4 Midstate companies make Fortune's fast-growing list

Five Tennessee company's made Fortune's annual list of the fastest growing publicly traded companies, with American Healthways leading the local contingent.

The Nashville-based disease management company placed 16th on the 100 Fastest Growing list, followed by Tractor Supply Co. (#43), Caremark Rx (#48), Accredo Health (#67) of Memphis and Community Health Systems (#91). To qualify for consideration, companies must have had a market cap of at least $50 million, at least $50 million in annual revenue, and at least 20% earnings and sales growth over the past three years.