Best HealthTech Companies in Japan
The 371 best HealthTech companies in Japan in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: AI Medical Service.
Japan's HealthTech sector has 371 companies tracked here, ranked by disclosed equity funding and recent momentum, with a combined $925M raised so far. The global market sits at $908.5B and is forecast to reach $3140.9B by 2033, a 13.1% CAGR that puts serious wind behind every serious player. Kakehashi leads our directory at $99M raised, and Rehab for Japan sits second at $14M. No unicorns yet. But the gap between those two and the rest of the field tells you something: capital is concentrating fast, and the mid-tier is still wide open.
What's moving the needle right now is digital health consultation and innovation agency funding, and Japan's data privacy requirements add a layer that shapes which models actually scale. As 2023 research shows, digital health investment cycles track closely with national policy shifts, which matters here given Japan's aging population and rising healthcare spend. I'd also watch the funding pattern emerging across Asia more broadly, where platforms targeting access gaps are pulling institutional attention fast. Mitsubishi UFJ Capital, Global Brain and Beyond Next Ventures are the most active backers in this directory, so if you're mapping deal flow, that's where to start.
- Allied Market Research
Our analysis of 864 HealthTech companies
$73.2b in tracked funding; 89% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best HealthTech companies in Japan
| # | Company | Disclosed funding | Last round | Stage | Employees | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | AI Medical Service AI-powered endoscopic software to detect early-stage gastrointestinal cancers | $122M | 49 mo ago | Series C | 40 | 智裕 多田 CEO and Representative Director | Apple iCloud MailGoogle WorkspacePHP+25 | 38 patents AI-powered analysis and assistance for endoscopic and diagnostic medical imaging | — |
| 2 | CureApp Developer of therapeutic mobile applications for various medical conditions | $101M | 46 mo ago | Series G | 69 | Kohta Satake Md Mph Founder | Amazon Web ServicesCloudflareAmazon S3+13 | 58 patents Digital health platform for monitoring cancer symptoms and hypertension risk. | — |
| 3 | Kakehashi Platform to provide point of care educational support to patient about their medications | $99M | 12 mo ago | Series D | 296 | Yutaka Nakao Founder & CEO | Apple iCloud MailGoogle WorkspaceNode.js+29 | — | — |
| 4 | Linc'well Provider of a clinic management platform for medical practices | $69M | 54 mo ago | Series C | 30 | Ryosuke Yamamoto Co-Founder & Co-CEO | STUDIOApple iCloud MailGoogle Workspace+15 | — | — |
| 5 | Information Technology Medical Online platform for patient charts, billing, and video chatting with patients | $67M | 32 mo ago | Series C | 70 | Yusuke Sugomori Co-Founder & CTO | NotionSuper BuilderTurbopack+20 | — | — |
| 6 | WHILL Developer of wheelchairs for orthopedic support | $62M | 24 mo ago | Series D | 300 | Satoshi Sugie Co-Founder & CEO | WordPress Block EditorCart FunctionalityWooCommerce+46 | 103 patents Advanced electric wheelchair chassis and control systems for personal mobility | — |
| 7 | hacomono Provider of cloud-based customer management and payment solutions for fitness clubs and owners | $29M | 16 mo ago | Series D | 194 | Kenichi Hasuda Founder & CEO | MathJaxGSAPApache HTTP Server+27 | — | — |
| 8 | iCARE Provider of corporate health management solutions | $21M | 52 mo ago | Series E | 154 | Yota Yamada CEO | STUDIOApple iCloud MailGoogle Workspace+19 | — | — |
| 9 | TRIBEAU Online platform providing plastic and cosmetic surgery information | $20M | 19 mo ago | Series C | 35 | — | Node.jsTailwind CSSReact+22 | — | — |
