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Bonnie Hammer
BEVERLY HILLS, CA - NOVEMBER 20: Chairman of NBCUniversal Cable Entertainment Bonnie Hammer speaks onstage during the Girls Inc. Los Angeles Celebration Luncheon at Beverly Hills Hotel on November 20, 2013 in Beverly Hills, California. (Photo by Mike Windle/Getty Images)Mike Windle Getty Images
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Hammer got her current gig in early 2013. So far, so good: Her division--which includes brands like USA and Bravo as well as two film studios--brought in over 50% of NBCU's $4.7 billion in 2013 profits. Hammer will join two public boards this fall.