GNU Health - GNU Health is a Free/Libre project for health practitioners, health institutions and governments.
Cerner - Cerner's health information and EHR technologies connect people, information and systems around the world. Serving the technology, clinical, financial and operational needs of health care organizations of every size.
OpenMRS - OpenMRS is a community-developed, open source, enterprise electronic medical record system platform.
Epic Electronic Health Records - Epic Electronic Health Records is a data-driven healthcare software company that helps hospitals, medical groups, and ambulatory practices work better together to deliver better care.
drchrono - An EHR built for your specialty:
Sunrise EMR - Sunrise EMR is a trusted platform designed to provide healthcare solutions in the hospital for better caring and management.