| 10 | TXP Medical Digital emergency department management and coordination tool | $16M | 19 mo ago | Series C | 20 | Tomohiro Sonoh CEO | ContentfulNode.jsFirebase+15 | — | — |
| 11 | Rehab for JAPAN Provider of online and in-person rehabilitation services and data analytics for elderly care | $14M | 1 mo ago | Series D | 57 | Ryo Okubo CEO | SentryApple iCloud MailGoogle Workspace+20 | — | — |
| 12 | Medmain Provider of AI-based analysis software for pathology image diagnosis | $13M | 13 mo ago | Series A | — | Osamu Iizuka Founder & CEO | Node.jsYouTubeNext.js+14 | — | — |
| 13 | Molcure Provider of AI-based platform for drug discovery and design | $12M | 58 mo ago | Series C | 33 | Yutaro Kyono Co-Founder & CTO | — | 10 patents Protein‑binding assay technologies and bubble‑generation systems for drug delivery | 1 partnership |
| 14 | BionicM Developer of prosthetic to assist knee and ankle movements | $11M | 20 mo ago | Series A | 14 | Sunny Sun Founder & CEO | Google MapsElement UIVue.js+8 | 16 patents Advanced powered prosthetic limbs with adaptive control and joint actuation systems. | — |
| 15 | Godot Provider of behavioral science and AI-based hyper-personalization engine | $11M | 12 mo ago | Series A | 7 | Ken Moriyama Co-Founder & CEO | — | 11 patents Patents concentrated in computing, sensing & instrumentation | 1 award |
| 16 | ACCELStars Provider of sleep diagnosis and examination solutions | $7M | 18 mo ago | Series A | 18 | — | — | 9 patents Sleep‑wake detection and monitoring technology for health/medical devices | — |
| 17 | SoxAI Manufacturer of smart rings designed to monitor and analyze sleep | $6M | 8 mo ago | Series A | 5 | Tatsuhiko Watanabe Founder | Cart FunctionalityShopifySentry+32 | 2 patents Continuous physiological monitoring and health management via wearable sensor devices | — |
| 18 | Holoeyes Provider of technology for 3D VR visualizations of the human body for medical examination | $6M | 12 mo ago | Acquired | 7 | — | WordPressMySQLPHP+19 | 5 patents Medical VR data creation and server platform for clinical visualization | — |
| 19 | Yuimedi Provider of medical data analysis platform to enhance the healthcare system | $6M | 3 mo ago | Seed | 11 | Emily Grimes CEO | — | 5 patents Data conversion, generation, and medical analytics platforms for healthcare information processing | — |
| 20 | Rhelixa Provider of integrated genomic analysis platform | $6M | 21 mo ago | Series B | 56 | — | WordPressMySQLPHP+13 | 2 patents Personalized biological age assessment using nucleic‑acid biomarkers and related data generation tools | — |
| 21 | Neautech Provider of online dermatological treatments, cosmetics, and medical DX solutions. | $6M | 8 mo ago | Seed | — | Hisazumi Kashine CEO | WordPressMySQLPHP+14 | — | — |
| 22 | Miltel Provider of telomere test for detection of aging | $5M | 30 mo ago | Series A | 27 | Eitoshi Tahara Founder | WordPressMySQLPHP+12 | — | — |
| 23 | AMI Corporation Provider of stethoscope for heart disease diagnosis | $5M | 13 mo ago | Series C | 34 | Shinpei Ogawa CEO | ContentfulNode.jsFirebase+15 | — | — |
| 24 | Mirror Fit Provider of AI-based fitness mirrors for consumers | $5M | 28 mo ago | Series A | — | Huang Hao CEO | STUDIOFirebaseNode.js+9 | — | — |
| 25 | Digzyme Digital molecular modelling tool for drug development | $5M | 25 mo ago | Series A | — | Takuji Yamada Co-Founder | — | — | — |
| 26 | mediVR Provider of VR-based rehabilitation device for patients with mobility issues | $5M | 15 mo ago | Series B | — | Masahiko Hara Founder & CEO | WordPressMySQLPHP+10 | 41 patents VR-enabled rehabilitation and cognitive assessment devices for medical therapy | — |
