Publix Super Market has grown into a Fortune 500 company with more than 870 stores. The grocery store chain is one of the fastest-growing, employee-owned companies in the United States. Also known as one of the 10 largest-volume supermarket chains in the nation, the company s retail sales reached nearly $20 billion in 2004. Publix offers pharmacy and photo development services along with food and other grocery store items. A privately held company operating stores in Florida, Georgia, South Carolina, Alabama and Tennessee, George W. Jenkins founded Publix in Winter Haven, Fla., in 1930. Publix Super Market maintains a location in Orange Park, Fla.