Top 30 Medical Angel Investors in Japan in January 2026
Top 30 Medical Angel Investors in Japan in January 2026
| Investor | Medical Japan investments |
|---|---|
| Hirofumi Miki | 2 |
| Daisuke Yamashita | 1 |
| Kaya Takafumi | 1 |
| Kazuhiro Ishikura | 1 |
| Sakano Atsushi | 1 |
| Yamashita Tetsuya | 1 |
| Ichiro Umeda | 1 |
| Kenshin Fujiwara | 1 |
| Yu Akasaka | 1 |
| Hayama Takashi | 1 |
| Toshiro Wakimaru | 1 |
| Taro Fukuyama | 1 |
| Tatsuya Shiga | 1 |
| Takeuchi Makoto | 1 |
| Junji Oshita | 1 |
| Minoru Moriya | 1 |
| Koichiro Yoshida | 1 |
| Chikako Morimoto | 1 |
| Fujimoto Shuuhei | 1 |
| Kazuhiko Ishikura | 1 |
| Tatsuya Ota | 1 |
| Hiromasa Umeda | 1 |
| Tadashi Masuoka | 1 |
| Yoshimori Ito | 1 |
| Kamata Tomihisa | 1 |
| Suzuki Tatsuya | 1 |
| Hiroaki Kitano | 1 |
| Otomi Tomohiro | 1 |
| Yuichi Kawaji | 1 |
| Yuki Sugigami | 1 |
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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.
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- Content, Marketing, Internet
- Seed, Angel, Pre-Seed
- Japan
Portfolio highlights
- Epicbase — Epicbase is an AI-based automatic voice transcription service based on voice recognition technology.
- Go Visions — Go Visions engages in the edutainment tech for children and human resources services.
- Ai-Dounyu.com — Ai-Dounyu.com is a platform that helps organizations looking to integrate AI choose their ideal AI implementation partner for free.
Daisuke Yamashita - CEO @ Next Innovation
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- Medical, Internet, Education
- Angel
- Japan
Portfolio highlights
- Next Innovation — Next Innovation is an online consulting provider for health care.
- Next Innovation — Next Innovation is an investment firm that focuses on the education sector.
Kaya Takafumi - President / Founder @ SignalTalk
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- Medical, Health Care, Information Technology
- Series A
- Japan
Portfolio highlights
- Aiwell — Aiwell is a medical and health company that provides health information and the provision of health promotion and prevention services.
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.
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- Beauty, Content, Fashion
- Seed, Angel, Funding Round
- Japan
Portfolio highlights
- Neith — Neith is a apparel manufacturer, seller and a whoelseller of water absorbing bralette, lingerie and shorts for women.
- WARC — 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.
Sakano Atsushi
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- Medical, Nursing and Residential Care, SaaS
- Seed, Series B
- Japan
Portfolio highlights
- Heartseed — Heartseed has set a mission to “open the door to heart disease treatment with regenerative medicine” and is working toward the day-to-day clinical application of myocardial regenerative medicine.
- Matsuri Technologies — matsuri technologies is a real estate tech company that provides solutions to support private property rentals. The company's products include m2m Systems, an Airbnb management platform that helps business operators to manage their accounts, communicate with guests, automate check-ins, offer customer service, and more.
Yamashita Tetsuya
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- Medical, Health Care, Facilities Support Services
- Seed
- Japan
Portfolio highlights
- KURASERU — KURASERU is a Japanese startup company that provides facility matching service for medical social workers and care managers.
Ichiro Umeda is the Chairman of the New Era Strategy Institute.
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- Medical, Payments, Health Care
- Seed
- Japan
Portfolio highlights
- Agatyca — Agatyca is an IT company that develops customized solutions to optimize payment system processes for organizations.
Kenshin is a CEO at Hacarus Inc., a healthcare technology startup based in Kyoto, Japan.He co-founded several tech startups with 2 exits in the past 15 years. His first career started as an engineer at Sony Computer Entertainment and worked on PlayStation development projects. HIs fist startup was acquired by Japanese public company, and thesecond startup was sold to the US company.Born in 1976. He holds a Computer Science degree from California State University. He loves mountain hiking and currently living in Kyoto Japan with his wife and family.
