The two largest EMR vendors are Cerner and Epic, covering over three fourths of new, large hospital EMR contracts. A recent KLAS industry report details EMR market share numbers as well as reasons for electronic medical record adoption trends:
The HITECH Act that started this mass migration is clearly not over. There are over 400 large hospitals that still do not utilize a currently marketed EMR and thus still face a decision.
Check out the full post, KLAS Report: The Gap Between EMR Vendor Market Share Widens, from EMR Daily News.