corp.henry-app.jp

Market position

Operates in the Japanese medical DX / electronic medical record market, where electronic record adoption was cited at roughly 50% overall and about 49% among hospitals with fewer than 200 beds. The company argues that the complexity of Japan's universal insurance and biennially revised medical fee schedule has kept systems designed more than 20 years ago dominant, leaving room for cloud entrants.

Combines a self-developed rezept (billing) computer with a cloud-native architecture, rather than relying on third-party or legacy on-premise rezept systems, which the company presents as enabling faster operation and lower deployment cost.

Technology

The system is split into multiple microservices; the backend is written primarily in Kotlin, with a BFF layer in Node.js and TypeScript using gRPC toward backend services and GraphQL toward clients, and a React/TypeScript frontend. It runs on Google Cloud Platform, mainly using Cloud Run. Quality assurance processes are emphasized given the regulated product domain.

Go-to-market

Direct sales and support teams targeting clinics and hospitals, with the product marketed as a standardized SaaS offering; the company builds pipeline by listing and targeting hospitals that fit the product. It also participates in industry events such as the International Modern Hospital Show and the Japan Association of Medical Informatics congress, and hosts its own Hospital DX Conference.

Clinics and small to medium-sized hospitals in Japan, including facilities under 200 beds; more recent activity extends to acute-care hospitals. Early clinic adopters were in ophthalmology, pediatrics and psychiatry.

Geography

Headquartered at NOW/HERE Shinjuku Yotsuya 3001, 10-10 Yotsuya Sakamachi, Shinjuku-ku, Tokyo, Japan, with work conducted largely remotely; events have been held in locations including Osaka.

History

Founded in May 2018, the company began selling its clinic-oriented electronic medical record in March 2021 and raised 730 million yen in June 2022 to accelerate development for small and mid-sized hospitals. Headcount was 26 at that time and around 30 in January 2023. Further financing followed in 2025 and 2026, alongside conference appearances, security-related initiatives and an award from the Tokyo Financial Award program.

Risks & controversies

Operating in a domain shaped by Japan's public insurance rules and biennial medical fee revisions requires continual system updates. Company engineers have publicly described operational difficulty and the need to revisit early architectural decisions as customers were onboarded, and identified quality assurance as a potential bottleneck in the development cycle.