Essential
Citronnier
The world's leading Medical SaaS pioneer. From EMR to advanced Bio-Investment platforms, we engineer the future of health.
Essential means
Indispensable.
Just as a lemon tree (Citronnier) provides essential nutrients, Essential Citronnier provides the vital software infrastructure that the medical world relies on.
We are not just building apps; we are crafting the digital DNA of future healthcare. From EMR systems that save time to bio-investment platforms that fuel innovation.
Pioneering Medical SaaS
We build the world's best software for the medical industry, connecting data, patients, and professionals.
Advanced EMR
Next-generation Electronic Medical Record system optimizing clinical workflows.
Hospital Website Development
Custom planning, design, and development of websites for hospitals and clinics.
Hospital AX Transformation
Complete hospital digital transformation with GEO optimization, EMR integration, and custom app development.
JamJam Sleep App
An iOS sleep app with timeline tracking, checklist routines, and sleep-debt graphs.
Buybio Bio-Invest
The premier investment platform specialized in the biotech and pharmaceutical sectors.
Sinsindangbu Care
AI-powered food photo nutrient analysis, CKD stage-specific management, and AI health consultation for kidney patients. Co-developed with Mediologie.
Hair Loss Management
Comprehensive tracking and personalized care solutions for hair health.
Medical Dictionary
The most accurate and up-to-date medical terminology database for professionals.
Lemon Medical Blog
Insights and updates on medical technology and health trends.
TMEDIO Lab Website
Official website for Professor Kim Hye-Ryun's Translational Medicine Immuno-Oncology Lab at Yonsei University Severance Hospital.
Lab-Connected
Integrated laboratory operations infrastructure (B2L SaaS) based on the Early Startup Package business plan.
Company Profile
Medical SaaS team in Seoul
Essential Citronnier builds clear, practical software for clinics, labs, and healthcare teams.