9 Michael Bloomberg
By September 2013, Michael Bloomberg’s wealth was reported by Forbes as $31 billion and ranked him as the 10th richest person in the United States. In September 2015, his net worth was $43.3 billion, ranking him the 6th richest person in the United States.
Also, he put in the seed funding for the company and now owns 88% of the business, which has estimated revenues of $10 billion. He worked his way up to general partner but was fired in 1981 after 15 years at Salomon. Michael Bloomberg is the 9th richest men in the world 2019 with $65.9B net worth.
