Austin, Tex.

Michael Dell
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How'd he get so rich? From humble beginnings in his University of Texas dorm room, Dell has grown his eponymous company into the world's second-largest computer maker. He is today worth more than $12.3 billion. The Michael & Susan Dell Foundation, which has an endowment of more than $1 billion, supports education and health initiatives.

Learn more about Dell (DELL).

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