bill gates forbes wealthiest american gi Bill Gates remains world's richest person: Money not coming primarily from Microsoft

Bill Gates remains the richest person in the world, but he is no longer gaining the bulk of his money from Microsoft. The American businessman and Microsoft co-founder topped the Forbes 400, which he has consistently ranked on throughout his career. Gates remains the world’s richest American for the 20th year in a row.

According to Forbes, Microsoft only accounts for one-fifth of Gates’ $72 billion worth. Instead, he made the majority of his money through his investment firm Cascade, which owns portions of businesses like Deere & Co., the Canadian National Railway and Mexican Coke bottler Femsa. Despite giving away a reported $28 billion to charities between the years 2007 and 2012, Gates managed to become $9.8 billion richer since the start of 2013, Bloomberg’s Billionaire Index reports.

Taking the no. 2 spot on Forbes’ list of the wealthiest Americans is Warren Buffett, who is worth $58.5 billion. Following behind him is Oracle CEO Larry Ellison, who is worth $41 billion. The joint wealth of those on the Forbes 400 hit $2 trillion in 2013.