There is a strong family feeling at this employee-owned supermarket chain, which operates more than 1,100 stores in five Southeastern states. Turnover here is incredibly low, averaging 5% for full timers and 38% for part timers. Nearly 20,000 employees have worked at Publix for more than 15 years, and one reason they stay is a stock ownership plan that automatically plunks shares into employee accounts at the end of each year. The contribution ranges from 7% to 10% of their pay. Cost to employees is zero. And for the last 55 years, Publix stock has grown on average by almost 16% annually. All these factors have made Publix the largest employee-owned company in the nation. Read the Great Place to Work review here.