All About Staffing , Inc is an affiliate of HCA, the largest hospital company in the United States. HCA is the leading provider of healthcare services in the U.S composed of locally managed facilities that include approximately 169 hospitals and 113 outpatient surgery centers in 20 U.S. states and 6 hospitals in England. 

At its founding in 1968 in Nashville, Tennesse HCA was one of the nation's first hospital companies established in the USA.