Show more...Investment focus
- Mobile, Medical, Software
- Seed, Series A
- Japan
Portfolio highlights
- Helpfeel — Our vision is to make saving, sharing, and exploring ideas as natural as breathing. On this journey we're humbled to be helping millions around the world from solo makers to university research labs, from gamers to pro designers, and large to small teams like ours.
- HACARUS — We make AI work, where common Big Data aproaches fail. Get explainable results, even from small data amounts. Available on the cloud or as embedded devices.
During Hosei University student, and intern at Hakuhodo C & D. After joining the Image-net, I do media monetization of EC site as a media planner. Then, new business, engaged in Alliance. Launched a crowdsourcing site "MILLION DESIGNS" of design in the individual, sold to Ransazu Corporation. Established the Eureka Co., Ltd., wasappointed Representative Director CEO.
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- Food and Beverage, Content, Internet
- Seed, Angel, Funding Round
- Japan, Australia, Hong Kong
Portfolio highlights
- Now Do — Now Do provides online growth revolution platform.
- RE — RE specializes in smartphone application design and development.
- Vitalogue Health — Vitalogue Health offers Canvas, a home-based hormone testing service for women.
Hayama Takashi - Outside Director @ Eco Style
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- SNS, Beauty, Medical
- Seed
- Japan
Portfolio highlights
- MedPeer — MedPeer operates as a community site for doctors. MedPeer is a recruitment agency collective registration service.MedPeer operation of "MedPeer," a collective intelligence service/ community website for physicians.
Toshiro “Tosh” Wakimaru is the Chief Operating Officer of MedPeer, Inc. , Tokyo, Japan since May 2010. Medpeer is the “Medical Doctor Exclusive” SNS in Japan that has just successfully gone to the market in 2014.Prior to the current job, Tosh had been actively working for Price Waterhouse Consulting, Japan LLP (now IBM Japan, Ltd.) aftergraduating from the Boston University School of Management in 1996. While there he completed numerous projects in corporate strategy, operation improvement, and new business development focusing on the retail, service, and healthcare industries with a secondment to the Ministry of Economy, Trade and Industry.
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- Task Management, Food and Beverage, SNS
- Seed, Funding Round
- Japan, India
Portfolio highlights
- Clear — Clear, Inc. operates sake subscription service “SAKELIFE".
- Cub McPaws — Buy comfortably fashionable kids clothes (4 - 12 years) online in India from Cub Mcpaws at best prices. Gorgeous dresses, jumpsuits, t-shirts, shirts & bottom wear for boys and girls | Free Shipping | COD
- Smartround — Smartround is a specialized finance management platform for startups and their investors. For start-ups, for entrepreneurs who are not familiar with finance, simply enter the necessary information according to the guide, prepare appropriate financing round, and prepare a function that can simulate and execute a capital increase. Support informationsharing and communication with shareholders even after the capital increase.
Taro Fukuyama is Co-Founder and CEO of Fond.
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- Artificial Intelligence, Software, Information Technology
- Seed, Pre-Seed, Series A
- United States, Japan
Portfolio highlights
- Sorcerer — Sorcerer builds weather balloons that fly for over six months, collecting 1000x more data per dollar and reaching previously inaccessible regions
- Oway — Join thousands that ship freight instantly with Oway's rideshare freight platform and save up to 50% on your shipping. Pickups in just 1 hour, delivered overnight with insurance and tracking included on all shipments.
- Vybe — Vybe is a software company that provides pre-built integrations and AI tools for users to develop and launch internal AI-powered apps.
Mr. Shiga is a Part-time lecturer at the University of Tokyo
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- Medical, Taxi Service, Public Safety
- Seed
- Japan
Portfolio highlights
- Mairu Tech — Mairu tech that enables traveling by private ambulance and welfare taxi more convenient.
