Post 200 The guide to the region's top businesses

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Carlyle Group founders William Conway, Daniel D'Aniello and David Rubenstein. (Astrid Riecken/For The Washington Post)

Private companies

Carlyle Group

After 25 years as a private company, District-based Carlyle Group is preparing to go public sometime in the the first half of 2012. Though it cut its teeth in defense and aerospace deals, Carlyle now boasts a diversified portfolio, including real estate, a variety of companies, and esoteric assets such as the debt of foreign nations. One of its companies, Dunkin' Donuts went public in 2011. Co-founders William E. Conway Jr., David M. Rubenstein and Daniel A. D’Aniello are billionaires and beginning to give away substantial sums.


Co-founder David M. Rubenstein is the largest single donor in Kennedy Center history, with gifts totaling over $25 million.

1001 Pennsylvania Ave. NW, Suite 220 South

Washington D.C., 20004

202-729 -5626

Founded: 1987

Co-founders: William E. Conway Jr., Daniel A. D’Aniello and David M. Rubenstein

Revenue: $153000000

Employees (local): 1100 (463)

NOTE: Our methodology for the rankings.