Essence Group Health Corporation (private, www.eghc.com), based in St. Louis, Missouri, owns and operates (1) Lumeris,  a health care software-as-a-service company that aggregates and analyzes data across the entire continuum of care to deliver previously unattainable collaboration among health plans, hospitals, physicians, and patients, (2) ClearPractice, a leading provider of SaaS-based practice management solutions for offices of one to ten physicians, and (3) Essence Healthcare, a leading 42,000-member Medicare Advantage Plan in St. Louis.