At Yamanouchi and Astellas, engaged in drug discovery research in the areas of inflammation and bone metabolism, and created osteoporosis treatment minodronate and overactive bladder treatment solifenacin. After serving as Director of the Chemical Research Laboratory, Astellas Pharma Research Division, Executive Officer, Research PromotionDivision, and General Manager of the Research Management Division, he became Senior Executive Officer, External Relations Director. In addition, he has been involved in a wide range of industry activities, serving as the Research and Development Committee of the Japan Pharmaceutical Manufacturers Association, the chairman of the Industrial Policy Committee, and the Vice Chairman of the Regenerative Medicine Innovation Forum. He also studied at the University of Pennsylvania (Professor Amos B Smith III) for one year from 2001. Graduated from Toyama Medical and Pharmaceutical University Graduate School of Pharmacy. Lecturer at Seminar on Advanced Drug Discovery Science sponsored by the Pharmaceuticals Promotion Association
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- Information Technology, Mobile, Medical
- Seed, Series A, Funding Round
- Japan
Portfolio highlights
- Flyle — Flyle provides a cloud based platform for product management helping customers to improve productivity & creativity in product development.
- Reiwa Travel — Reiwa Trave is a digital travel agency intended that optimizes overseas travel. The company's platform uses online travel booking tools that provide digitalized contracts along with trip management, thereby enabling its customers' vacation and leisure experiences.
- Linkage — Linkage is a Online health support business and Online specific health guidance.
Junji Oshita - Chief Executive Officer & President @ Axel Mark
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- Medical, Marketing, Health Care
- Seed, Funding Round
- Japan
Portfolio highlights
- Quatre — Quatre is a planning, operation and sales of all real promotion platform air catalog.
- KURASERU — KURASERU is a Japanese startup company that provides facility matching service for medical social workers and care managers.
Minoru Moriya is a director at AuB.
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- Health Care, Nursing and Residential Care, Internet
- Seed, Series A, Funding Round
- Japan
Portfolio highlights
- M-Box — M-Box provides IT solutions to the pharmaceutical and healthcare industries and operates web services.
- HANOWA — HANAWA is a matching platform between freelance dental hygienists and dental clinics.
- Willbox — Willbox is an international logistics company providing an international logistics digital platform for shippers and logistics companies. The company's platform "Giho" connects shippers and logistics companies (transportation, packaging, warehousing, customs clearance, etc.) with a direct contract. It visualizes the three elements of[lead time, money, and safety], which have been regarded as a black box, and supports comparative examination and decision making. Willbox digitizes the packing technique of wooden boxes and steel, mandatory for international logistics, and incorporated them into their system. Their mission is to solve the logistics issues focusing on the large cargo of industrial products.The company was founded in 2019 and is based in Yokohama-shi, Kanagawa.
Founder and CEO at CrowdWorks.
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- Internet, Software, Human Resources
- Seed, Funding Round, Pre-Seed
- Japan, Hong Kong, United States
Portfolio highlights
- Kaimak — Kaymak is a recruitment platform that focuses on creating a recruitment website, planning a recruitment strategy, and managing candidates.
- Recipio — Recipio is an receipt management platform specialized in providing digital receipt solution. Their innovative digital receipt solution and breakthrough receipt-scanning technology.
- Mairu Tech — Mairu tech that enables traveling by private ambulance and welfare taxi more convenient.
Chikako Morimoto - External Counsel @ Traimmu
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- Human Resources, Employment, Information Technology
- Seed, Funding Round
- Japan
Portfolio highlights
- Dofa — Dofa aims to develop services that enrich the way of life and work of human resources that are active mainly in sales.
- Best Beer Japan — Best Beer Japan provides a barrel tracking software for craft beer and barrel sharing. The company was founded in 2018.
- Vitalogue Health — Vitalogue Health offers Canvas, a home-based hormone testing service for women.
Fujimoto Shuuhei
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- Medical, Health Care, Marketing
- Seed, Funding Round
- Japan
Portfolio highlights
- 3Sunny — 3Sunny is a company which helps in solve medical care issues so that everyone can feel at ease. The company solves the problems of people in the field while utilizing technology, and create a reliable society that will eventually reach the desired end. 3Sunny was founded in July 2016 and is headquartered in Tokyo, Japan.
- Contrea — Contrea develops and operates a tool that helps doctors explain the patient to be convinced and treated.