| 27 | Hedgehog MedTech Provider of digital therapeutic application for headache management | $4M | 5 mo ago | Series B | — | Yumi Kawata CEO | STUDIOFirebaseNode.js+9 | — | — |
| 28 | Emium Corporation Provider of cloud-based platform for managing and optimizing digital advertising campaigns | $4M | 14 mo ago | Seed | 3 | — | — | 3 patents Embedded AI-driven data processing and control systems for medical devices | — |
| 29 | Digireha Provider of rehabilitation system for children | $4M | 3 mo ago | Seed | — | Yuki Oka CEO | GSAPAstroNginx+22 | — | — |
| 30 | Corporate-m Provider of AI-based software for the analysis of brain images | $4M | 21 mo ago | Series A | — | Susumu Mori Founder | Node.jsGSAPVue.js+9 | — | — |
| 31 | Grace imaging Wearable device for tracking muscle metabolism | $4M | 35 mo ago | Series A | 8 | — | — | 4 patents Medical imaging and bioanalysis sensors with integrated data processing algorithms | — |
| 32 | Jmees Digital AI-based surgery support system for providers | $4M | 31 mo ago | Series B | 13 | Osamu Takeshita Co-Founder | WordPressMySQLPHP+22 | 7 patents AI-driven surgical assistance tools and medical image analysis platforms | — |
| 33 | Cardio Intelligence AI-based medical devices for diagnosis and treatment of heart diseases | $3M | 3 mo ago | Series B | — | Yuichi Tamura CEO | WordPressMySQLPHP+14 | 31 patents AI-driven electrocardiogram signal analysis and diagnostic decision support software | — |
| 34 | Boston Medical Sciences AI-powered colorectal cancer screening system | $3M | 16 mo ago | Series A | — | Masaki Okamoto CEO & President | WordPressMySQLPHP+11 | — | — |
| 35 | Awarefy Provider of digital cognitive behavioral therapy application | $3M | 18 mo ago | Series A | — | Shinichiro Ogawa CEO | STUDIOFirebaseNode.js+24 | — | — |
| 36 | GramEye Developer of AI and robotics solutions for pathological testing | $2M | 6 mo ago | Series B | 4 | Yu Hiraoka CEO | STUDIOFirebaseNode.js+11 | 3 patents Automated microscopy slide preparation, staining, and image analysis systems | — |
| 37 | emol AI-based mental wellness app | $2M | 17 mo ago | Series A | — | Saori Sento CEO | PHPNginxcore-js+9 | — | — |
| 38 | Precal Provider of online prescription management software | $2M | 18 mo ago | Seed | 6 | — | WixSentryBootstrap+13 | — | — |
| 39 | MamaWell Provider of maternal and child health support | $2M | 6 mo ago | Seed | — | Marika Seki Founder & CEO | STUDIOFirebaseNode.js+15 | — | — |
| 40 | Flora AI-powered application to support women health from adolescence to menopause | $1M | 1 mo ago | Seed | 7 | Anna Kreshchenko Co-Founder & CEO | Node.jsTypeScriptGraphQL+14 | 5 patents Mitochondrial activation compounds and related bioanalysis software for cellular therapeutics | — |
| 41 | Opt Fit AI-based gym management app for fitness centers | $1M | 7 mo ago | Series B | 15 | Nozomi Watanabe CEO | WordPressMySQLPHP+24 | — | — |
| 42 | Light Touch Technology Developer of non-invasive blood glucose sensor utilizing advanced laser technology | $1M | 1 mo ago | Series B | — | Koichi Yamakawa CEO | WixSentryBootstrap+10 | 32 patents In vivo optical biosensing for blood analyte quantification and tissue identification | — |
| 43 | PITTAN Digital amino acid-based sweat analysis tool | $1M | 8 mo ago | Seed | 2 | Emi Maeda Co-Founder | Cart FunctionalitySquarespace CommerceSquarespace+12 | 3 patents Non‑invasive biosensor patches for real‑time physiological monitoring and analysis. | — |
| 44 | Mini Iku Provider of electronic medical record system for veterinary clinics | $935K | 11 mo ago | Series A | 7 | Yusuke Kurokawa Founder & CEO | WordPressMySQLPHP+15 | — | — |
| 45 | Melon Provider of mindfulness programs for individuals and corporations, and instructor training | $824K | 6 mo ago | Series A | — | Daisuke Hashimoto CEO | WordPressMySQLPHP+23 | — | — |
