Best Healthcare IT Companies in Tokyo, Japan
The 82 best Healthcare IT companies in Tokyo, Japan in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: AI Medical Service.
Our analysis of 248 Healthcare IT companies
$18.1b in tracked funding; 87% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Healthcare IT companies in Tokyo
| # | Company | Disclosed funding | Last round | Stage | Founder | Tech stack | Web popularity | 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 | 智裕 多田 CEO and Representative Director | Apple iCloud MailGoogle WorkspacePHP+25 | Top 5M | 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 | Kohta Satake Md Mph Founder | Amazon Web ServicesCloudflareAmazon S3+13 | Top 500k | 58 patents Digital health platform for monitoring cancer symptoms and hypertension risk. | — |
| 3 | Linc'well Provider of a clinic management platform for medical practices | $69M | 54 mo ago | Series C | Ryosuke Yamamoto Co-Founder & Co-CEO | STUDIOApple iCloud MailGoogle Workspace+15 | Top 10M | — | — |
| 4 | Information Technology Medical Online platform for patient charts, billing, and video chatting with patients | $67M | 32 mo ago | Series C | Yusuke Sugomori Co-Founder & CTO | NotionSuper BuilderTurbopack+20 | Top 10M | — | — |
| 5 | TXP Medical Digital emergency department management and coordination tool | $16M | 19 mo ago | Series C | Tomohiro Sonoh CEO | ContentfulNode.jsFirebase+15 | Top 5M | — | — |
| 6 | Rehab for JAPAN Provider of online and in-person rehabilitation services and data analytics for elderly care | $14M | 2 mo ago | Series D | Ryo Okubo CEO | SentryApple iCloud MailGoogle Workspace+20 | Top 10M | — | — |
| 7 | 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 | Top 50M | — | — |
| 8 | Araya Brain Imaging Neuroimaging technology and services | $9M | 80 mo ago | Series B | Ryota Kanai CEO | Cart FunctionalityWordPressApple iCloud Mail+30 | Top 5M | 5 patents AI-based personalized brain imaging analysis for predicting individual health characteristics | 1 launch |
| 9 | MediPhone Provider of medical translator services and software for healthcare organizations | $8M | 47 mo ago | Series A | Mayumi Sawada CEO | WordPressMySQLPHP+21 | Top 5M | — | — |
| 10 | LPixel Image analysis tools using artificial intelligence | $7M | 115 mo ago | Series A | Kamada Tomy CEO | WordPressApple iCloud MailGoogle Workspace+18 | Top 5M | — | — |
| 11 | Holoeyes Provider of technology for 3D VR visualizations of the human body for medical examination | $6M | 12 mo ago | Acquired | — | WordPressMySQLPHP+19 | Top 50M | 6 patents VR-based medical data visualization and simulation platform | — |
| 12 | Yuimedi Provider of medical data analysis platform to enhance the healthcare system | $6M | 4 mo ago | Seed | Emily Grimes CEO | — | — | 5 patents Data conversion, generation, and medical analytics platforms for healthcare information processing | — |
| 13 | Medley Online portal for disease-specific medical information and medical jobs | $4M | 110 mo ago | Public | — | GSAPAmazon Web ServicesSplide+14 | Top 5M | — | — |
| 14 | Simplex Quantum Provider of AI-based device for measuring ECG of patients | $4M | 42 mo ago | Series A | Ryu Saito Chief Executive Officer | — | — | 27 patents Software and hardware for data processing, authentication, and medical information systems | — |
| 15 | 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 | Top 50M | — | — |
| 16 | Cardio Intelligence AI-based medical devices for diagnosis and treatment of heart diseases | $3M | 3 mo ago | Series B | Yuichi Tamura CEO | WordPressMySQLPHP+14 | Top 10M | 31 patents AI-driven electrocardiogram signal analysis and diagnostic decision support software | — |
| 17 | CogSmart AI-based brain health assessment and analysis tool for providers | $3M | 53 mo ago | Series A | Akira Higuchi CEO | — | — | 7 patents Patents concentrated in computing, sensing & instrumentation | — |
| 18 | 3Sunny Provider of website development and SEO services for medicare issues | $3M | 63 mo ago | Seed | Yukihiko Enomoto Co-Founder & COO | — | — | — | — |
| 19 | Pocket Therapist Provider of a platform that offers information on health management and collaboration health | $3M | 43 mo ago | Series B | Naoto Fukutani CEO | WordPressMySQLPHP+23 | Top 10M | — | — |
| 20 | Antaa Provider of second opinion platform for doctors | $2M | 73 mo ago | Seed | Shun Nakayama CEO | — | — | — | — |
| 21 | iMed Technologies Developer of AI-based video analysis technology for surgery support | $2M | 68 mo ago | Seed | Motohisa Kaneko Co-Founder | WordPressMySQLPHP+20 | Top 50M | — | — |
| 22 | Precal Provider of online prescription management software | $2M | 18 mo ago | Seed | — | WixSentryBootstrap+13 | Top 50M | — | — |
| 23 | Susmed An app which takes user data, puts it through an algorithm, and then provides advice for fixing patient's… | $880K | 112 mo ago | Public | Taro Ueno CEO | WordPressMySQLPHP+16 | Top 5M | 26 patents Digital therapeutic platforms for mental health and sleep disorder management | — |
| 24 | 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 | — |
| 25 | Korbato Health AI based platform offering solutions for early detection and prevention of cardiovascular disease | $286K | 24 mo ago | Seed | Ryuichiro Yagi CEO | — | — | — | — |
Top 12 Healthcare IT companies in Tokyo
#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
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
#3
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
#4
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
#5
Acquired · Tokyo, Tokyo · founded 2016 · 7 employees$6.4Mraised▾
Provider of technology for 3D VR visualizations of the human body for medical examination. Applications include medical training and 3D reports for better examination.
