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35. Dollar General
2007 revenue: $9.5 billion
Fiscal year end: Jan. 31
2007 Employees: 71,500
Industry: General merchandisers
CEO: Richard W. Dreiling
Location: Goodlettsville, Tenn.

The nation's largest small-box discount chain, Dollar General owns and operates more than 8,000 stores in 35 states. The retailer was Taken private by Kohlberg Kravis Roberts, GS Capital Partners, Citi Private Equity, and other equity co-investors in 2007.

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Last updated May 28 2008: 12:40 PM ET
Methodology: This list includes U.S.-based private companies for which 2007 revenue and employee data are available. Data were obtained directly from the company or from various published sources, such as SEC filings, Mergent, and Hoover's. Included are family-held companies, companies owned by private equity firms, cooperatives, not-for-profit health-care companies, real estate companies, and U.S. government-owned entities. Excluded are mutual insurance companies and foreign companies.