| 46 | Time Prediction Provider of digital iPSC technology to predict and avoid intractable diseases | $538K | 18 mo ago | Seed | — | Tomoko Tada CEO & President | — | — | — |
| 47 | Carelogy Provider of a technology platform for diagnosis in cats | $443K | 17 mo ago | Seed | — | Naoki Kawamoto Co-Founder | AlgoliaNode.jsBubble+17 | — | — |
| 48 | Do.Sukasu Provider of VR-based solutions for visual cognitive disabilities | $406K | 8 mo ago | Seed | — | Kazuki Kasai CEO | — | 2 patents 3D spatial cognition assessment and training hardware/software systems | — |
| 49 | Veritus Provider of an AI-powered platform automating research workflows for experts. | $252K | 11 mo ago | Seed | — | Manas Kala CEO | Node.jsRadix UITailwind CSS+13 | — | — |
| 50 | DLeader Developer of an AI platform streamlining drug discovery and development | $120K | 9 mo ago | Seed | — | Qingwen Chen Co-Founder & CEO | — | — | — |
Top 12 HealthTech companies in Japan
#1
Series D · Chiyoda City, Tokyo · founded 2016 · 57 employees$14.2Mraised▾
Provider of online and in-person rehabilitation services and data analytics for elderly care. It offers software for healthcare providers, online rehabilitation support, and data analysis services to improve care. The company aims to enhance the quality of life for the elderly through technology, focusing on making rehabilitation more accessible and enjoyable. Its services utilize data-driven approaches to create personalized care plans and contribute to a sustainable elderly care system. They also develop and offer a SaaS platform for scientific care.
- Feb 2024Series D$6.7M
- Feb 2023Series D$6.7M
- Aug 2018Seed$900.9K
#2
Series D · Tokyo, Tokyo · founded 2016 · 296 employees$99.2Mraised▾
Platform to provide point of care educational support to patient about their medications. They refer to the patient's disease, age, gender, allergy, lifestyle, inspection value, season, past prescription and past medication history, and present the contents of the guidance for each patient. It helps patients understand guidance and supports ideal medication and healthy living.
- Jun 2025Series D$96.9M
- Jun 2025Venture Debt—
- Jan 2023Series C—
- Oct 2019Series B$23.9M
#3
Seed · Minato City, Tokyo · founded 2020 · 11 employees$5.7Mraised▾
Provider of medical data analysis platform to enhance the healthcare system. It offers a platform to support analytical research using medical data and prescription decisions by doctors and provides consulting on medical data, and operation services. It specialize in data cleansing and standardization using the OMOP Common Data Model, enabling the comparison and integration of medical data across systems and institutions.
- Feb 2026Seed$2.6M
- Jul 2024Seed$2.5M
- Jul 2024Venture Debt—
- Nov 2022Seed$3.2M
#4
Seed · Setagaya, Tokyo · founded 2021$3.7Mraised▾
Provider of rehabilitation system for children. The system uses various types of sensors compatible with applications, depending on the users conditions that help to sense finger movements and detect hand, arm, eye, and leg movements. It offers a digital rehabilitation tool that utilizes interactive digital art and sensors to enhance physical therapy experiences for children with disabilities.
- Feb 2026Seed$5.4M
- Oct 2024Seed$2.9M
- Apr 2023Seed$789.3K
#5
Series B · Minato City, Tokyo · founded 2019$3.2Mraised▾
AI-based medical devices for diagnosis and treatment of heart diseases. The company has developed an automated analysis system that assists healthcare professionals in clinical decision support and treatment. The device diagnoses the heart conditions by analyzing the ECG waveforms and creating a model using deep learning techniques.
