Ontol AI Platform for Hospitals

TESSER Inc. is a South Korean digital healthcare company headquartered in Gangnam-gu, Seoul. It builds AI tools for hospitals, with a first focus on health checkup centers where report writing and result explanation are manual and time-consuming.

Its Ontol platform connects to hospital EMR, OCS and PACS through an integration API and an ontology that maps hospital terms and workflows. Hospital modules cover checkup design, automated judgment and report writing, pre-visit questionnaires, voice charting and insurance paperwork. The company says its checkup solution is used by more than 30 mid-to-large checkup centers.

• Ontol Scribe: auto-generates health checkup result reports by integrating with the hospital EMR.
• Ontol Report: explains screening results in plain language with a patient-data chatbot.
• Checkup center tools: checkup design, automated judgment, and post-checkup care and counseling.
• Hospital operations: pre-visit questionnaires, voice-based charting, insurance paperwork and inpatient management.
• Integration API: connects EMR, OCS, PACS, billing and appointment systems.
• AI infrastructure: hardware setup and data structuring, on-premises plus cloud.

Private hospitals and checkup chains in Vietnam could use AI to draft checkup result reports. Corporate health-screening programs could provide plain-language result explanations. Localization to Vietnamese would be required.

The company reports that Ontol Scribe cuts report preparation time by 50 to 80 percent, according to a November 2025 article. It connects to existing systems without replacing them. Ontol Report explains screening results in plain language to patients. Deployment can be on-premises, cloud or both.

Health screening is a large and growing service in East and Southeast Asia, and AI-drafted reports help centers handle volume. Vietnamese private hospitals and checkup chains expanding preventive services face the same report-writing bottleneck, though Vietnamese language support would be required.

TESSER Inc., 529 Seolleung-ro, Gangnam-gu, Seoul. Signed an agreement with St. Vincent's Hospital, Suwon in November 2025, and an MOU with Japanese consulting firm Snackremonedo in October 2025 toward entering Japan.