyo — Tokyo provides consistently-designed signage and projector installation, as well as maintenance company support. All customers need is “product selection” considering installation. This is a service that does not take time and effort!
  • Graffity — Graffity to provide AR experiences globally and enrich life more conveniently and invent the AR entertainment experience and provide it globally.
Show all investments...

Social Network Angel investor funding in Japan at a glance

Stats across 11 deals from 18 investors.

18
investors
in Japan Social Network startups
11
deals
in Japan Social Network startups
$14M
median round
in Japan Social Network startups
6%
lead investors
lead at least one round
45%
Seed
most common funding stage

Access all 18 angel investors in Japan Social Network startups.

Open List

FAQ

Is Shizune data fresh/accurate?

Shizune has monitored hundreds of funding sources since 2020.

Our investor database is updated every day, so investor data is always fresh.

All metrics are calculated from confirmed public rounds, so the data is accurate.

Can I download investor list?

To download the Social Network Angel Investors in Japan investor list, create a Shizune account. This investor list will be added to your saved investors and available for download in the export section.

You can also enrich the investor list with investor emails, phones, LinkedIns, and other contact data.

Can I access investor database?

To access all 18 angel investors investing in Japan Social Network startups and 48,091+ more investors, create a Shizune account.

Shizune has a database of 48,091 investors. Our investor database is fresh and updated daily.

The Shizune investor database has information on investor investment focus, investor contact data, and full investor portfolio since 2020.

You can enrich with email and download the data.

Does Shizune have investor emails and contacts?

Shizune enriches investors with contact data that includes: email, phones, LinkedIn, socials, website, and others.

To guarantee the highest discovery rate, we search across 20+ contact search tools.

To maximize delivery rate and reduce bounce rate, we validate emails.

You can enrich your investor list with Shizune. Download it too.

What is Shizune?

Shizune is a 48,091 investor database updated daily.

With Shizune you can:

  • browse the database
  • use smart matching
  • enrich with emails
  • download

All you need to find investors for your startup.

Who is Shizune for?

Shizune is built for startup founders by startup founders.

If you are looking for funding for your startup, try the Shizune database — we have investors for every stage, industry, and country.

Is Shizune free?

Shizune is free forever. You can search and browse investors for free.

Email search and export are paid features.

For full info, visit our pricing.

Who built Shizune?

Shizune is built by founders with the goal of helping all founders raise funding no matter where they are.

Contact 100 investors today

Find who invests in your industry, stage, and country. Download investor list with emails in 5 minutes.

Find investors — It's Free!

More investor lists

Broader lists