- Mar 2026Series B—
- Nov 2025Series B—
- Mar 2024Series A—
- Aug 2022Series A$3.2M
#6
Series B · Osaka, Osaka · founded 2017$1.1Mraised▾
Developer of non-invasive blood glucose sensor utilizing advanced laser technology. The company focuses on creating a needle-free sensor for individuals with diabetes. This technology aims to eliminate the need for blood extraction. It develops medical devices and wearable devices for healthcare applications.
- May 2026Conventional Debt—
- May 2026Series B$3.2M
- Feb 2022Series A$871.6K
- Jul 2021Seed$1.1M
#7
Seed · Kyoto, Kyoto · founded 2020 · 7 employees$1.4Mraised▾
AI-powered application to support women health from adolescence to menopause. The company's applications include flora, FemCamp, and Flora Expert supports management of menstruation, fertility, and mental health with AI.
- Apr 2026Seed$1.4M
- Apr 2026Conventional Debt—
- Dec 2023Seed—
#8
Series B · Tokyo, Tokyo · founded 2021$4.4Mraised▾
Provider of digital therapeutic application for headache management. The company is offering a migraine treatment app that can reduce symptoms by recognizing and improving behavioral patterns.
- Dec 2025Series B—
- Dec 2023Series A$3.4M
- Nov 2022Seed$1M
#9
Series A · Yokohama, Kanagawa · founded 2021 · 5 employees$6.4Mraised▾
Manufacturer of smart rings designed to monitor and analyze sleep. The rings utilize sensors to gather data related to heart rate, blood oxygen levels, and body temperature. Acquired data is analyzed to provide insights into sleep patterns and potential health concerns. The company also develops mobile applications for data presentation and analysis.
- Sep 2025Conventional Debt—
- Jun 2024Series A$5.6M
- Nov 2021Seed$877.6K
#10
Seed · Shinjuku, Tokyo · founded 2022$5.5Mraised▾
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- Oct 2025Seed—
- Feb 2024Seed—
- Oct 2023Seed$1.5M
- May 2022Seed—
#11
Series A · Minato City, Tokyo · founded 2018$13.3Mraised▾
Provider of AI-based analysis software for pathology image diagnosis. Pidport an AI-based software allows the user's to instantly screen pathological tissues and cells. The pathological image data and case information can be managed and stored on the cloud server.
- May 2025Series A$3.3M
- Apr 2024Series A$5.5M
#12
Series B · Osaka, Osaka · founded 2020 · 4 employees$2.4Mraised▾
Developer of AI and robotics solutions for pathological testing. The company has developed solutions that assist with the estimation of the bacterial species on a sample for an outpatient clinic. The technology can be used to detect the proper disease so as to prevent the prescription of unwanted medicine that results in drug-resistant bacteria.
- Nov 2025Series B$3.6M
- Jul 2024Series B$3.6M
- Oct 2023Series A$2.4M
- Sep 2023Seed—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of HealthTech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Digital Health is moving in Japan
A read on the academic research around Digital Health — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 528 Japan-affiliated papers.
- The University of Tokyo32
- Korea University29
- Kyoto University25
- Keio University20
- Asia University17
- Remote patient monitoring1→8
- Health informatics6→32
- Public health2→17
- Mental health1→10
- Health administration3→11
- Informatics1→8
- Health care1→55
- Public health3→47
- Health informatics6→46
- Health administration2→38
- Nursing research3→27
Where digital health is researched across Japan
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Who's filing medical devices patents in Japan
Japan medical devices patent filing is cooling — 122,211 filings from 8,000 assignees (2016–2025), led by Olympus, Fujifilm, Terumo; annual filings 12396→9767.
- Olympus19971
- Fujifilm12462
- Terumo11199
- Olympus Medical Systems8710
- Canon KK7509
- Unicharm7003
- UNI Charm6067
- Toshiba KK4181
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.