Community Health Systems, Inc.
One of the largest hospital operators in the United States, running roughly six dozen hospitals and more than a thousand outpatient sites across a dozen-plus states, from emergency rooms to urgent care and physician practices. Founded in 1985 in Franklin, Tennessee, it grew by buying struggling rural and smaller-town community hospitals and folding them into a bigger network that shares back-office services like billing and supply buying. Its name reflects that mission—keeping local "community" hospitals alive with the help of a larger corporate system.