Bill Conway is the chief investment officer and Dan D'Aniello runs the real-estate funds.

ECONOMIST: The Carlyle Group

He cofounded Carlyle in 1987 with fellow billionaires David Rubenstein and Daniel D'Aniello.

FORBES: William Conway, Jr.

That is due in part to the fact that no Carlyle employees including founders David Rubenstein, William Conway and Daniel D'Aniello are selling stock in the IPO.

WSJ: Carlyle Takes Cautious Approach in IPO Price

In 1987 William Conway and Daniel D'Aniello (former financial gurus at MCI Communications and Marriott Corp. respectively) teamed up with David Rubinstein (a lawyer and Carter administration official) to found the Carlyle Group, a private equity firm based in the District.

FORBES: Valuations