- Jun 2025Series B$32M
- Aug 2023Series B$2.7M
- Feb 2022Series B—
- Apr 2019Series B$2.2M
#6
Series C · Bunkyo, Tokyo · founded 2017 · 20 employees$16.3Mraised▾
Digital emergency department management and coordination tool. The company has developed products like NEXT Stage ER which has been built for EHR management and patient information recording. Another product NEXT Stage ER cloud has been built with the cloud-based storage system. Features of the products include hospital data management, data-based decision-making, and more.
- Oct 2024Series C$16.3M
- Apr 2022Series B—
#7
Series C · Chiyoda City, Tokyo · founded 2015 · 70 employees$67.1Mraised▾
Information Technology Medical provides healthcare information. The company offers an app for services such as health information, disease management, insurers making, consultation recommendation, etc. The app allows doctors to manage patient charts, billing, and video chatting with patients.
- Oct 2023Venture Debt—
- Oct 2023Series C$27.2M
- Apr 2018Series A$10.1M
#8
Seed · Setagaya City, Tokyo · founded 2020$406.2Kraised▾
Provider of VR-based solutions for visual cognitive disabilities. The company is involved in developing a series of visual cognitive testing and training products. It uses AI to collect data, perform the algorithm-based inspection for the evaluation, and measure the visuospatial cognitive ability of the brain.
- Sep 2025Seed$406.2K
- Dec 2023Seed—
#9
Series G · Tokyo, Tokyo · founded 2014 · 69 employees$100.6Mraised▾
Developer of therapeutic mobile applications for various medical conditions. These applications provide treatment interventions outside traditional clinical settings, leveraging evidence-based medical programs. The apps facilitate individualized patient follow-up, aiming to improve treatment outcomes through behavioral and cognitive changes. Additionally, the company develops mobile health programs for corporate wellness initiatives. The focus is on creating digital therapeutics to expand access to care and improve patient health.
- Aug 2022Series G$52.5M
- Mar 2021Series D—
- Jul 2019Series C$20.4M
- Mar 2018Series B$14.1M
#10
Series A · Minato, Tokyo · founded 2021$3.6Mraised▾
Provider of AI-based software for the analysis of brain images. The company's product "Mvision " uses AI to analyze the health status of the brain by analyzing brain MRI images. It provides image quantification services for clinical diagnosis and health checkups based on big data, aiming to provide new lifetime health support.
- Sep 2024Series A$3.6M
#11
Series C · Toshima City, Tokyo · founded 2017 · 40 employees$121.9Mraised▾
AI-powered endoscopic software to detect early-stage gastrointestinal cancers. The company's mission focuses on reducing cancer mortality through tools like gastroAI, which supports physicians worldwide.
- Apr 2022Series C$70M
- Oct 2019Series B$42.9M
- Aug 2018Series A$9M
#12
Seed · Shibuya, Tokyo · founded 2019 · 6 employees$1.5Mraised▾
Precal provides online prescription management software. It provides input data that is difficult to implement with existing OCR and QR codes and that does not require correction by human input. The scanned data can be checked all at once on the management tablet, and by selecting the prescription to be commissioned from among them, the online clerk can request input.
- Dec 2024Seed$1.5M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Healthcare IT coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Digital Health in Tokyo is moving
A read on the academic research around Digital Health in Tokyo — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 70 papers.
- The University of Tokyo32
- Tokyo Women\'s Medical University6
- University of Tokyo Hospital6
- University of Tokyo Health Sciences4
- Tokyo University of Technology3
- Interpretability3
- Visualization3
- Remote patient monitoring3
- Big data2
- Analytics2
- Health informatics5
- Health care3
- Nursing research3
- Materials informatics2
- Wearable computer2
- Health informatics2→9
- Health administration1→8
- Public health2→6
- Nursing research1→4
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.