HMS was co-founded in 1984 by Tom Givens and John Doss in Nashville, Tennessee. They got their start by customizing software for the IBM System 32 minicomputers used by American Medical Centers hospitals. This led them to land Community Health Systems as their first client. HMS grew rapidly by partnering with IBM and selling to hospital chains. By next week's episode, HMS had grown to over 600 hospital clients and $100M in annual revenue, evolving from financial systems to clinical applications.