Kazuhiko Ishikura is based out of Tokyo, Tokyo and is the Co-Founder and Director of SDF Capital. Kazuhiko previously worked at 3minute Inc. as a Director. Kazuhiko Ishikura attended Aoyama Gakuin University.
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- Beauty, Content, Fashion
- Seed, Angel, Pre-Seed
- Japan
Portfolio highlights
- Neith — Neith is a apparel manufacturer, seller and a whoelseller of water absorbing bralette, lingerie and shorts for women.
- WARC — 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.
Mr. Ota is an International Fencing Federation Director
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- Medical, Taxi Service, Public Safety
- Seed
- Japan
Portfolio highlights
- Mairu Tech — Mairu tech that enables traveling by private ambulance and welfare taxi more convenient.
Hiromasa Umeda - Representative Director and CEO @ Medical note
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- Information Technology, Media and Entertainment
- Seed
- Japan
Portfolio highlights
- Pleap — Pleap is a medical engineering company specializing in the development of AI and IoT-based technology solutions tailored for medical institutions. The company's product offerings include "medimo" which is an AI tool that automatically creates medical record manuscripts from medical audio.
- Ostance — Ostance is a group that moves the world in all kinds of entertainment.
- Conoris Technologies — Conoris Technologies is a staffing agency that offers security check support services for companies.
Tadashi Masuoka - President and Founder @ nippontect systems
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- Medical, Health Care, Home Health Care
- Seed
- Japan
Portfolio highlights
- Plusmedi — Plus Medi is the developer of MyHospital, a medical care and management app offering personal health record (PHR) solutions.The app aims to help users by reducing the time they spend at the hospital or doctor's office. MyHospital also includes features like bills payment, medication management, and online paperwork.
Yoshimori Ito is the Director at Toggle Holdings..
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- Medical, Wellness, Health Care
- Series A
- Japan
Portfolio highlights
- SARAH — SARAH has been working on the planning and operation of the gourmet community app "SARAH", which operates a menu gourmet site "SARAH" that allows you to search for items you want to eat from menu-based posts.
- MTU — MTU offers medical security cloud services to medical organizations and delivers IT support, including the recent cyber harm to medical institutions, both online and offline.
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.
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- Fitness, Medical, Genetics
- Seed, Angel
- Japan, United States
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.
1985. Graduated from the Faculty of Economics, Hitotsubashi University. In 2008, he engaged in new business support and venture support for large companies at Inspire Co., Ltd. In 2011, he was appointed director of UXConsulting company wacul. In 2012, he was appointed director of giftee.
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- Internet, Agriculture, Information Technology
- Seed, Funding Round, Angel
- Japan
Portfolio highlights
- Pleap — Pleap is a medical engineering company specializing in the development of AI and IoT-based technology solutions tailored for medical institutions. The company's product offerings include "medimo" which is an AI tool that automatically creates medical record manuscripts from medical audio.
- AGRI SMILE — AGRI SMILE is a platform that focuses on sharing agricultural technology.
- Conoris Technologies — Conoris Technologies is a staffing agency that offers security check support services for companies.
Hiroaki Kitano is the SVP at Softbank Mobile. He attended Waseda University.
Show more...Investment focus
- Health Care, Information Technology, Fitness
- Seed, Angel, Debt Financing
- Japan, United States
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.
Otomi Tomohiro - CEO @ Tyrus
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- Health Care, Travel, Content
- Seed, Angel, Funding Round
- Japan
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.
Yuichi Kawaji is the Deputy General Manager, General Consulting Department, Dai-Ichi Kangyo Shinkin Bank.
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- Medical, Wearables, Electronics
- Series A
- Japan
Portfolio highlights
- Ashirase — Ashirase is a developer of a walking navigation system for the visually challenged. The company assists visually impaired people in walking independently. This also allows the user to have more attention to spare for audible warnings in their environment. It includes voice input and guidance via a smartphone app. A vibration interface is attachedto their shoes.
Mr. Sugigami is a Part-time lecturer at the University of Tokyo & Angel Investor
Show more...Investment focus
- Medical, Taxi Service, Public Safety
- Seed
- Japan
Portfolio highlights
- Mairu Tech — Mairu tech that enables traveling by private ambulance and welfare taxi more convenient.
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