The Top 10 World's Richest Entrepreneurs

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2. Carlos Slim Helú - $72 billion

Carlos Slim Helú may be best known as a telecommunications executive, but the 74-year-old made his start in Mexico with a brokerage firm he opened shortly after completing college. He would then go on to invest in a variety of businesses, and acquire Telmex from the Mexican government in 1990. Today, he has a net worth of $72 billion, and came in second place overall on Forbes's Rich List.