HeyDonto AI Technology (legal: VMC MAR COM Inc. DBA HeyDonto) is a Knoxville-based B2B dental data infrastructure company selling three product brands on a shared FHIR-native data layer: Axiomera (semantic intelligence engine that binds clinical concepts to CDT, SNODENT, SNOMED CT, ICD-10, and LOINC ontologies), Atlas (multi-location operational and clinical analytics for DSOs), and Conduit (the dental interoperability exchange connecting dental PMSes to medical EHRs, payers, and AI platforms over FHIR R4 and SMART on FHIR). Closed a $20M Seed at a $200M valuation in April 2026; founding member of OHIA.